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Marine & Freshwater Research is a multidisciplinary journal publishing original research and reviews on all aquatic environments and subject areas. More

Editor-in-Chief: Max Finlayson

 
 
 

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Published online 05 February 2016
Parameter-sparse modification of Fourier methods to analyse the shape of closed contours with application to otolith outlines 
Alf Harbitz

The shape of the closed contour of fish ear stones (otoliths) has proven to contain important information useful for fish stock management. To reveal shape differences between fish stocks, classical Fourier methods have been the most frequently used approach. A simple modification has been developed that needs considerably fewer Fourier descriptors to obtain a good, large-scale description of the contour.

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Published online 05 February 2016
Coral bleaching in turbid waters of north-western Australia 
A. Lafratta, J. Fromont, P. Speare and C. H. L. Schönberg

Using towed imagery in turbid waters enabled a rapid, large-scale survey that observed severe thermal coral bleaching in March 2013 off Onslow, north-western Australia. Despite predominance of bleaching resistant species we found over 50% of all corals bleached in 10–15-m water depth. Recurrent heat stress is assumed to have structured the local coral community, eliminating thermally vulnerable species.

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Published online 05 February 2016
Fish on the roof of the world: densities, habitats and trophic position of stone loaches (Triplophysa) in Tibetan streams 
Dean Jacobsen, Søren Kock Laursen, Ladislav Hamerlik, Karen Moltesen, Anders Michelsen and Kirsten Seestern Christoffersen

We surveyed Tibetan streams between 4459 and 5062 m above sea level to obtain data on densities, habitat preferences, feeding selectivity and food web position of the stone loach Triplophysa; some of the world’s highest living and ecologically least studied fish. Densities were highest near lakes (1.6 individuals m–2) and decreased with altitude and glacial influence. Triplophysa was omnivorous, but was always at the top of the food web.

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Published online 05 February 2016
Open water metabolism and dissolved organic carbon in response to environmental watering in a lowland river–floodplain complex 
Todd A. Wallace and Deborah Furst

The influence of environmental watering actions on dissolved organic carbon and open-water productivity within management areas and the adjacent river channel was assessed. The results contribute to our understanding of the role of terrestrial organic material in supporting aquatic food webs in lowland rivers, and demonstrate potential for environmental watering to have a positive influence on riverine productivity during periods of low water availability.

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Published online 27 January 2016
A bioeconomic analysis of conserving freshwater values in an agricultural landscape 
D. M. Warfe and J. G. Tisdell

We compared the effects of water allocations, conservation and climate change scenarios on economic returns from irrigation. Land use had the greatest economic returns, but land area suitable for irrigation rather than irrigation water itself was the major limitation. Annexing land for freshwater conservation values had only small effects on economic returns, suggesting that conservation and agricultural development are not necessarily antagonistic goals.

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Published online 13 January 2016
Review and conceptual models of agricultural impacts and water quality in waterways of the Great Barrier Reef catchment area 
Aaron M. Davis, Richard G. Pearson, Jon E. Brodie and Barry Butler

There has been minimal synthesis of the impacts of water-quality degradation from agriculture on freshwater ecosystems in northern Australia. The present study conceptualises the spatial and temporal processes driving water-quality pressures in Australia’s Great Barrier Reef catchment area, with associated ecological impacts. Hydrology mediates the timing and scale of pollutant delivery to freshwater ecosystems, and the risk periods and specific nature of water-quality impacts can differ markedly from those most affecting downstream marine environments.

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Published online 12 January 2016
Avoid predation or take risks in basic activities? Predator–prey relationship in subtropical streams between decapods and caddisflies 
Cristina Cerezer, Cristiane Biasi, Gláucia Bolzan Cogo and Sandro Santos

The aim of the present study was to analyse the movement, feeding and case-building behaviours of Phylloicus in the presence of a likely decapod predator, Aegla longirostri. The study demonstrated that caddisfly is able to detect the presence of the predator and modify its activities. It increases its chances of survival by building its case of more resistant materials and by reducing its movement.

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Published online 12 January 2016
Distribution of rotifers and other meiofauna in the bryophytes and hyporheic zone of a karst hydrosystem – an example of a nested community 
Tvrtko Dražina, Maria Špoljar, Biserka Primc and Ivan Habdija

Freshwater sediments harbour minute but diverse microscopic fauna, dominated by rotifers and nematodes. In our research we try to define occurrence and vertical distribution of these organisms in a specific karst sediment – tufa. Deeper parts of sediments are mostly inhabited by surface fauna that is morphologically pre-adapted to life within sediment interstices and this seems to be general rule in freshwater ecosystems.

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Published online 12 January 2016
New approaches to the ecological risk assessment of multiple stressors 
Paul J. Van den Brink, Catherine Bo Choung, Wayne Landis, Mariana Mayer-Pinto, Vincent Pettigrove, Peter Scanes, Rachael Smith and Jenny Stauber

To assess the ecological risks of multiple stressors, future risk assessments should include cultural and ecological protection goals, the development of ecological scenarios, the relevant interactions among species, potential sources of stressors and their interactions and the development cause–effect models. For this, the application of new and emerging tools such as ‘big data’, ecological modelling and the incorporation of ecosystem service endpoints is needed.

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Published online 12 January 2016
Contrasting and complex evolutionary histories within the terapontid grunter genus Hephaestus revealed by nuclear and mitochondrial genes 
Bradley J. Pusey, Andrew Bentley, Damien Burrows, Colton Perna, Aaron Davis and Jane Hughes

Contrasting evolutionary histories may be revealed by mitochondrial and nuclear information. Mitochondrial data suggested that the widespread sooty grunter (Hephaestus fuliginosus) comprised three separate species; however, nuclear information revealed it to be one species only. The phylogeny revealed by mitochondrial data was strongly influenced by historical hybridisation within Hephaestus. Both sources of genetic information indicated a need for a revision of Terapontidae.

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Published online 08 January 2016
Wild populations of Sydney rock oysters differ in their proteomic responses to elevated carbon dioxide 
E. L. Thompson, L. Parker, V. Amaral, M. J. Bishop, W. A. O'Connor and D. A. Raftos

Much of the CO2 released into the atmosphere from burning fossil fuels is being absorbed by the oceans changing the pH and causing it to become more acidified. As a consequence, marine organisms are likely to exhibit many changes, with shelled organisms such as oysters being particularly susceptible. This research suggests that the local environments from which oysters originate may affect their capacity to respond to ocean acidification.

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Published online 07 January 2016
Evaluating potential sources of variation in Chironomidae catch rates on sticky traps 
Joshua T. Smith, Jeffrey D. Muehlbauer and Theodore A. Kennedy

This study answers practical questions regarding sticky trap sampling artefacts. We evaluated whether catch rates and sex ratios of Chironomidae were affected by spraying traps with insecticide, placing traps at different heights above ground, and placing traps at different locations within a terrestrial habitat patch. Our results inform whether these variables warrant consideration in future sticky trap studies.

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Published online 05 January 2016
The coral communities of Yongle atoll: status, threats and conservation significance for coral reefs in South China Sea 
Meixia Zhao, Kefu Yu, Qi Shi, Hongqiang Yang, Bernhard Riegl, Qiaomin Zhang, Hongqiang Yan, Tianran Chen, Guohui Liu and Ziyun Lin

The South China Sea (SCS) is an area of extensive coral reef development, yet the understanding on the coral reefs of this region is still low. We analysed the coral communities of Yongle atoll, the biggest atoll in the Xisha Islands, central South China Sea. This baseline investigation highlighted the ecological value of these reefs. They should receive much more scientific and conservation attention.

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Published online 05 January 2016
Species composition and hybridisation of mussel species (Bivalvia: Mytilidae) in Australia 
Emi S. Ab Rahim, Thuy T. T. Nguyen, Brett Ingram, Cynthia Riginos, Kim J. Weston and Craig D. H. Sherman

The taxonomic status of mussels belonging to the genus Mytilus is explored for several Australian populations. The use of nuclear and mitochondrial genetic markers show that the majority (98.5%) of individuals are M. galloprovincialis. The analysis also revealed that southern and northern hemisphere haplotypes are present, suggesting the introduction of non-native M. galloprovincialis lineages into Australia.

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Published online 05 January 2016
The potential of benthic iron and phosphorus fluxes to support the growth of a bloom forming toxic cyanobacterium Lyngbya majuscula, Moreton Bay, Australia 
Peter Hanington, Andrew Rose and Ron Johnstone

After significant benthic community change following a major flood event, sediment–water fluxes were measured to assess the potential of sediments to support the growth of Lyngbya majuscula. The results show that intermittent periods of oxygen depletion can trigger benthic releases of biologically significant amounts of iron that could support the initiation and growth of L. majuscula blooms.

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Published online 05 January 2016
Inherent variation in carbon and nitrogen isotopic assimilation in the freshwater macro-invertebrate Cherax destructor 
Debashish Mazumder, Li Wen, Mathew P. Johansen, Tsuyoshi Kobayashi and Neil Saintilan

A laboratory based feeding experiment was conducted to examine how well freshwater macro-invertebrate muscle tissues isotopic ratios reflect the variability of various diet types and diet combinations they are fed. The study provides experimental evidence of individual variability in dietary assimilation. The results help interpret the trophic ecology of individuals feeding on the same or similar diets in the food web.

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Published online 17 December 2015
Age, growth and maturation of Sthenoteuthis oualaniensis in the eastern tropical Pacific Ocean by statolith analysis 
Bi Lin Liu, Xin Jun Chen, Jian Hua Li and Yong Chen

This paper provides basic information on the age, growth and maturation of S. oualaniensis in the equatorial waters of the ETPO, by using statolith microstructure analysis. The study improves our knowledge of the key life-history and population parameters for S. oualaniensis in the less studied ETPO waters and helps in the assessment and management of this important species.

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Published online 15 December 2015
Changes in discharge affect more surface than subsurface breakdown of organic matter in a mountain stream 
Libe Solagaistua, Maite Arroita, Ibon Aristi, Aitor Larrañaga and Arturo Elosegi

Freshwater ecosystems are particularly vulnerable to the increasingly more frequent discharge fluctuations worldwide. Water depth and velocity modifications in streams affect the biota and the processes this biota is involved in. We have shown that the wet subsurface area of the stream can maintain organic matter decomposition rates along those discharge fluctuations, attenuating the effect on the total, reach scale, decomposition.

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Published online 15 December 2015
Shell shape as indicator of pollution in marine gastropods affected by imposex 
M. A. Primost, G. Bigatti and F. Márquez

Geometric morphometrics of marine gastropods allow detecting whether the imposex incidence associated with TBT pollution (neoformation of penis in females) is related to shell-shape variation. This non-destructive technique could help monitor polluted areas without sacrificing animals through the use of gastropod shells as indicators.

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Published online 10 December 2015
How water level management affects cladoceran assemblages in lakes lateral to a reservoir 
José Roberto Debastiani-Júnior and Marcos Gomes Nogueira

The effects of operational water level depletion on cladocerans from two lakes bordering a Brazilian run-of-river reservoir were studied. Cladocera showed different responses depending on the connection between lake and reservoir. It is proposed that continuous application of management may lead to a shift in the steady-state equilibrium of the system and loss of diversity.

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Published online 10 December 2015
Potential invasions of phytoplankton in ship ballast water at South Korean ports 
Bonggil Hyun, Kyoungsoon Shin, Min-Chul Jang, Pung-Guk Jang, Woo-Jin Lee, Chul Park and Keun-Hyung Choi

The survival and growth of ballast water-mediated phytoplankton communities was assessed, taking into account the specific growth rate, time delay for growth and initial dispersal. Most invasions appeared to fail at the initial dispersal phase. However, they could grow fast enough to overcome the initial dispersal phase if they were dispersed in highly eutrophic waters.

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Published online 10 December 2015
Photobiology of the zoanthid Zoanthus sociatus in intertidal and subtidal habitats 
Miguel C. Leal, Igor C. S. Cruz, Carlos R. Mendes, Ricardo Calado, Ruy K. P. Kikuchi, Rui Rosa, Amadeu M. V. M. Soares, João Serôdio and Rui J. M. Rocha

We investigated the photobiology of a symbiotic zoanthid inhabiting different tidal environments: subtidal, intertidal pools and intertidal areas exposed to air during low tide. Results show significant differences in symbiont cell density, pigment content and photochemical efficiency among tidal habitats. These findings suggest that aerial exposure conditions affect photochemical processes but have no dramatic consequences such as bleaching.

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Published online 10 December 2015
Age- and sex-dependent changes in morphometric and metabolic variables in the long-lived freshwater mussel Diplodon chilensis 
Maria S. Yusseppone, Betina J. Lomovasky, Carlos M. Luquet, Maria C. Ríos de Molina and Iara Rocchetta

The aging process in long-lived bivalves could affect metabolic variables. The aim of this study was to analyse possible changes in metabolic and morphometric variables over the lifetime of the freshwater mussel Diplodon chilensis. We propose an age-range (20–30 years old) that would be better suited for bioremediation strategies and would ensure an enhancement of the water and sediment cleansing in Patagonian freshwater bodies.

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Published online 10 December 2015
Diversity of ammonia-oxidising bacteria and archaea in seven different estuarine sediments from Poyang Lake 
Ping Sheng, Yizun Yu, Xiaojuan Tian, Dongsheng Wang, Zhihong Zhang and Jiannan Ding

Poyang Lake is the largest fresh water lake in China. However, nitrogen levels of the lake are increasing because of industrialisation and urbanisation, threatening the stability of the overall ecosystem around the lake areas. Our study indicated that the diversity of ammonia-oxidising bacterial and archaeal communities varied among the different estuaries, and several environmental factors significantly affected those microbial diversities.

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Published online 10 December 2015
Spatial partitioning in the use of structural woody habitat supports the cohabitation of two cod species in a large lowland river 
J. A. Lieschke, J. P. Lyon, P. D. Moloney and S. J. Nicol

The use of different structural woody habitats, distance to bank and the interaction between habitats and distance to bank was investigated for Murray cod and trout cod in the mid Murray river, Australia. The study found that both species increased in abundance when structural woody habitat with hollows was present. However, distance to bank also played an important role in abundances, which has important relevance for stream managers.

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Published online 10 December 2015
Community structure of deep-water decapod crustaceans below the oxygen minimum zone in the south-east Gulf of California and analysis of environmental drivers 
Vanesa Papiol and Michel E. Hendrickx

Oxygen Minimum Zones (OMZs) strongly affect the distribution of megafauna. Bathymetric and seasonal patterns of distribution of decapod crustaceans were studied on the continental slopes off the Mexican Pacific, under the largest OMZ of the world. Bathymetric patterns in community composition were related to the swimming capacity and feeding strategies, and seasonal patterns were related to the community size structure. Oxygen, temperature and food were important drivers of those patterns.

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Published online 27 November 2015
Industrial past, urban future: using palaeo-studies to determine the industrial legacy of the Barwon Estuary, Victoria, Australia 
J. M. Reeves, P. A. Gell, S. M. Reichman, A. J. Trewarn and A. Zawadzki

Globally, estuaries are focal points of industry and human activity, leading to alteration and contamination. By looking at the sediment archive, we trace the major impacts on the Barwon Estuary through time, pinpointing major historical events in the system. This approach can be applied to estuaries worldwide to understand the natural state of the system and trajectory of change.

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Published online 27 November 2015
Predicting natural instream woody-habitat loads across large river networks 
Adrian Kitchingman, Zeb Tonkin, Renae M. Ayres, Jarod Lyon, Justin C. Stout, Ian D. Rutherfurd and Paul Wilson

Knowledge of natural or pre-disturbance instream woody-habitat (IWH) loads is useful to guide such restoration programs; however, such datasets are often unavailable. In the present study, natural IWH loads were mapped along 105 km of undisturbed rivers in south-eastern Australia then modelled for all major Victorian rivers. Distinct IWH-loading trends were noticeable over larger spatial scales. Eastern Victoria showed relatively lower natural IWH loads than did western Victoria.

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Published online 27 November 2015
Quantitative electron microprobe mapping of otoliths suggests elemental incorporation is affected by organic matrices: implications for the interpretation of otolith chemistry 
A. McFadden, B. Wade, C. Izzo, B. M. Gillanders, C. E. Lenehan and A. Pring

The aim of this study was to investigate the role of otolith biomineralisation in the relationship between otolith chemistry and microstructure at a fine scale in order to understand the mechanism of elemental uptake. The results indicate that strontium incorporation may be assisted, in part, by the organic composition during otolith mineralisation, which potentially has implications for the interpretation of otolith strontium.

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Published online 27 November 2015
Role of palaeoecology in describing the ecological character of wetlands 
C. Max Finlayson, Stewart J. Clarke, Nick C. Davidson and Peter Gell

The Ramsar Convention on Wetlands has requested advice on the determination of reference conditions for assessing change and establishing the range of natural variability of wetlands. Palaeoecological approaches provide a ready means of considering the trajectories of change, and the nature and drivers of change over time, and can be used along with contemporary techniques.

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Published online 24 November 2015
Otolith chemistry discriminates water mass occupancy of Arctic fish in the Chukchi Sea 
Christine M. Gleason, Brenda L. Norcross and Karen J. Spaleta

Chemical signatures in fish otoliths have the potential to reconstruct fish movement patterns and habitat use of Arctic marine fish. A fish occupying different demersal habitats resulted in 76% correct classification of Arctic (or Polar) cod and 82% for Arctic staghorn sculpin into the habitat from which fish were captured. Chemical signatures were affected by water temperature, fish age and fish length.

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Published online 24 November 2015
Potential sources of red snapper (Lutjanus campechanus) recruits estimated with Markov Chain Monte Carlo analysis of otolith chemical signatures 
Beverly K. Barnett, William F. Patterson, Todd Kellison, Steven B. Garner and Alan M. Shiller

Little information is available about the occurrence, distribution or habitat utilisation of red snapper juveniles in US Atlantic Ocean waters. Otolith chemical constituents were used to parameterise Markov Chain Monte Carlo models as a first-step approach in addressing questions about potential nursery sources contributing recruits to red snapper (Lutjanus campechanus) in waters from southern Florida to North Carolina.

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Published online 24 November 2015
Lead–radium dating of Pacific cod (Gadus macrocephalus) – validation of the young-fish scenario 
Allen H. Andrews

Estimates of age and growth are important to fish stock assessments aimed at fishery sustainability, but for Pacific cod (Gadus macrocephalus) longevity varies by a factor of 3. One scenario describes a slow-growing fish with a lifespan exceeding 30 years, while the other is fast growing to a maximum age near 10 years. Lead–radium dating revealed that the old-fish scenario is not valid.

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Published online 24 November 2015
Estuarine fishes of the South Alligator River, Kakadu National Park, northern Australia 
Bradley J. Pusey, Mark J. Kennard, Helen K. Larson, Quentin Alsop, Michael Hammer and Duncan J. Buckle

The estuarine fish fauna of the South Alligator River was sampled by beam trawl in both wet and dry seasons. Species richness was greatest in the lower estuary and more species were detected during the wet season. Temporal change in assemblage structure was associated with seasonal variation in discharge concordant with changes in salinity and productivity. Sciaenidae and Engraulidae dominated species richness and abundance overall although the species involved changed between seasons.

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Published online 23 November 2015
Colonisation patterns of supralittoral arthropods in naturally stranded wrack debris on Atlantic sandy beaches of Brazil and Spain 
M. Carmen Ruiz-Delgado, Jenyffer Vierheller Vieira, M. José Reyes-Martínez, Carlos Alberto Borzone, Raimundo Outerelo, Juan Emilio Sánchez-Moyano and Francisco José García-García

Marine subsidies represent a key element for the maintenance of biodiversity and functioning of sandy beaches. The colonisation patterns of macroinvertebrates associated with detached seaweed and mangrove propagules was investigated on Atlantic beaches. Marine subsidies were promptly invaded by a wide range of species, but a directional replacement was not detected. The results suggest that the colonisation process is driven by organic-debris characteristics and biological strategies of the species.

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Published online 23 November 2015
Spatio-temporal spawning patterns of two riverine populations of the threatened Macquarie perch (Macquaria australasica) 
Zeb Tonkin, Joanne Kearns, Justin O'Mahony and John Mahoney

This study presents an important first description of spatio-temporal spawning patterns of two riverine Macquarie perch Macquaria australasica populations in south-eastern Australia. Spawning intensity was highly variable between sample sites, and displayed a strong positive association with water temperature. Our results provide opportunity for further testing of the environmental effects, habitat associations and subsequent management options aimed at enhancing spawning of this endangered species.

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Published online 06 November 2015
First evidence of multiple paternity in the bull shark (Carcharhinus leucas) 
Agathe Pirog, Sébastien Jaquemet, Marc Soria and Hélène Magalon

The present study reveals the occurrence of multiple paternity in the bull shark (Carcharhinus leucas) showing high paternal skew. These results tend to support the hypothesis of convenience polyandry. This study contributes to a better understanding of this species reproduction and are important for both shark conservation and management plans.

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Published online 06 November 2015
Identifying the drivers of the pelagic ecosystem of an oligotrophic bight (KwaZulu–Natal, South Africa) using stable isotopes (δ13C, δ15N) and C:N ratio analysis 
Ander M. de Lecea, Rachel Cooper and Albertus J. Smit

This study aims to understand the biological drivers of KwaZulu–Natal Bight, South Africa, which until now were believed to be oceanographic. Particulate material and zooplankton were collected from marine and riverine environments. Rivers were extremely important for biological communities close to shore in the wet season. In the dry season and offshore this was not the case. Highlighting the role of terrestrial particulate matter to the marine environment.

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Published online 06 November 2015
Validation of the first annual increment deposition in the otoliths of European anchovy in the Bay of Biscay based on otolith microstructure analysis 
Naroa Aldanondo, Unai Cotano, Paula Álvarez and Andrés Uriarte

Traditionally, the age of the European anchovy has been determined on the basis of interpretation of annual growth increments. Based on otolith microstructure analysis, this study confirms that the first annulus is composed of an opaque band, which is deposited during spring and summer, and a translucent band, which is formed during autumn and winter. Consequently, the study validates age determination based on these structures and shows that otolith macrostructure analysis is a reliable tool for age determination of anchovy.

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Published online 06 November 2015
Where do elements bind within the otoliths of fish? 
Christopher Izzo, Zoë A. Doubleday and Bronwyn M. Gillanders

The element composition of fish ear bones (otoliths) is used extensively to reconstruct environmental histories of fish. Determining where elements are incorporated within otoliths is imperative to improving interpretations based on otolith chemistry. This study sought to determine whether elements were incorporated into the protein or mineral components of otoliths and the relative proportion of each element in each component.

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Published online 04 November 2015
Can tributary in-flows improve the recovery of the dissolved organic carbon regime in a snowmelt river regulated by a large reservoir? 
Ann-Marie Rohlfs, Simon M. Mitrovic, Simon Williams and Daniel Coleman

In regulated rivers, tributary organic matter inputs can make a particularly important contribution to the energetic resource base. We examined dissolved organic carbon dynamics below a large reservoir, and found that tributary carbon inputs to the main-stem were detectable but reduced by upstream diversions of tributary water. Our study is an example of the growing consideration of dissolved organic carbon in environmental water delivery and river rehabilitation.

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Published online 04 November 2015
New diagnostics for multiply stressed marine and freshwater ecosystems: integrating models, ecoinformatics and big data 
D. J. Baird, P. J. Van den Brink, A. A. Chariton, K. A. Dafforn and E. L. Johnston

Marine and freshwater ecosystem degradation is invariably associated with the presence of multiple stressors. A workshop held in Sydney, Australia, in September 2014 explored the application of new ecosystem observation technologies, and how their systematic application can support improved understanding of the complex causes of ecosystem change, and humanity’s role as a significant driver of that change.

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Published online 04 November 2015
Assessment of a metaviromic dataset generated from nearshore Lake Michigan 
Siobhan C. Watkins, Neil Kuehnle, C. Anthony Ruggeri, Kema Malki, Katherine Bruder, Jinan Elayyan, Kristina Damisch, Naushin Vahora, Paul O'Malley, Brieanne Ruggles-Sage, Zachary Romer and Catherine Putonti

Recent research has determined that bacteriophages (viruses that infect bacteria), play a crucial role in environmental processes. However, phage diversity is understudied in freshwater environments. The current study utilises data collected from extracting DNA directly from the environment, and begins to examine the phage community in Lake Michigan. The research finds that, within the lake, phages are highly diverse, but also highlights the importance of combined methodological approaches.

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Published online 04 November 2015
Evaluating the hydrological, geothermal and anthropic factors in the Baños tarn (Spanish Pyrenees) 
Z. Santolaria, T. Arruebo, A. Pardo, C. Rodriguez-Casals, F. J. Lanaja and J. S. Urieta

Baños tarn is a low-altitude Pyrenean glacial lake with both geothermal and surface influxes, and significant local anthropic stressors. Hydrological changes affecting lake tributaries are the foremost factors driving seasonal changes in the ionic composition of the lake, determined by a slightly alkaline pH and a medium–high ionic content, whereas resuspension of organic matter and nutrients trapped in floor sediments by a long history of untreated waste water input is the main nutrient source for the Baños tarn water mass.

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Published online 04 November 2015
Trophic positions and predator–prey mass ratio of the pelagic food web in the East China Sea and Sea of Japan 
Seiji Ohshimo, Hiroshige Tanaka, Koh Nishiuchi and Tohya Yasuda

Predator–prey mass ratio (PPMR) and trophic positions of the pelagic food web in the East China Sea and the Sea of Japan were estimated by using the stable isotope ratios (δ15N). The PPMRs based on additive and scaled models were respectively 5032 and 3430. The comparatively high PPMRs could reflect low ecosystem transfer efficiency and high metabolic rate.

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Published online 04 November 2015
Marine and estuarine phylogeography of the coasts of south-eastern Australia 
D. J. Colgan

Factors such as areas of unsuitable habitat, physical geography, ocean currents and sea surface temperatures explain many features of the phylogeography of the coasts of south-eastern Australia. More research is needed to explain how genetic variation can remain partitioned after barriers to gene flow are dissolved, to understand the phylogeographic effects of biotic interactions and to elucidate the cause(s) of population genetic instability frequently observed within both marine and estuarine species.

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Published online 04 November 2015
Seasonal variability in turbidity currents in Lake Ohau, New Zealand, and their influence on sedimentation 
R. Cossu, A. L. Forrest, H. A. Roop, G. B. Dunbar, M. J. Vandergoes, R. H. Levy, P. Stumpner and S. G. Schladow

This paper reports observations of turbidity currents and internal waves made in 2012–13 in Lake Ohau, New Zealand. Sediment input from river inflow occurs throughout the year but exhibits strong seasonal variation. We utilise these observations to establish a conceptual model to explain the observed infill stratigraphy in Lake Ohau and guide interpretation of the longer sedimentary record.

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Published online 04 November 2015
Finding the needle in the haystack: comparing sampling methods for detecting an endangered freshwater fish 
Mark Lintermans

Accurately detecting the presence of threatened species is vital for effective conservation management. Investigation of the detection power of six sampling methods for the endangered Macquarie perch found that fyke nets were far superior to all other methods. Some commonly used generic sampling methods had low detection efficiency, with such false negatives having serious implications for conservation management.

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Published online 04 November 2015
Carbon and nutrient subsidies to a lowland river following floodplain inundation 
Daryl L. Nielsen, Robert A. Cook, Nathan Ning, Ben Gawne and Rochelle Petrie

Inputs of terrestrial carbon and nutrients from floodplains into rivers is believed to be important to the functioning of lowland rivers. This study demonstrates that carbon in the form of dissolved organic carbon was the major component exported. However smaller amounts of carbon was also exported as invertebrates and algae that potentially could be readily incorporated into food webs

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Published online 27 October 2015
Unresolved diversity and monthly dynamics of eukaryotic phytoplankton in a temperate freshwater reservoir explored by pyrosequencing 
Thangavelu Boopathi and Jang-Seu Ki

Monthly dynamics of eukaryotic phytoplankton diversity and community structure in a freshwater reservoir were studied using small subunit ribosomal RNA (SSU) pyrosequencing. Molecular analyses represented a typical pattern of seasonal phytoplankton succession in temperate regions and this was denoted predominantly by diatoms, dinoflagellates, cryptophytes and chlorophytes. This work emphasises the importance of pyrosequencing in monitoring phytoplankton communities.

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    | Supplementary Material (1.4 MB)
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Published online 26 October 2015
Comparative dietary ecology of turtles (Chelodina burrungandjii and Emydura victoriae) across the Kimberley Plateau, Western Australia, prior to the arrival of cane toads 
N. N. FitzSimmons, P. Featherston and A. D. Tucker

We contrasted dietary ecology of two river turtles across four monsoonal river systems of the Kimberley Plateau in Western Australia. The study sites crossed a rainfall gradient and variable land use practices. The effects of biological invasion (short term), land use (medium term) and climate change (long term) affect the foraging habitats of turtles in these rivers. The dietary results offer a benchmark in before–after studies as invasive cane toads are expected to reach the study sites in 1–2 years.

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    | Supplementary Material (295 KB)
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Published online 26 October 2015
New parameterisation method for three-dimensional otolith surface images 
P. Marti-Puig, J. Danés, A. Manjabacas and A. Lombarte

This paper presents a new method for compacting data from three-dimensional (3-D) otolith shapes. These shapes are defined by means of clouds of points across their surfaces and they are finally represented by a small set of parameters able to capture 3-D information relevant to classification of fish species. The use of these new parameters provides a greater percentage of correctly classified specimens compared with those obtained from two-dimensional analysis.

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Published online 22 October 2015
Experimental effects of ash deposition on macroinvertebrate assemblages in peatland streams 
K. Johnston and B. J. Robson

The effects of ash from controlled fires on macroinvertebrate communities in UK headwater streams were investigated experimentally by depositing ash onto natural stream substrata in trays placed on streambeds. Ash deposition together with stream depth altered macroinvertebrate community composition. However, changes in species composition caused by ash deposition were smaller than differences among streams, suggesting that effects of ash may be small in these streams.

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Published online 22 October 2015
Big data opportunities and challenges for assessing multiple stressors across scales in aquatic ecosystems 
K. A. Dafforn, E. L. Johnston, A. Ferguson, C.L. Humphrey, W. Monk, S. J. Nichols, S. L. Simpson, M. G. Tulbure and D. J. Baird

Advances in computing speed, coupled with new earth observation technologies, have increased the use of molecular and remote sensing tools in monitoring. We critique a range of data types from these tools and explore how they can be used to assess ecosystem health. We highlight challenges, but also opportunities for these data sources to revolutionise monitoring in the future.

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Published online 22 October 2015
Image-enhanced burnt otoliths, bomb radiocarbon and the growth dynamics of redfish (Sebastes mentella and S. fasciatus) off the eastern coast of Canada 
Steven E. Campana, Alexandra E. Valentin, Shayne E. MacLellan and Joanne B. Groot

Many past attempts to age deep-water redfish (Sebastes mentella) and Acadian redfish (S. fasciatus) in the north-west Atlantic have been stymied by the use of inaccurate ageing methods, which have led to stock collapse in other deep-water species. Herein we report substantial improvements in methods for ageing Sebastes spp. through a combination of sectioning, burning and image enhancement. Bomb radiocarbon assays and microsatellite DNA confirmed both the accuracy of the ages and species identity, and demonstrated significant growth differences between both species and stocks to an age of 70 years.

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Published online 21 October 2015
Spatiotemporal dynamics of intermittent stream fish metacommunities in response to prolonged drought and reconnectivity 
Lucas J. Driver and David J. Hoeinghaus

Hydrological regimes are important drivers of community dynamics in intermittent streams. Investigation of stream fish communities from north Texas, USA, before, during and after a prolonged drought disturbance revealed that drought had significant impacts on fish abundance and diversity and population and community recovery. Continued alteration of stream habitats and changes in global climate may intensify future drought disturbances and have potentially large impacts on freshwater biodiversity at multiple scales.

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    | Supplementary Material (784 KB)
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Published online 21 October 2015
Otolith shape variation provides a marker of stock origin for north Atlantic bluefin tuna (Thunnus thynnus) 
Deirdre Brophy, Paula Haynes, Haritz Arrizabalaga, Igaratza Fraile, Jean Marc Fromentin, Fulvio Garibaldi, Ivan Katavic, Fausto Tinti, F. Saadet Karakulak, David Macías, Dheeraj Busawon, Alex Hanke, Ai Kimoto, Osamu Sakai, Simeon Deguara, Nouredinne Abid and Miguel Neves Santos

Otolith shape analysis discriminated between western and eastern Atlantic bluefin tuna with an accuracy of 83% and indicated that samples from known mixing areas in the east Atlantic and Mediterranean were predominantly of eastern origin. Otolith shape descriptors could be used in combination with other population markers to improve the accuracy of stock discrimination and estimation of mixing rates for Atlantic bluefin tuna.

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Published online 21 October 2015
Use of otolith quality flags to assess distributional dynamics in Baltic cod stocks 
Sven Stötera and Uwe Krumme

The mixing dynamics between the two Baltic Sea cod stocks are unclear. Analysis of spatiotemporal patterns in quality flag distribution of cod otoliths showed that the Darß and Drogden sills separated readable otoliths in shallow western waters from more unreadable otoliths in deeper eastern waters. There were no temporal trends suggesting stable mixing and no increased spillover from the east since 2007.

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   | Supplementary Material (2.9 MB)  |        Open Access Article
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Published online 21 October 2015
Emergent technologies and analytical approaches for understanding the effects of multiple stressors in aquatic environments 
A. A. Chariton, M. Sun, J. Gibson, J. A. Webb, K. M. Y. Leung, C. W. Hickey and G. C. Hose

Aquatic ecosystems are subject to multiple stressors. This paper extends the current Environmental Risk Assessment framework using environmental-genomic data to examine the effects of multiple stressors across multiple levels of biological organisation. We consider how these and other emerging data sources may be combined and analysed using new statistical approaches for disentangling the effects of multiple stressors.

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Published online 21 October 2015
Substrate mapping of three rivers in a Ramsar wetland in Jamaica: a comparison of data collection (hydroacoustic v. grab samples), classification and kriging methods 
Kurt Prospere, Kurt McLaren and Byron Wilson

The knowledge of the distribution of substrate sediments is crucial to understanding and managing wetland aquatic bodies. We tested the ability of a hydroacoustic system to discern and map substrates in three rivers from the largest wetland in Jamaica, by using various classification algorithms and interpolation methods. At a lower spatial resolution, comparable maps were obtained by interpolating discrete sample points acquired from grab samples.

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Published online 19 October 2015
Accumulation of sulfidic sediments in a channelised inland river system, southern Australia 
Vanessa N. L. Wong, Michael D. Cheetham, Richard T. Bush, Leigh A. Sullivan and Nicholas J. Ward

This study identified sulfidic sediments in reaches of an inland freshwater river in south-eastern Australia. Sulfidic sediments preferentially accumulated where coarse sandy bed material was found. Conversely, limited sulfidic sediment accumulated where bed material was clay or silt dominated. Sulfidic sediment accumulation was not limited to lower-energy parts of the channel highlighting the dynamism of the system.

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    | Supplementary Material (349 KB)
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Published online 19 October 2015
Lobster in a bottle: a novel technique for observing the predation of juvenile spiny lobster (Jasus edwardsii) 
Jan Hesse, Jenni A. Stanley and Andrew G. Jeffs

A novel approach was developed for observing attempted predation on live juvenile spiny lobster (Jasus edwardsii) by presenting the lobster in a transparent container that was lit with infrared light to enable continuous monitoring, by video recording. This technique can be used to provide valuable information on overall relative predation pressure from comparative locations and habitats, as well as identify potential predators.

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    | Supplementary Material (36 MB)
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Published online 13 October 2015
How does the management of rice in natural ponds alter aquatic insect community functional structure? 
Marina S. Dalzochio, Renata Baldin, Cristina Stenert and Leonardo Maltchik

Functional approaches improve the understanding of how ecological communities respond to environmental changes. We compared functional diversity of aquatic insects among natural ponds, and organic and conventional rice fields, and the highest functional redundancy and richness were observed in natural ponds. As organic rice fields showed some functional similarity with natural ponds, the ecological benefits of organic production are highlighted.

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    | Supplementary Material (142 KB)
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Published online 13 October 2015
Assessment of stocking effectiveness for Murray cod (Maccullochella peelii) and golden perch (Macquaria ambigua) in rivers and impoundments of south-eastern Australia 
Jamin Forbes, Robyn J. Watts, Wayne A. Robinson, Lee J. Baumgartner, Prue McGuffie, Leo M. Cameron and David A. Crook

Murray cod and golden perch have been released from government and private hatcheries since the late 1970s in response to large scale wild fishery declines. Assessing success of these long-term stocking programs has been limited. Hatchery-reared fish were marked with calcein prior to release. The contribution of marked Murray cod varied by 7–94% and 9–98% for marked golden perch with higher proportions of marked fish found in impoundments than rivers. The comparatively low proportion of marked fish in rivers suggests that these populations are primarily self-supporting through natural recruitment rather than artificial enhancement. Identifying self-sustaining fish populations, and conversely, those that are heavily reliant on stocking, will allow delivery of hatchery-reared fish to areas where they are most needed.

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Published online 13 October 2015
Contribution of stocked fish to riverine populations of golden perch (Macquaria ambigua) in the Murray–Darling Basin, Australia 
David A. Crook, Damien J. O'Mahony, Bronwyn M. Gillanders, Andrew R. Munro, Andrew C. Sanger, Stephen Thurstan and Lee J. Baumgartner

Most stocking of native fish is conducted without information on its effectiveness or impacts. We stocked chemically tagged golden perch (Macquaria ambigua) fingerlings in three rivers of the Murray–Darling Basin (MDB), Australia. Subsequent sampling found that stocked fish contributed 18–100% of year classes within each river, demonstrating the potential for artificial stocking to strongly influence the abundance and structure of golden perch populations in the MDB.

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Published online 13 October 2015
Repeated vertical movements of mature anguillid eels in a lake 
Yuuki Y. Watanabe, Takaomi Arai, Daniel Limbong, Yunober Mberato and Nobuyuki Miyazaki

Mature anguillid eels in Lake Poso, Indonesia, are found to repeat up-and-down movements in the water column (maximum depth, 77 m), with slower, less active descents with shallower postures, followed by faster, more active ascents with steeper postures. These characteristic movements might be owing to the eels’ internal motivation for continuous swimming in preparation for oceanic migration.

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Published online 13 October 2015
Physiological plasticity v. inter-population variability: understanding drivers of hypoxia tolerance in a tropical estuarine fish 
Geoffrey Mark Collins, Timothy Darren Clark and Alexander Guy Carton

Hypoxia is increasing in freshwater and estuarine systems globally, yet we know little about the ability for tropical fish to acclimate to this changing environment. This study investigated the acclimation potential of two geographically separated populations of barramundi (L. calcarifer) to fluctuating oxygen availability. Hypoxia tolerance improved similarly in both populations and was driven primarily by physiological plasticity, rather than inherent variability between populations.

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Published online 13 October 2015
Adaptive management in action: using chemical marking to advance fish recovery programs in the Murray–Darling Basin 
Lee Baumgartner
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Published online 07 October 2015
Large tropical fishes and their use of the nearshore littoral, intertidal and subtidal habitat mosaic 
Merritt E. Adkins, Colin A. Simpfendorfer and Andrew J. Tobin

Shallow-coastal habitat research has previously focussed on larvae and juvenile fish communities and their use of these habitats as nurseries. The current study focuses on sampling a mosaic of shallow-coastal habitats and identifying the large-bodied fish communities utilising these habitats. We suggest these habitats may provide multiple functions for large-bodied fish communities and new insight into the additional functions of shallow-coastal habitats.

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Published online 07 October 2015
Comparison of life histories of two deep-water sharks from eastern Australia: the piked spurdog and the Philippine spurdog 
Cassandra L. Rigby, Ross K. Daley and Colin A. Simpfendorfer

A tropical population of the piked spurdog was found to be smaller and older at maturity than temperate populations. The Philippine spurdog was late maturing and long lived at 27 years. Both species were slow growing with conservative life history traits that make them vulnerable to exploitation but, in the event of overfishing, the deeper-dwelling Philippine spurdog is likely to take longer to recover.

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    | Supplementary Material (217 KB)
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Published online 05 October 2015
How sensitive are invertebrates to riparian-zone replanting in stream ecosystems? 
Darren P. Giling, Ralph Mac Nally and Ross M. Thompson

Replanting native vegetation adjacent to agricultural streams aims to improve in-stream biodiversity but the capacity of such replanting to combat the effects of large-scale land-use change is unknown. We tested whether aquatic macroinvertebrates responded to streamside replanting, but found that whole-catchment factors were more important. Replanting in degraded areas may not restore aquatic biodiversity within decades, necessitating careful consideration of restoration aims and monitoring methods.

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    | Supplementary Material (138 KB)
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Published online 05 October 2015
Trajectory of an anthropogenically induced ecological regime shift in a New Zealand shallow coastal lake 
Marc Schallenberg and Émilie Saulnier-Talbot

Shallow coastal lakes are sensitive to human-induced environmental changes. Post-colonial land-use change and water level control in and around Wainono Lagoon, South Canterbury, New Zealand, transformed it from a clear, macrophyte-dominated freshwater state to a turbid, hypereutrophic brackish system with little or no macrophytes. This study illustrates how the palaeolimnological approach can provide useful knowledge to assist the management and safeguard of these vulnerable ecosystems.

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Published online 05 October 2015
The potential effects of anthropogenic climate change on evaporation from water storage reservoirs within the Lockyer Catchment, south-east Queensland, Australia 
Ryan McGloin, Hamish McGowan and David McJannet

This study examines the potential impacts of anthropogenic climate change on evaporation from small reservoirs in the Lockyer catchment in south-east Queensland, Australia. Future projections indicated that evaporation is expected to increase by ~6% by 2050. This predicted increase in evaporation, combined with expected reductions in rainfall and runoff, means that water resources may be significantly affected in the future.

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Published online 05 October 2015
Assessing spatial variation of seagrass habitat structure in New Caledonia: an integrated approach 
Andrew D. Irving, Emma L. Jackson and Rebecca A. Hendry

A novel integrated sampling method was used to score the structure of seagrass meadows in the New Caledonian lagoon. On average, meadows scored at 69/100, indicating ‘fair-to-good’ structure, although significant variation was evident among sites and appeared to reflect differences in wave exposure. The study shows the value of integrated sampling methods for rapid spatio-temporal comparisons that can provide early warning signs of habitat decline.

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    | Supplementary Material (23 KB)
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Published online 30 September 2015
Home-range size in juveniles of the temperate reef fish, the common triplefin (Forsterygion lapillum) 
Paul J. Mensink and Jeffrey S. Shima

The size of an organism's home range dictates the spatial scale on which ecological processes occur. Many reef fish have limited home-ranges and here, we quantify variability in the home-ranges of juveniles of an abundant reef fish in New Zealand, the common triplefin. Results suggest that individual space use becomes restricted when densities of neighbouring conspecifics surpass a critical threshold, which could reduce individual fitness in high density areas as well as shape the spatial distribution of juveniles across a population.

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Published online 30 September 2015
Zoobenthos are minor dietary components of small omnivorous fishes in a shallow eutrophic lake 
Natsuru Yasuno, Yuki Chiba, Yasufumi Fujimoto, Kentaro Shindo, Tetsuo Shimada, Shuichi Shikano and Eisuke Kikuchi

We analysed isotopic composition of small omnivorous fishes (smaller than ~100 mm long) to examine whether they integrate littoral, pelagic and benthic pathways in a shallow, eutrophic lake (Lake Izunuma, Japan). Five omnivorous fish relied mostly on epiphytic algae and zooplankton, whereas zoobenthos (larval chironomids) contributed little to their diets. Thus, in Lake Izunuma, omnivorous fishes incorporated both littoral and pelagic production into the food web, but rarely benthic production.

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Published online 28 September 2015
Interspecific differences in larval production and dispersal in non-migratory galaxiids: implications for metapopulation structure 
Peter E. Jones and Gerard P. Closs

Poorly understood larval recruitment and dispersal can drive fish population dynamics; we studied how interspecific life-history differences affected these processes in a group of closely related galaxiids. Consistent with a priori predictions, the larvae of ‘fast’ life-history species were abundant and dispersed widely, whereas 'slow' life-history species produced low numbers of larvae which were relatively sedentary. We discuss the implications of these findings for metapopulation structure and how these species interact with invasive salmonids.

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    | Supplementary Material (158 KB)
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Published online 28 September 2015
Microphytoplankton and ciliate communities’ structure and distribution in a stressed area of the south coast of Sfax, Tunisia (eastern Mediterranean Sea) 
Amira Rekik, Jannet Elloumi, Dorra Chaari and Habib Ayadi

The environmental parameters, microphytoplankton and ciliate communities in the area were studied in two seasons at 20 stations along the coast south of Sfax. The results showed that the environmental parameters indicated high nutrient levels. Seventy-eight microphytoplankton species and 58 ciliates species were identified in all stations. Some species reported in this study are commonly found in the stressed coastal waters.

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Published online 28 September 2015
Variation in morphology and life-history strategy of an exploited sparid fish 
D. M. Parsons, M. A. Morrison, B. M. Gillanders, K. D. Clements, S. J. Bury, R. Bian and K. T. Spong

Defining population units that balance productivity and yield is a fundamental aspect of resource management. We investigated the presence of groups of snapper with different life-history strategies within the Hauraki Gulf, New Zealand, using a range of techniques. Snapper collected from a known spawning area possessed distinct morphology and stable isotope ratios, suggesting the existence of a semi-pelagic group of snapper within the Hauraki Gulf stock.

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Published online 28 September 2015
Feeding ecology of two sympatric species of Acetes (Decapoda: Sergestidae) in Panguil Bay, the Philippines 
Ephrime B. Metillo, Emily E. Cadelinia, Ken-ichi Hayashizaki, Takashi Tsunoda and Shuhei Nishida

Krill-like shrimps A. erythraeus and A. intermedius live together in Panguil Bay, Philippines and have an overlapping diet of primarily zooplankton and detritus. However, they partition the feeding niche with differences in prey types, gut fullness over 24 h and among months, sources of plant detritus, and with A. erythraeus confined to more brackish waters and A. intermedius dwelling in more saline marine waters of the bay.

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Published online 28 September 2015
Marine and continental distribution and dynamic of the early spawning migration of twaite shad (Alosa fallax (Lacépède, 1803)) and allis shad (Alosa alosa (Linnaeus, 1758)) in the north-west of the Iberian Peninsula 
D. J. Nachón, M. Mota, C. Antunes, M. J. Servia and F. Cobo

The aim of the present study was to determine the distribution and migration of twaite and allis shad in the north-west of the Iberian Peninsula. To this end, official data records of marine landings were collected and freshwater field sampling campaigns were undertaken. Results show that both species exhibit a coastal distribution near the rivers where they spawn, namely the Minho and Ulla rivers.

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Published online 28 September 2015
Low diversity of helminth parasites in Sardina pilchardus and Engraulis encrasicolus (Clupeidae) from the Bay of Biscay 
Aurélie Dessier, Christine Dupuy, Thomas Trancart, Alexandre Audras, Paco Bustamante and Claudia Gérard

Studies of the parasitic helminths in Sardina pilchardus and Engraulis encrasicolus from the Bay of Biscay revealed the occurrence of only three species of nematodes in both fish species. This low diversity of helminth parasites, compared with the 39 and 15 taxa for S. pilchardus and E. encrasicolus respectively described throughout their distribution range, suggests a low free-living biodiversity in the Bay of Biscay, potentially indicative of stressed ecosystems.

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Published online 28 September 2015
Geographic distribution of the short-tailed river stingray (Potamotrygon brachyura): assessing habitat loss and fishing as threats to the world’s largest obligate freshwater elasmobranch 
Luis O. Lucifora, Santiago A. Barbini, Sabina Llamazares Vegh, Pablo A. Scarabotti, Facundo Vargas, Agustín Solari, Ezequiel Mabragaña and Juan M. Díaz de Astarloa

Freshwater elasmobranchs are threatened but little known. This paper shows that Potamotrygon brachyura is associated to large lowland rivers, and that most of its range in the Río de la Plata is subject to high levels of habitat modification, whereas in the Uruguay and Paraná basins fishing pressure is its main stressor. P. brachyura may function as an umbrella species.

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Published online 25 September 2015
Using palaeoecological and palaeoenvironmental records to guide restoration, conservation and adaptive management of Ramsar freshwater wetlands: lessons from the Everglades, USA 
Melanie Ann Riedinger-Whitmore

Paleoecological records show how climate, environmental factors and human activities influenced the origin and development of the Everglades, the largest Ramsar wetland in the USA. This review highlights research and describes how paleoecological data are used in restoration plans and ecological models for Everglades management. Paleoecological studies of Ramsar wetlands can enhance our understanding about properties that determine the ecological character of wetlands, and can guide restoration and conservation activities.

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Published online 21 September 2015
Comparative mitogenomic analyses reveal cryptic diversity of the bryozoan Bugula neritina Linnaeus, 1758, in the Yellow Sea 
Xin Shen, Mei Tian, Ka Hou Chu, Jin Feng Wang, Shuai Chen, Hui Lian Liu, Xiao Heng Zhao and Fang Qing Zhao

The mitochondrial genome of Bugula neritina sampled from Qingdao, China, was determined, and was compared with that of a specimen sampled from Taean Gun, South Korea. The results indicated that the two specimens are genetically distinct species. The new type from Qingdao is designated as Type Y, for its occurrence in the Yellow Sea. The geographical range of different types of B. neritina awaits further studies.

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    | Supplementary Material (558 KB)
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Published online 16 September 2015
A new tool in the toolbox for large-scale, high-throughput fisheries mark-recapture studies using genetic identification 
Russell W. Bradford, Peta Hill, Campbell Davies and Peter Grewe

Management procedures for high-value fisheries can be hampered by a lack of fishery-independent estimates of abundance and mortality. Traditionally these estimates have been derived in part with the use of tagging technologies. This paper provides a description of a new tagging technology which may allow managers to take advantage of fishery-independent gene tag technology within large-scale, high-throughput tagging programs.

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   | Supplementary Material (1.5 MB)  |        Open Access Article
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Published online 16 September 2015
High-resolution movements of critically endangered hawksbill turtles help elucidate conservation requirements in northern Australia 
Xavier Hoenner, Scott D. Whiting, Mark Hamann, Colin J. Limpus, Mark A. Hindell and Clive R. McMahon

Despite being critically endangered, the behaviour of hawksbill turtles remains poorly understood, especially for populations nesting in the Northern Territory, Australia. Satellite telemetry showed that adult females remain close to their rookery during the breeding period before migrating to feed in the Gulf of Carpentaria. National and international conservation efforts are required to mitigate human impacts including illegal tortoiseshell trade or seabed mining exploitation.

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Published online 10 September 2015
Population structure in a wide-ranging coastal teleost (Argyrosomus japonicus, Sciaenidae) reflects marine biogeography across southern Australia 
Thomas C. Barnes, Claudia Junge, Steven A. Myers, Mathew D. Taylor, Paul J. Rogers, Greg J. Ferguson, Jason A. Lieschke, Stephen C. Donnellan and Bronwyn M. Gillanders

Predatory scale-fish may be under pressure on a global scale due to anthropogenic forces; the legendary sciaenid Argyrosomus japonicus (mulloway, jewfish or kob) is no exception. Despite the species forming important fisheries much of its biology is poorly understood, we set out to alleviate this by investigating the genetic population structure at two levels, first, between South Africa and Australia and second, within Australia; our results report significant structuring. An understanding of the population structure of fish can help ensure a sustainable future

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    | Supplementary Material (395 KB)
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Published online 07 September 2015
Surviving under pressure and protection: a review of the biology, ecology and population status of the highly vulnerable grouper Epinephelus daemelii 
Malcolm P. Francis, David Harasti and Hamish A. Malcolm

Epinephelus daemelii is a threatened grouper species restricted to the south-western Pacific Ocean. Its biology, behaviour and limited habitat make it vulnerable to overfishing. Despite protection, incidental bycatch still occurs. Its abundance is low, except in remote regions with no fishing. Further prohibitions on fishing are likely to be important for the recovery and long-term survival of this species.

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Published online 07 September 2015
Spatial genetic subdivision among populations of the highly migratory black marlin Istiompax indica within the central Indo-Pacific 
Samuel M. Williams, Michael B. Bennett, Julian G. Pepperell, Jess A. T. Morgan and Jennifer R. Ovenden

Highly migratory marine fishes are often assumed to lack population structure due to the absence of physical barriers to gene flow. We used genetic markers to evaluate the population structure of the black marlin throughout the central Indo-Pacific. The nuclear markers revealed three contemporary populations that are likely driven by reproductive philopatry, whereas the mitochondrial markers identified pronounced historic clade structure.

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    | Supplementary Material (122 KB)
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Published online 04 September 2015
Using sedimentary diatoms to identify reference conditions and historical variability in shallow lake ecosystems in the Yangtze floodplain 
Xuhui Dong, Xiangdong Yang, Xu Chen, Qian Liu, Min Yao, Rong Wang and Min Xu

Reference condition and historical variability of aquatic ecosystems are key features of wetland systems. Based on diatom records from 10 Yangtze lakes, this study defined their ecological and chemical reference conditions, the historical variability and its controlling factors. This study demonstrates the robustness of palaeolimnological techniques in reconstructing the historical ecological characters of lake ecosystems, which may provide essential information for the management of wider types of wetland.

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Published online 04 September 2015
Widespread occurrence of coral diseases in the central Maldives 
Simone Montano, Giovanni Strona, Davide Seveso, Davide Maggioni and Paolo Galli

Coral diseases have been poorly studied in the Indian Ocean, and particularly in the Republic of Maldives. The results of this study represent the first comprehensive assessment of coral diseases in this archipelago and provide a useful baseline that can serve as a gauge for monitoring future change. The study reveals that large colonies are more susceptible to coral diseases than small ones, and that the dominant genus Acropora hosts the highest number of diseased colonies.

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    | Supplementary Material (235 KB)
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Published online 04 September 2015
Developing a habitat classification typology for subtidal habitats in a temperate estuary in New South Wales, Australia 
Tom R. Davis, David Harasti and Stephen D. A. Smith

Effective estuarine management depends on adequate data about habitats. This study presents the first quantitative assessment of subtidal habitats within the Port Stephens estuary, using a methodology that was cost-effective and robust. We identified previously undocumented habitat types and found strong correlations between habitat types and depth.

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Published online 04 September 2015
Trophic relationships of the platypus: insights from stable isotope and cheek pouch dietary analyses 
Melissa Klamt, Jenny A. Davis, Ross M. Thompson, Richard Marchant and Tom R. Grant

As a top predator, the platypus has the potential to exert a strong top-down influence within riverine food webs. We utilised a combination of cheek pouch content analysis and stable isotope analysis to determine the platypuses' diet. Whereas the cheek-pouch content analysis identified the majority of the prey organisms, stable isotope analysis suggested that soft-bodied organisms (e.g. larval dipterans) are also a strong contributor to the platypuses' diet.

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Published online 01 September 2015
Tasman Sea biological response to dust storm events during the austral spring of 2009 
A. J. Gabric, R. Cropp, G. McTainsh, H. Butler, B. M. Johnston, T. O'Loingsigh and Dien Van Tran

The marine biological impact of ‘Red Dawn’ dust storm that affected eastern Australia during the spring of 2009 is examined. Dust transport modelling confirms this storm event deposited up to three times the average monthly amount of dust to the adjacent ocean. Phytoplankton biomass in the Tasman Sea increased significantly due to the atmospheric deposition of dust-associated nutrients.

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Published online 01 September 2015
Primacy of bottom-up effects on a butterflyfish assemblage 
Susannah M. Leahy, Garry R. Russ and Rene A. Abesamis

Understanding what factors determine the number and type of fish on coral reefs is important for effective management of these fragile systems. In this study, we compared the effects of habitat and predation on two major feeding types of butterflyfish, and found that live coral and macroalgae were the strongest determinants of butterflyfish abundance. These results encourage wider-scale management of coral reefs to promote coral health.

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Published online 31 August 2015
Assessing wetland degradation and loss of ecosystem services in the Niger Delta, Nigeria 
Ayansina Ayanlade and Ulrike Proske

Freshwater wetlands in the Niger Delta, Nigeria, are increasingly under threat from human activities. In the two studied wetlands substantial ecosystem service loss has occurred over the last ~30 years. These results highlight the need for better wetland conservation measures in Nigeria.

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Published online 31 August 2015
The Gippsland Lakes: management challenges posed by long-term environmental change 
Paul I. Boon, Perran Cook and Ryan Woodland

The Gippsland Lakes is one of the largest Ramsar-listed wetlands in south-eastern Australia. The ecology of the Lakes has changed markedly over the past 120+ years as a result of the permanent opening to the ocean at Lakes Entrance and the regulation of inflowing rivers. Sea-level rise will exacerbate these changes, and how to manage them is a daunting challenge to natural-resource managers.

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Published online 31 August 2015
Implications of environmental trajectories for Limits of Acceptable Change: a case study of the Riverland Ramsar site, South Australia 
Peter R. Newall, Lance N. Lloyd, Peter A. Gell and Keith F. Walker

Changing climate threatens to exacerbate impacts of water extraction upon Australia’s high value aquatic ecosystems. This study of the Riverland Ramsar site suggests that individually, climate change and water extraction will each change the ecological character of the site. Results suggest that future management of wetlands in south-eastern Australia will need to consider regional vulnerability, refuge prioritisation and ecological returns-on-water-investments.

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Published online 31 August 2015
High-resolution, multiproxy palaeoenvironmental changes recorded from Two Mile Lake, southern Western Australia: implications for Ramsar-listed playa sites 
C. Gouramanis, P. De Deckker, D. Wilkins and J. Dodson

Sedimentary records recovered from saline playa lakes offer unique opportunities to investigate environmental and climatic variation in arid and semi-arid zones. Multiproxy records and multiple dating techniques are applied to derive a very high resolution record of environmental and climatic variability from the Two Mile Lake playa in southern Western Australia. Palaeorecords can define environmental baseline conditions and variability that can be utilized in managing playa systems.

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    | Supplementary Material (543 KB)
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Published online 27 August 2015
Determining optimal sampling strategies for monitoring threatened endemic macro-invertebrates in Australia 
R. A. Rossini, R. J. Fensham and G. H. Walter

Australian artesian springs are hot spots for aquatic diversity but data deficiency hinders conservation efforts. This study compared existing study methods for sampling the diversity and abundance of macro-invertebrates in springs and found that diversity can be sampled rapidly and with little bias, yet abundance measures are sensitive to method. This means we can pool existing disparate data sources pertaining to diversity at a national scale, and offer an optimised strategy for all taxa encountered.

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    | Supplementary Material (185 KB)
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Published online 27 August 2015
The contribution of migratory mesopelagic fishes to neuston fish assemblages across the Atlantic, Indian and Pacific Oceans 
M. Pilar Olivar, J. Ignacio González-Gordillo, Jordi Salat, Guillem Chust, Andrés Cózar, Santiago Hernández-León, M. Luz Fernández de Puelles and Xabier Irigoien

The neuston is a rich environment inhabited by a large variety of species. Some myctophids (mesopelagic fishes) reach this layer during their night feeding migrations, constituting an important resource competitor for the neustonic-dwelling species. Surface temperature is the main environmental variable shaping the distribution of neustonic species, whereas myctophids are also influenced by the minimum oxygen concentrations in the water column.

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Published online 27 August 2015
Biology of a marine estuarine-opportunist fish species in a microtidal estuary, including comparisons among decades and with coastal waters 
Lauren J. Veale, Peter G. Coulson, Norman G. Hall and Ian C. Potter

This study explored the benefits to a marine fish species of using both estuaries and nearshore coastal waters as nursery habitats. The abundance, growth and reproductive status of Pelates octolineatus in a large estuary are thus compared with those in marine waters. Many individuals use the estuary for an extended period and grow faster there than in coastal marine waters.

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Published online 27 August 2015
Identification of human-made physical barriers to fish passage in the Wet Tropics region, Australia 
Frederieke J. Kroon and Seonaid Phillips

Physical barriers in streams and rivers can deny fish access to habitat and food beyond these structures. This study identified a total of 3748 bridges, culverts and causeways in Australia’s Wet Tropics region that could potentially be barriers to fish passage. This inventory provides a first step in the prioritisation of potential barriers for removal and remediation to improve native fish movement and fisheries production

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Published online 27 August 2015
Reproductive pattern and sexual system of the nocturnal seagrass shrimp Ambidexter symmetricus (Decapoda: Caridea: Processidae) in a Florida bay 
Jennifer A. Rasch and Raymond T. Bauer

The goal of our research was to analyse the reproductive ecology and sexual system in a nocturnal seagrass shrimp. We found sex ratios support a gonochoric sexual system, seasonal breeding with successive spawns, sexual dimorphism and that the interaction of time of year, shrimp sex and parasite presence influenced shrimp size. This data support hypotheses about latitudinal trends in other marine species.

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Published online 27 August 2015
Patterns of shelter use and their effects on the relative survival of subadult California spiny lobster (Panulirus interruptus) 
Amalia M. Harrington and Kevin A. Hovel

The California spiny lobster is an ecologically and economically important species on southern California rocky reefs. We used manipulative experiments to determine how sheltering behaviors observed on naturally-occurring reefs influence the survival of subadult lobsters. Our study is the first to demonstrate the survival benefit of selecting shelters based on the size, and not just the presence, of other lobsters.

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Published online 27 August 2015
A comparison of the physiological responses, behaviour and biotransformation of paralytic shellfish poisoning toxins in a surf-clam (Paphies donacina) and the green-lipped mussel (Perna canaliculus) 
Islay D. Marsden, Andrea M. Contreras, Lincoln MacKenzie and Murray H.G. Munro

Paralytic shellfish poisoning (PSP) occurs when people consume shellfish containing algal toxins known as saxitoxins. Both surf clams and green-lipped mussels readily accumulate these toxins. After 8 days of detoxification, toxin concentrations in the mussels had fallen, but in the clams, concentrations remained higher than was safe for human consumption. Mussels and clams can therefore be used to monitor the health risks associated with toxic algal blooms.

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Published online 06 August 2015
Spatio-temporal variability of the surf-zone fauna of two Ecuadorian sandy beaches 
Jose R. Marin Jarrin, Sandra L. Miño Quezada, Luis E. Dominguez-Granda, Sonnia M. Guartatanga Argudo and Maria del Pilar Cornejó R. de Grunauer

Sandy beaches and their surf-zones are the most common coastal habitat and are inhabited by diverse fauna, including economically important species. The present study described the small swimming-area fauna of two Ecuadorian sandy beaches and found that their communities varied most strongly between beaches, and less so between seasons, potentially due to the influence of adjacent rivers and oceanic currents. Our results suggest that despite the environmental stability often portrayed for tropical environments, Ecuadorian surf-zone fauna are spatially and temporally variable.

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    | Supplementary Material (417 KB)
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Published online 06 August 2015
Demersal chondrichthyans in the western Mediterranean: assemblages and biological parameters of their main species 
Sergio Ramírez-Amaro, Francesc Ordines, Bàrbara Terrasa, Antonio Esteban, Cristina García, Beatriz Guijarro and Enric Massutí

Demersal chondrichthyan assemblages were compared in four geographical subareas established by the General Fisheries Commission for the Mediterranean in the western Mediterranean. Present study revealed two assemblages related to depth, with similar bathymetric ranges in all subareas, namely continental shelf and slope. However diversity, abundance and biomass values were different between subareas which reflects the effects of the distinct fishing and oceanographic parameters.

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Published online 06 August 2015
Feeding dynamics of the fiddler crab (Uca annulipes) in a non-tidal mangrove forest 
N. Peer, N. A. F. Miranda, R. Perissinotto and J. L. Raw

Lack of tidal influence in estuarine habitats is predicted to increase globally but we do not yet understand the associated ecological consequences. Gut chlorophyll levels of a fiddler crab showed that feeding dynamics vary with season, time of day and between sexes in a non-tidal mangrove habitat. These results provide insight into the response of macrobenthos to environmental change.

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Published online 06 August 2015
Olfactory responses of coral-reef fishes to coral degradation and crown-of-thorns (Acanthaster planci) 
Amy G. Coppock, Naomi M. Gardiner and Geoffrey P. Jones

Coral degradation is a major threat toward coral-reef ecosystems, a factor that is likely to be problematic for species that exhibit specific habitat preferences. The ability of juvenile coral reef fishes to identify poor habitats, namely degraded coral and the presence of crown-of-thorns starfish, through smell was investigated. Whereas the crown-of-thorns elicited a limited response (unless feeding), the smell of degraded coral was actively avoided, such reactions are important for predicting ecosystem alterations resulting from environmental change.

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Published online 06 August 2015
Reproduction of French angelfish Pomacanthus paru (Teleostei: Pomacanthidae) and implications for management of the ornamental fish trade in Brazil 
Caroline Vieira Feitosa, Simone Marques, Maria Elisabeth de Araújo and Beatrice Padovani Ferreira

Pomacanthus paru is one of the most exported species in the Brazilian aquarium trade and is caught by traps as bycatch. This species was gonochoristic, exhibited size dimorphism and the size at maturity of females was 23.30 cm. At the spawning stage, females may be more vulnerable to trap fishing. Management measures should consider implementing trap-free areas in spawning grounds.

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Published online 06 August 2015
Influence of oceanic fronts on mesozooplankton abundance and grazing during spring in the south-western Atlantic 
Rubens M. Lopes, Catarina R. Marcolin and Frederico P. Brandini

Oceanic fronts are often considered as sites of enhanced biological production, influencing fish stocks and the global carbon cycle. We evaluated zooplankton biomass and grazing across a latitudinal gradient in the South-west Atlantic Ocean, and found that subtropical and subpolar frontal areas have higher zooplankton activity than surrounding waters. Our results suggest that these frontal systems have a significant effect on zooplankton, ultimately affecting deep-water carbon sequestration.

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Published online 06 August 2015
Comparison of in situ and satellite sea surface-temperature data from South Australia and Tasmania: how reliable are satellite data as a proxy for coastal temperatures in temperate southern Australia? 
B. Stobart, S. Mayfield, C. Mundy, A. J. Hobday and J. R. Hartog

Studies of marine life increasingly use sea-surface temperature from satellites assuming it represents conditions in the water column, yet this assumption has rarely been tested. We compared satellite and water column temperatures spanning a wide geographic range across southern Australia and found they were generally similar, but can differ considerably depending on local conditions. Therefore, although satellite temperatures should be adequate for many broad-scale studies, they should be validated prior to using in finer-scale studies.

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Published online 06 August 2015
Population dynamics of a high-latitude coral Alveopora japonica Eguchi from Jeju Island, off the southern coast of Korea 
Christophe Vieira, Shashank Keshavmurthy, Se-Jong Ju, Kiseong Hyeong, Inah Seo, Chang-Keun Kang, Hyun-Ki Hong, Chaolun Allen Chen and Kwang-Sik Choi

The coral Alveopora japonica in Jeju Island, South Korea, has increased in number over past decades and has encroached upon the macroalgal substrates affecting both the presence of macroalgae and abalone populations, which feed on macroalgae. To assess the dynamics the population increase, population-ecology studies of this coral was conducted from two locations at north and south of the Island. Population-age and -size structures at both sites reflected a healthy status and indicated a local stability, with a stationary size structure allowing population maintenance over time. The present study provided data to develop population-dynamics models to predict the potential outcomes of A. japonica populations to alternative management scenarios in Jeju Island.

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    | Supplementary Material (147 KB)
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Published online 06 August 2015
Morphologically similar, coexisting hard corals (Porites lobata and P. solida) display similar trophic isotopic ratios across reefs and depths 
Jeremiah G. Plass-Johnson, Christopher D. McQuaid and Jaclyn M. Hill

Few studies have accounted for morphology when comparing interspecific differences in the isotopic values of corals. In this study we show that the δ13C and δ15N values of Porites lobata and P. solida have few differences across reefs and depths. This suggests that resource partitioning among corals is mostly driven by resource acquisition, rather than being inherently species-specific.

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    | Supplementary Material (191 KB)
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Published online 31 July 2015
Patterned fen formation and development from the Great Sandy Region, south-east Queensland, Australia 
Patrick Moss, John Tibby, Felicity Shapland, Russell Fairfax, Philip Stewart, Cameron Barr, Lynda Petherick, Allen Gontz and Craig Sloss

This paper examines formation and development of the only known subtropical, Southern Hemisphere patterned fen wetlands from Fraser Island, Queensland, through the examination of swamp sediments and fossil pollen. The development of these globally important wetlands occurs within the broader Wire Rush wetlands, which formed from 12 000 years ago and are important refuge areas for the region’s unique animals.

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Published online 31 July 2015
A Ramsar-wetland in suburbia: wetland management in an urbanised, industrialised area 
S. J. Kermode, H. Heijnis, H. Wong, A. Zawadzki, P. Gadd and A. Permana

Towra Point Nature Reserve, in Sydney’s Botany Bay, is an internationally important wetland which is at risk due to human activities. This research aimed to check whether contamination from industry and urbanisation of the region have had negative impact, and found that levels of arsenic, lead and zinc are elevated on the southern side of the embayment. We propose that trigger levels outlined in water and sediment quality guidelines should be included in the Towra Point Plan of Management, so that elevated levels will initiate a management response from relevant authorities.

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    | Supplementary Material (51 KB)
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Published online 29 July 2015
First data on the age, growth and sexual maturity of the piked spurdog, Squalus megalops (Chondrichthyes: Squalidae), in the Gulf of Gabès (central Mediterranean Sea) 
Sondes Marouani, Hasna Kadri and Mohamed Nejmeddine Bradai

The occurrence of Squalus megalops in the Gulf of Gabès (central Mediterranean Sea) is recently confirmed; life cycle of this shark is crucial for its conservation. Thus, growth, longevity, natural mortality and size and age at maturity of, are reported. The data approve that S. megalops have a k-strategy in its life history.

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Published online 23 July 2015
Muddy waters: the influence of high suspended-sediment concentration on the diving behaviour of a bimodally respiring freshwater turtle from north-eastern Australia 
Jason R. Schaffer, Mark Hamann, Richard Rowe and Damien W. Burrows

This study represents the first investigation into the impact of elevated suspended sediment concentrations on the diving behaviour of a bimodally respiring, freshwater turtle (Elseya irwini). Our data demonstrate that increased suspended sediment directly affects the utilisation of aquatic respiration by this species to extend submergence times under optimal conditions. These observations raise concerns about the effects of erosion and catchment land management practices, on the long term sustainability of physiologically specialised freshwater turtle populations.

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Published online 22 July 2015
The effects of growth anomaly on susceptibility of Montipora capitata to turf algal overgrowth 
D. C. Claar and M. Takabayashi

Disease affects not only the biological function of coral, but it may also affect the ability of corals to compete with other species in their environment. This study evaluated the effect of growth anomalies (GAs) on the susceptibility of the coral M. capitata to algal overgrowth. The relationship between GA and algal overgrowth was weak, implying that other factors (e.g. environmental conditions) are driving this interaction.

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Published online 21 July 2015
Wandering wetlands: spatial patterns of historical channel and floodplain change in the Ramsar-listed Macquarie Marshes, Australia 
Timothy J. Ralph, Paul P. Hesse and Tsuyoshi Kobayashi

Natural channel change has caused parts of the Macquarie Marshes to be abandoned in the 20th Century and other wetland areas to form. Historical analysis shows that natural wetland changes lead to anachronistic conservation reserve boundaries where reserves include only a small portion of the floodplain. Adaptive management is required to recognise the natural dynamics of floodplain wetlands within static conservation reserve systems.

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    | Supplementary Material (18 KB)
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Published online 21 July 2015
Novel method for shark age estimation using near infrared spectroscopy 
C. L. Rigby, B. B. Wedding, S. Grauf and C. A. Simpfendorfer

Reliable age information is vital for effective shark fisheries management, yet traditional ageing has some limitations. Near infrared spectroscopy (NIRS) was investigated as an alternative approach using vertebrae from the great hammerhead and the spot-tail shark, the ages of which were validated to 10 years. NIRS successfully predicted their ages, is rapid and could be used to age large numbers of sharks quickly.

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Published online 21 July 2015
Algal composition and biomass in the tropical soda lake Chitu with focus on seasonal variability of Arthrospira fusiformis (Cyanophyta) 
Tadesse Ogato, Demeke Kifle and Brook Lemma

Functions of tropical soda lakes depend heavily on algae, particularly Arthrospira, which are the basis for understanding their ecological integrity. This study, which aimed at investigating the algal dynamics in one of the fragile tropical soda lakes, revealed the occurrence of considerable seasonality of algal biomass and Arthrospira abundance following changes in environmental factors. This suggests that algal seasonality may greatly affect the values of soda lakes.

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Published online 21 July 2015
Typhoon effects on phytoplankton responses in a semi-closed freshwater ecosystem 
Chia-Ying Ko, Chao-Chen Lai, Tzong-Yueh Chen, Huang-Hsiung Hsu and Fuh-Kwo Shiah

The effects of typhoons upon freshwater ecosystem remain unclear. We analysed a 2-year time series of phytoplankton responses with typhoon events and found a significantly increased phytoplankton response both during the typhoon periods and during the non-typhoon periods occurring between two typhoons. Given that phytoplankton plays an important role in assimilating CO2 and contributes to the sinking of atmospheric CO2 to the bottom of the water column, typhoon-induced phytoplankton blooms may additionally serve to mitigate local warming under climate change.

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Published online 21 July 2015
Reproductive biology of an endemic amphidromous goby, Cotylopus acutipinnis, from La Réunion Island 
Nils Teichert, Pierre Valade, Alexis Fostier, Henri Grondin and Philippe Gaudin

Amphidromous species represent a substantial part of freshwater fish diversity throughout the Indo-Pacific region, but knowledge of their life-history traits remains scarce. The reproductive biology of an endemic goby was investigated highlighting a high reproductive effort with multiple opportunities of spawning regulated by environmental cues. Knowledge of these demographic traits is essential for evaluate the species resilience and improve management strategy of insular rivers.

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Published online 21 July 2015
Aspects of the reproductive biology of dusky, spinner and sandbar sharks (Family Carcharhinidae) from the Tasman Sea 
Pascal T. Geraghty, William G. Macbeth and Jane E. Williamson

Declining shark stocks have emphasised the need for a greater understanding of commercially targeted species. Here we assess the reproductive biology of dusky, spinner and sandbar sharks in eastern Australian waters, where all three were found to be late maturing and of low reproductive output, indicative of a low resilience to fishing pressure. This research reinforces the importance of locally-derived parameters for stock assessment.

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    | Supplementary Material (244 KB)
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Published online 13 July 2015
Relative importance of physical and biological factors regulating tintinnid populations: a field study with frequent samplings in Sendai Bay, Japan 
Takehiro Kazama and Jotaro Urabe

Temporally high-frequency sampling was performed to examine rapid changes in the community composition of estuarine tintinnid ciliates. The dominant tintinnid species changed largely within several days due to changes in environmental and biological conditions. However, most tintinnid species were less vulnerable to predation pressure by copepods probably because there were many alternate prey to these predators.

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    | Supplementary Material (74 KB)
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Published online 09 July 2015
Assessing threats from coral and crustose coralline algae disease on the reefs of New Caledonia 
Greta Aeby, Aline Tribollet, Gregory Lasne and Thierry Work

Disease surveys on coral and crustose coralline algae were conducted on reefs in New Caledonia in 2010 and 2013. Thirty coral diseases affecting 15 coral genera were found with low overall disease prevalence (<1%). New host and biogeographic range extensions were found for several diseases including trematode infection in Porites. The potential ecological impact of individual coral diseases were assessed using an integrative scoring and relative ranking scheme.

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    | Supplementary Material (177 KB)
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Published online 09 July 2015
Phytoplankton dynamics in a subtropical tidal creek: influences of rainfall and water residence time on composition and biomass 
Susan Badylak, Edward Phlips, Nicole Dix, Jane Hart, Akeapot Srifa, Daniel Haunert, Zenli He, Jean Lockwood, Peter Stofella, Detong Sun and Yaugen Yang

Concerns about global climate change have heightened the role changing rainfall regimes play in altering plankton communities. In this study spatial and temporal patterns of phytoplankton composition and biomass in a sub-tropical tidal creek in Florida were observed over three wet and dry seasons. The results are discussed within the context of how variability in rainfall influence water residence times, nutrient concentrations and salinity regimes, which in turn influence phytoplankton.

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Published online 09 July 2015
A data-driven method for selecting candidate reference sites for stream bioassessment programs using generalised dissimilarity models 
P. M. Rose, M. J. Kennard, F. Sheldon, D. B. Moffatt and G. L. Butler

Selecting reference sites in highly modified landscapes is a key challenge for stream bioassessment practitioners. In this case study, generalised dissimilarity modelling was used to model fish species turnover as a function of GIS-based environmental variables to delineate ‘ecotypes’, identify influential human pressure variables and define and map candidate reference conditions. The method is transparent, indicator-specific and efficient, and complements existing procedures for defining reference conditions.

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    | Supplementary Material (219 KB)
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Published online 06 July 2015
Human impacts on connectivity in marine and freshwater ecosystems assessed using graph theory: a review 
Megan I. Saunders, Christopher J. Brown, Melissa M. Foley, Catherine M. Febria, Rebecca Albright, Molly G. Mehling, Maria T. Kavanaugh and Dana D. Burfeind

Humans are affecting how plants and animals move among their ecosystems. We reviewed studies that have analysed how humans affect the movement of plants and animals among river, lake and ocean habitats. Our review reveals that a wide range of human activities sometimes can similar affects on plant and animal movement, which suggests there are some common strategies managers can use to conserve plants and animals.

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    | Supplementary Material (275 KB)
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Published online 01 July 2015
DNA barcoding Australian macroinvertebrates for monitoring programs: benefits and current short comings 
Michael Shackleton and Gavin N. Rees

Molecular methods are gaining recognition as an improved approach to identify freshwater macroinvertebrates for research and monitoring programs, but are not applied widely in Australia. We applied DNA barcoding to specimens collected as part of monitoring programs and found that barcode data gave considerable informational benefit on macroinvertebrates. However, a lack of available sequence data for Australian freshwater fauna limited the scope of interpretation.

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    | Supplementary Material (134 KB)
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Published online 01 July 2015
Zinc and nickel binary mixtures act additively on the tropical mysid Mysidopsis juniae 
Lívia Pitombeira de Figuerêdo, Jeamylle Nilin, Allyson Queiroz da Silva, Évila Pinheiro Damasceno, Susana Loureiro and Letícia Veras Costa-Lotufo

Chemicals usually appear in the environment as mixtures. The aim of the present study was to assess nickel and zinc toxicity to Mysidopsis juniae and evaluate if their joint effects could be predicted by their single toxicity. Nickel showed to be more toxic than zinc and their mixture an additivity pattern. The present study highlights the need to assess combined effects in environmental scenarios.

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Published online 29 June 2015
Comparative assessment of aquatic macroinvertebrate diversity in irrigated rice fields and wetlands through different spatial scales: an additive partitioning approach 
Mateus Marques Pires, Carla Bender Kotzian, Marcia Regina Spies and Vanessa dos Anjos Baptista

Rice field and wetland macroinvertebrate beta diversity was compared at multiple spatial scales. In wetlands, hydrographic basin scale contributed the most to γ diversity. In rice fields, local different management practices were more important to diversity, which tends to homogenisation at broader scales. At least under drought climate conditions (ENSO phenomenon), only a small fraction of wetland community, mainly active dispersal taxa, was capable of colonising rice fields.

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Published online 29 June 2015
Age and growth dynamics of spiny dogfish, Squalus acanthias, in the Adriatic Sea (Eastern Mediterranean Sea) 
Romana Gračan, Scott A. Heppell, Gordana Lacković and Bojan Lazar

We provide first demographic parameters for endangered Mediterranean subpopulation of spiny dogfish, a commercially exploited mesopredatory shark, highly sensitive to overfishing. Our results, coming from the eastern Mediterranean basin (Adriatic Sea), suggest that the species exhibits extreme life history traits with low growth coefficients, very late sexual maturity and long life span, which intensify its vulnerability to overexploitation. This study provides critical data necessary to develop efficient, species-specific conservation strategy for the spiny dogfish in the region.

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Published online 23 June 2015
The hypoxia that developed in a microtidal estuary following an extreme storm produced dramatic changes in the benthos 
James R. Tweedley, Chris S. Hallett, Richard M. Warwick, K. Robert Clarke and Ian C. Potter

Runoff from an extreme storm led to the formation of a pronounced halocline and underlying hypoxia in the upper reaches of the microtidal Swan–Canning Estuary. The survival of annelids and loss of crustaceans during this time reflects the different sensitivities of these taxa. The results emphasise that microtidal estuaries are highly vulnerable to the effects of environmental perturbations.

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Published online 23 June 2015
Estimating the dynamics of spawning aggregations using biological and fisheries data 
André E. Punt, David C. Smith, Malcolm Haddon, Sarah Russell, Geoffrey N. Tuck and Tim Ryan

Acoustic surveys can estimate the biomass of marine fishes, but need to account for turnover of fish during the spawning season. A model is developed that estimates turnover based on changes in age, size and sex during the season. It can estimate the average proportion of the spawning biomass on the spawning grounds at any point in time.

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Published online 22 June 2015
Triggering larval settlement behaviour and metamorphosis of the burrowing ghost shrimp, Lepidophthalmus siriboia (Callianassidae): do cues matter? 
Kácia Letícia de Noronha Campos, Fernando Araújo Abrunhosa and Darlan de Jesus de Brito Simith

Larval settlement and metamorphosis of many decapod species are triggered by physicochemical cues from the parental estuarine habitat. Here, we investigated whether the burrowing ghost shrimp (Lepidophthalmus siriboia) megalopae are stimulated by substrata and chemical cues from conspecific adults. Megalopal settlement and burrowing behaviour were induced by substrata, whereas metamorphosis to juvenile occurred irrespective of the presence or type of exogenous cues. Furthermore, megalopae developed significantly faster in the absence than the presence of substrata or conspecific stimuli. The independence of metamorphosis-stimulating cues shows important for colonisation and recovery of exploited callianassid populations.

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Published online 22 June 2015
Distribution and trophic dynamics of riparian tetragnathid spiders in a large river system 
Paradzayi Tagwireyi and S. Mažeika P. Sullivan

Riparian tetragnathid spiders are important components of river–riparian food webs. We assessed the influence of riparian habitat and emergent aquatic insects on tetragnathids along the Scioto River, OH, USA. We show that nearshore physical and biological characteristics can lead to alterations in tetragnathid distribution and trophic dynamics and their capacity to serve as a functional linkage between aquatic and terrestrial ecosystems.

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Published online 22 June 2015
The effect of elevated CO2 on autotrophic picoplankton abundance and production in a eutrophic lake (Lake Taihu, China) 
Shengnan Li, Jian Zhou, Lijun Wei, Fanxiang Kong and Xiaoli Shi

This is the first in situ seasonal study to investigate how freshwater autotrophic picoplankton responses to CO2 changes. CO2 elevation could significantly increase the abundance of photosynthetic picoeukaryotes in all seasons except winter, but did not have any influence on picocyanobacterial abundance. This might cause a reduction of the transfer of matter and energy to higher trophic levels and an increase the importance of the microbial food web under high CO2 levels.

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    | Supplementary Material (69 KB)
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blank image Marine and Freshwater Research
Volume 67 Number 2 2016

 
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Variability of the carbonate chemistry in a shallow, seagrass-dominated ecosystem: implications for ocean acidification experiments 
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Roberta C. Challener , Lisa L. Robbins and James B. McClintock
pp. 163-172

Few studies have characterised the carbonate chemistry of nearshore coastal zones. Over multiple timescales, we measured the pH and calculated the pCO2 of an area dominated by seagrass beds (Saint Joseph Bay, Florida). Our results indicate that diel fluctuations should be considered when designing ocean acidification experiments and that coastal species are experiencing far greater fluctuations in carbonate chemistry than previously thought.

   |        Open Access Article
 

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Phosphorus speciation, transformation and retention in the Three Gorges Reservoir, China 
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Xiang-bin Ran , Hong-tao Chen , Jun-feng Wei , Qing-zhen Yao , Tie-zhu Mi and Zhi-gang Yu
pp. 173-186

Phosphorus is vulnerable to the artificial lake, and sensitive to aquatic ecosystems. Phosphorus dynamics in a huge reservoir should be well documented, and the Three Gorges Reservoir exerts important influence on phosphorus speciation and transport. This study will improve our understanding of the mechanisms and processes responsible for the effect of artificial lake with a unique gradual mode of impoundment.

 
  
 

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Electrosensory-driven feeding behaviours of the Port Jackson shark (Heterodontus portusjacksoni) and western shovelnose ray (Aptychotrema vincentiana) 
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R. M. Kempster , C. A. Egeberg , N. S. Hart and S. P. Collin
pp. 187-194

Interspecific variation in the elasmobranch electrosensory system remains poorly understood and as a result the functional consequences of such variation are unknown. Here, we directly tested the electrosensitivity of two benthic elasmobranchs that share a similar habitat and diet, but differ significantly in their electrosensory system morphology. The results suggest that differences in abundance and distribution of electrosensory pores have little to no effect on the absolute electrical sensitivity, and instead, may reflect species-specific differences in the spatial resolution and directionality of electroreception.

 
  
 

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UV radiation effects on the embryos of anchoveta (Engraulis ringens) and common sardine (Strangomera bentincki) off central Chile 
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P. Vásquez , A. Llanos-Rivera , L. R. Castro and C. Fernandez
pp. 195-209

Observed levels of ultraviolet B (UVB) radiation off central Chile (36°S, 73°W) indicate that planktonic fish embryos from anchoveta (Engraulis ringens) and common sardine (Strangomera bentincki) were exposed to harmful UVB radiation levels, which in the field can cause a decrease in hatching success, embryonic malformations and changes in buoyancy.

 
  
 

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Historical water-plant occurrence and environmental change in two contrasting catchments 
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Michelle T. Casanova
pp. 210-223

Water-plant distribution is determined (in part) by water regime and salinity, so we can infer historical water regime and salinity from historical plant distribution. It was found that there were more records of drought-and salinity-tolerant plants along the Angas River and Tookayerta Creek in present-day surveys than in the past. Plant distribution, coupled with a knowledge of plant ecological requirements, can be informative about environmental conditions.

 
  
 

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Relationship between otolith chemistry and age in a widespread pelagic teleost Arripis trutta: influence of adult movements on stock structure and implications for management 
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Julian M. Hughes , John Stewart , Bronwyn M. Gillanders , Damian Collins and Iain M. Suthers
pp. 224-237

Otolith chemistry analyses coupled with a strong latitudinal age gradient in the south-east Australian Arripis trutta population indicate that most fish originate in southern NSW, Victoria and Tasmania and move progressively northward with increasing age. Some recruitment occurs in northern NSW but these fish may not mix with immigrants from further south until they are more than 5 years old.

 
  
 

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Diversity partitioning of a phytoplankton community in semiarid salterns 
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Raiane S. Costa , Joseline Molozzi , Luiz U. Hepp , Renato M. Rocha and José E. L. Barbosa
pp. 238-245

This study was conducted in three salterns, with the goal to evaluate the diversity partitioning of phytoplankton along the saline gradient. At higher scales, the highest species richness was found between salt marshes; however, there was lower diversity and a decrease in similarity from the lower to the higher scale.

 
  
 

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Substrate type affects the abundance and size of a coral-reef sponge between depths 
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Alan R. Duckworth
pp. 246-255

Sponges on coral reefs generally grow on large pieces of rock or on smaller rubble pieces that are more easily moved by water flow. Investigating the interaction of substrate stability and water flow, this study found that sponges were most abundant and grew largest on rock, particularly at shallow depths where flow rates are highest. Natural and man-made factors that change substrate composition of coral reefs will affect numbers and sizes of sponges.

 
  
 

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Distribution and spatial modelling of a soft coral habitat in the Port Stephens–Great Lakes Marine Park: implications for management 
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Davina E. Poulos , Christopher Gallen , Tom Davis , David J. Booth and David Harasti
pp. 256-265

This study explored the distribution of an uncommon soft coral species (Dendronephthya australis) within the Port Stephens–Great Lakes Marine Park. D. australis colonies occurred along the southern shoreline in the Port Stephens estuary, but no colonies were found within marine park sanctuary (no-take) zones. Owing to its current threats, implications from this study will assist future management, particularly in regard to its protection within a marine park.

 
  
 

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Genetic analyses reveal declining trends and low effective population size in an overfished South African sciaenid species, the dusky kob (Argyrosomus japonicus) 
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Luca Mirimin , Brett Macey , Sven Kerwath , Stephen Lamberth , Aletta Bester-van der Merwe , Paul Cowley , Paulette Bloomer and Rouvay Roodt-Wilding
pp. 266-276

Overfishing has led to the collapse of many marine fish stocks. In this study, genetic markers were utilised to investigate population structure and genetic relatedness in an overfished South African fish species, the dusky kob. Results showed low genetic structuring and declining population trends, which should be taken into account for future management and conservation of depleted dusky kob populations.

 
  
 

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These articles have been peer reviewed and accepted for publication. They are still in production and have not been edited, so may differ from the final published form.

    MF15434  Accepted 04 February 2016
    The distribution, significance and vulnerability of Australian rhodolith beds: a review
    Adela Harvey, Robert Harvey, Eve Merton
    Abstract


    MF15257  Accepted 03 February 2016
    Negative effects of stagnation and drought on benthic invertebrate communities in lowland streams
    Liliana Garcia, Isabel Pardo
    Abstract


    MF16006  Accepted 30 January 2016
    Genetic analyses reveal limited dispersal and recovery potential in the large freshwater crayfish Euastacus armatus from the southern Murray-Darling Basin
    Nicholas Whiterod, Sylvia Zukowski, Martin Asmus, Dean Gilligan, Adam Miller
    Abstract


    MF15092  Accepted 30 January 2016
    Validation of age determination using otoliths of the European anchovy (Engraulis encrasicolus L.) in the Bay of Biscay.
    Andrés Uriarte, Iñaki Rico, Begoña Villamor, Erwan Duhamel, Clara Dueñas Liaño, Naroa Aldanondo, Unai Cotano
    Abstract


    MF15386  Accepted 29 January 2016
    Low functional redundancy and high variability in Sargassum browsing fish populations in a subtropical reef system
    Ben Gilby, Ian Tibbetts, Tim Stevens
    Abstract


    MF15382  Accepted 28 January 2016
    Restoring dissolved organic carbon subsidies from floodplains to lowland river food webs: a role for environmental flows?
    Darren Baldwin, Matt Colloff, Simon Mitrovic, Nick Bond, Ben Wolfenden
    Abstract


    MF15376  Accepted 25 January 2016
    25-year longevity for European hake (Merluccius merluccius) from novel use of bomb radiocarbon dating in the Mediterranean Sea
    Sergio Vitale, Allen Andrews, Pietro Rizzo, Salvatore Gancitano, Fabio Fiorentino
    Abstract


    MF15355  Accepted 22 January 2016
    Genetic relationships between landlocked and coastal populations of Lycengraulis grossidens (Engraulidae) in Southeastern South-America: evidences for a continental colonization route with secondary transitions to the coastal region
    Ana Mai, Lizandra Robe, Luis Marins, João Vieira
    Abstract


    MF15071  Accepted 19 January 2016
    Increased spreading potential of the invasive Pacific oyster (Crassostrea gigas) at its northern distribution limit in Europe due to warmer climate
    Eli Rinde, Torulv Tjomsland, Dag Hjermann, Magdalena Kempa, Pia Norling, Venkat Kolluru
    Abstract


    MF15369  Accepted 17 January 2016
    Biology of angel sharks (Squatina sp.) and sawsharks (Pristiophorus sp.) caught in south-eastern Australian trawl fisheries and the New South Wales shark meshing (bather protection) program
    Vincent Raoult, Vic Peddemors, Jane Williamson
    Abstract


    MF15356  Accepted 16 January 2016
    Spatial and temporal variability of zooplankton-phytoplankton interactions in a large subtropical shallow lake dominated by non-toxic cyanobacteria
    Luana Rosa, Luciana Cardoso, Luciane Crosetti, David Marques
    Abstract


    MF15332  Accepted 12 January 2016
    Taking advantage of adaptations when managing threatened species within variable environments: the case of the dwarf galaxias Galaxiella pusilla (Teleostei, Galaxiidae)
    Rhys Coleman, Tarmo Raadik, Vincent Pettigrove, Ary Hoffmann
    Abstract


    MF15374  Accepted 12 January 2016
    Exploring nonstationary and scale-dependent relationships between walleye (Sander vitreus) distribution and habitat variables in Lake Erie
    Changdong Lliu, Rong Wan, Yan Jiao, Kein Reid
    Abstract


    MF15141  Accepted 12 January 2016
    Response of fish assemblage structure to changing flood/flow pulses in a large sub-tropical river
    Luis Espínola, Ana Rabuffetti, Elie Abrial, Mario Amsler, Martín Blettler, Aldo Paira, Nadson Simões, Luciano Santos
    Abstract


    MF15097  Accepted 07 January 2016
    Otolith Chemistry as an Indicator of Movements of Albacore (Thunnus alalunga) in the North Atlantic Ocean
    Igaratza Fraile, Haritz Arrizabalaga, Josu Santiago, Nicolas Goñi, Igor Arregi, Sonia de Madinabeitia, R Wells, Jay Rooker
    Abstract


    MF15032  Accepted 07 January 2016
    Daily growth patterns of juvenile and adult of the Peruvian anchovy (Engraulis ringens) in northern Chile.
    Francisco Cerna, Guido Plaza
    Abstract


    MF15155  Accepted 23 December 2015
    Otoliths as individual indicators – a reappraisal of the link between fish physiology and otolith characteristics
    Peter Grønkjær
    Abstract


    MF15296  Accepted 22 December 2015
    Direct and indirect impact of near-future pCO2 levels on zooplankton dynamics
    Cedric Meunier, Maria Algueró-Muñiz, Henriette Horn, Julia Lange, Maarten Boersma
    Abstract


    MF15212  Accepted 17 December 2015
    Spatial and temporal changes of prey fish assemblage structure in a hypersaline lagoon: the Coorong, South Australia
    Afzal Hossain, Qifeng Ye, Sophie Leterme, Jian Qin
    Abstract


    MF15095  Accepted 16 December 2015
    Quantitative food webs and invertebrates assemblages of a large River: a spatiotemporal approach in floodplain shallow lakes
    Débora Carvalho, Veronica Williner, Federico Giri, Carina Vaccari, Pablo Collins
    Abstract


    MF15201  Accepted 15 December 2015
    A technique for detection of larval fish in the digestive tract of predators by otolith marking
    Maria Gómez, Carlos Fuentes
    Abstract


    MF15231  Accepted 15 December 2015
    Mobilising fine sediment in a highly regulated upland snowmelt river using hydrological-scaled experimental floods
    Daniel Coleman, Simon Williams
    Abstract


    MF15398  Accepted 15 December 2015
    Provision of environmental flows promotes spawning of a nationally threatened diadromous fish
    Wayne Koster, Frank Amtstaetter, David Dawson, John Morrongiello, Paul Reich
    Abstract


    MF15295  Accepted 12 December 2015
    Comment: The composition and health of fishes in residual dry season habitats in southern Africa (Strauch et al. 2015)
    Brian Marshall, Albert Chakona, Denis Tweddle, Paul Skelton, Roger Bills, John Minshull
    Abstract


    MF15352  Accepted 10 December 2015
    Transport and Transformation of Dissolved Organic Matter in the Neuse River Estuarine System, NC USA following Hurricane Irene (2011)
    Richard Miller, Matthew Brown, Ryan Mulligan
    Abstract


    MF15347  Accepted 09 December 2015
    Modelling the distribution and density of the invasive seaweed Sargassum muticum (Fucales, Sargassaceae) in shallow subtidal areas
    Giulia Cambiè, Diana Fernández-Márquez, Ramón Muiño
    Abstract


    MF15377  Accepted 09 December 2015
    Strong genetic differentiation among the freshwater shrimp Caridina cantonensis in Hong Kong: implications for conservation of freshwater fauna in urban areas
    L Tsang, Kwok Ho Tsoi, Simon Kin-Fung Chan, Tony King-Tung Chan, Ka-Hou Chu
    Abstract


    MF15273  Accepted 09 December 2015
    Zooplankton Generation Following Inundation of Floodplain Soils: Effects of Vegetation Type and Riverine Connectivity
    Alicia Catlin, Kevin Collier, Ian Duggan
    Abstract


    MF15223  Accepted 08 December 2015
    Regional shifts in phytoplankton succession and primary productivity in the San Antonio Bay System (USA) in response to diminished freshwater inflows
    Daniel Roelke, Hsiu-Ping Li, Carrie Miller-DeBoer, George Gable, Stephen Davis
    Abstract


    MF15392  Accepted 03 December 2015
    Mangrove fishes of São Tomé Island (Gulf of Guinea): new occurrences and habitat usage
    Pedro Félix, Paula Chainho, Ricardo Lima, José Costa, Armando Almeida, Isabel Domingos, Ana Brito
    Abstract


    MF15186  Accepted 02 December 2015
    Genetic structure and unique origin of introduced blue mussel Mytilus galloprovincialis in the Northwestern Pacific: clues from mitochondrial COI sequences
    Zhiqiang Han, Yangli Mao, Bonian Shui, Takashi Yanagimoto, Tianxiang Gao
    Abstract


    MF15089  Accepted 01 December 2015
    Growth and formation of annual zones in whole otoliths of Greenland halibut, a slow-growing deepwater fish
    Ole Thomas Albert
    Abstract


    MF15102  Accepted 30 November 2015
    American eel (Anguilla rostrata) substrate selection for daytime refuge and winter thermal sanctuary
    Jared Tomie, David Cairns, Rod Hobbs, Marieve Desjardins, Garth Fletcher, Simon Courtenay
    Abstract


    MF15088  Accepted 01 December 2015
    Do Vertebral Chemical Signatures Distinguish Juvenile Blacktip Shark (Carcharhinus limbatus) Nursery Regions in the Northern Gulf of Mexico?
    Justin Lewis, William Patterson III, John Carlson, Katherine McLachlin
    Abstract


    MF15279  Accepted 20 November 2015
    Population dynamics and secondary production of gastropods on a sheltered beach in southeastern Brazil: a comparison between an herbivore and a scavenger
    Ricardo Cardoso, Tatiana Cabrini
    Abstract


    MF15286  Accepted 15 November 2015
    Increases in humic and bioavailable dissolved organic matter in a forested New England headwater stream with increasing discharge
    Henry Wilson, Peter Raymond, James Saiers, William Sobczak, Na Xu
    Abstract


    MF15407  Accepted 11 November 2015
    The urgent global need to understand port and harbour ecosystems
    Emma Johnston, Luke Hedge, Mariana Mayer Pinto
    Abstract


    MF15361  Accepted 10 November 2015
    Using eDNA sequencing for aquatic biodiversity surveys: a beginner’s guide
    Jennifer Shaw, Laura Weyrich, Alan Cooper
    Abstract


    MF15298  Accepted 10 November 2015
    Estimating the carbon biomass of marine net-phytoplankton from abundance based on samples from China seas
    Yang Yang, Xiao-xia Sun, Mingliang Zhu, Xuan Luo, Shan Zheng
    Abstract


    MF15052  Accepted 07 November 2015
    Testing otolith morphology for measuring marine fish biodiversity
    Victor Tuset, Marc Farré, José Otero-Ferrer, José Vilar, Beatriz Morales-Nin, Antoni Lombarte
    Abstract


    MF15065  Accepted 10 September 2015
    Densities and biomass of larval Sea Lamprey populations (Petromyzon marinus Linnaeus, 1758) in North West Spain and data comparisons with other European regions
    Sergio Silva, Rufino Vieira-Lanero, Sandra Barca, Fernando Cobo
    Abstract


41


The Most Read ranking is based on the number of downloads from the CSIRO PUBLISHING website of articles published in the previous 12 months. Usage statistics are updated daily.

Rank Paper Details
1. Published 5 November 2015
Long-term ecological trends of flow-dependent ecosystems in a major regulated river basin

Matthew J. Colloff, Peter Caley, Neil Saintilan, Carmel A. Pollino and Neville D. Crossman

2. Published 27 April 2015
Age and growth of the white shark, Carcharodon carcharias, in the western North Atlantic Ocean

Lisa J. Natanson and Gregory B. Skomal

3. Published 29 July 2015
Marine plastic pollution: using community science to address a global problem

Paul. E. Duckett and Vincenzo Repaci

4. Published 22 May 2015
Repairing Australia's estuaries for improved fisheries production – what benefits, at what cost?

Colin Creighton, Paul I. Boon, Justin D. Brookes and Marcus Sheaves

5. Published 16 December 2015
The 'Great Southern Reef': social, ecological and economic value of Australia's neglected kelp forests

Scott Bennett, Thomas Wernberg, Sean D. Connell, Alistair J. Hobday, Craig R. Johnson and Elvira S. Poloczanska

6. Published 27 April 2015
The influence of an offshore artificial reef on the abundance of fish in the surrounding pelagic environment

Molly E. Scott, James A. Smith, Michael B. Lowry, Matthew D. Taylor and Iain M. Suthers

7. Published 29 June 2015
Does the telemetry technology matter? Comparing estimates of aquatic animal space-use generated from GPS-based and passive acoustic tracking

Ross G. Dwyer, Hamish A. Campbell, Terri R. Irwin and Craig E. Franklin

8. Published 29 June 2015
Geographic variation in long-term trajectories of change in coral recruitment: a global-to-local perspective

P. J. Edmunds, R. Steneck, R. Albright, R. C. Carpenter, A. P. Y. Chui, T.-Y. Fan, S. Harii, H. Kitano, H. Kurihara, L. Legendre, S. Mitarai, S. Muko, Y. Nozawa, J. Padilla-Gamino, N. N. Price, K. Sakai, G. Suzuki, M. J. H. van Oppen, A. Yarid and R. D. Gates

9. Published 29 July 2015
Evidence for a broad-scale decline in giant Australian cuttlefish (Sepia apama) abundance from non-targeted survey data

Thomas A. A. Prowse, Bronwyn M. Gillanders, Barry W. Brook, Anthony J. Fowler, Karina C. Hall, Michael A. Steer, Camille Mellin, N. Clisby, Jason E. Tanner, Tim M. Ward and Damien A. Fordham

10. Published 28 September 2015
River metabolism and carbon dynamics in response to flooding in a lowland river

Robert A. Cook, Ben Gawne, Rochelle Petrie, Darren S. Baldwin, Gavin N. Rees, Daryl L. Nielsen and Nathan S. P. Ning

11. Published 27 April 2015
Diversity in immature-shark communities along a tropical coastline

Peter M. Yates, Michelle R. Heupel, Andrew J. Tobin, Stephen K. Moore and Colin A. Simpfendorfer

12. Published 26 February 2015
Collaborative approaches to accessing and utilising historical citizen science data: a case-study with spearfishers from eastern Australia

Daniel C. Gledhill, Alistair J. Hobday, David J. Welch, Stephen G. Sutton, Matthew J. Lansdell, Mathew Koopman, Adrian Jeloudev, Adam Smith and Peter R. Last

13. Published 28 September 2015
Spatial and temporal habitat use by white sharks (Carcharodon carcharias) at an aggregation site in southern New Zealand

Malcolm P. Francis, Clinton Duffy and Warrick Lyon

14. Published 22 May 2015
Age and size compositions, habitats, growth and reproductive characteristics of a terapontid (Pelates octolineatus) in coastal waters

Lauren Veale, Peter Coulson, Norman Hall, Alex Hesp and Ian C. Potter

15. Published 22 May 2015
Movement patterns and habitat use of juvenile mangrove whiprays (Himantura granulata)

Lauren E. Davy, Colin A. Simpfendorfer and Michelle R. Heupel

16. Published 29 June 2015
Development of habitat prediction models to reduce by-catch of sailfish (Istiophorus platypterus) within the purse-seine fishery in the eastern Pacific Ocean

Raul O. Martinez-Rincon, Sofia Ortega-Garcia, Juan G. Vaca-Rodriguez and Shane P. Griffiths

17. Published 24 March 2015
Sublethal effects of fluctuating hypoxia on juvenile tropical Australian freshwater fish

Nicole Flint, Michael R. Crossland and Richard G. Pearson

18. Published 24 November 2015
Sydney Harbour: what we do and do not know about a highly diverse estuary

E. L. Johnston, M. Mayer-Pinto, P. A. Hutchings, E. M. Marzinelli, S. T. Ahyong, G. Birch, D. J. Booth, R. G. Creese, M. A. Doblin, W. Figueira, P. E. Gribben, T. Pritchard, M. Roughan, P. D. Steinberg and L. H. Hedge

19. Published 26 February 2015
Population genetic structure and demographic history of Pacific blue sharks (Prionace glauca) inferred from mitochondrial DNA analysis

Mioko Taguchi, Jacquelynne R. King, Michael Wetklo, Ruth E. Withler and Kotaro Yokawa

20. Published 24 November 2015
Sydney Harbour: a review of anthropogenic impacts on the biodiversity and ecosystem function of one of the world

M. Mayer-Pinto, E. L. Johnston, P. A. Hutchings, E. M. Marzinelli, S. T. Ahyong, G. Birch, D. J. Booth, R. G. Creese, M. A. Doblin, W. Figueira, P. E. Gribben, T. Pritchard, M. Roughan, P. D. Steinberg and L. H. Hedge


      
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