Register      Login
Marine and Freshwater Research Marine and Freshwater Research Society
Advances in the aquatic sciences

Marine and Freshwater Research

Marine and Freshwater Research

Marine and Freshwater Research is a multidisciplinary journal publishing original research and reviews on all aquatic environments and subject areas. Read more about the journalMore

Editor-in-Chief: Max Finlayson

Publishing Model: Hybrid. Open Access options available.

Are you eligible for APC-free Open Access?

Download our Journal Flyer (PDF, 1MB)


These articles are the latest published in the journal. Marine and Freshwater Research has moved to a continuous publication model. More information is available on our Continuous Publication page.

Fish in exploited populations tend to grow faster because they experience less density-dependent competition for resources. Faster-growing individuals mature younger or larger, potentially compensating for reproductive output lost because of fishing mortality. We compared growth in fished and unfished populations of Perth herring, a long-lived (20 years), anadromous fish endemic to south-western Australia. As hypothesised, fished populations displayed faster growth and earlier maturation. However, we suggest that faster growth does not fully compensate for the lower population resilience associated with a shortened lifespan in this species.

Published online 20 February 2024

MF23189The risky nightlife of undersized sea urchins

Jennifer E. Smith 0000-0001-5051-3769, Emma Flukes 0000-0003-2749-834X and John P. Keane 0000-0001-8950-5176

Longspined sea urchins form extensive barrens in south-eastern Australia. Despite the previous assumption that small, undersized sea urchins are cryptic and inaccessible to predators, we show that small urchins are in fact active and move around on open reef during the night. This behaviour puts them at risk of predation by nocturnal predators, such as lobsters. Knowledge about this predator–prey interaction will inform management and help control the urchin.

The Mediterranean fanworm is a highly invasive marine worm that is originally from Europe, but has also established and spread around parts of Australasia. To better understand the invasive capacity of this species, its maturation and reproduction were investigated and compared with those in previous studies. The results indicated that this fanworm has high reproductive flexibility, contributing to its invasive capacity.

Published online 05 February 2024

MF23144Impacts of necrotising disease on the Endangered cauliflower soft coral (Dendronephthya australis)

Rosemary Kate Steinberg 0000-0002-6153-2743, John Turnbull 0000-0002-8935-1012, Tracy D. Ainsworth 0000-0001-6476-9263, Katherine A. Dafforn 0000-0001-8848-377X, Alistair G. B. Poore 0000-0002-3560-3659 and Emma L. Johnston 0000-0002-2117-366X

Coral disease has caused coral declines globally, but we know little about how soft corals are affected. Here, we studied the effects of disease on an endangered soft coral by examining the disease microscopically, and by recording the loss and recovery of the population. We found that the disease harmed the corals and killed individual colonies, but that the population started recovering quickly. To improve conservation outcomes, we suggest that disease surveys should be included in monitoring and restoration efforts.

Published online 05 February 2024

MF23202The utility of otolith weight in growth studies of young-of-year bony bream (Nematalosa erebi), Australia’s most widespread freshwater fish

Oliver P. Pratt 0000-0001-7323-4594, Leah S. Beesley 0000-0003-4850-6388, Bradley J. Pusey 0000-0002-7446-7186, Daniel C. Gwinn 0000-0002-3633-0904, Chris S. Keogh, Samantha A. Setterfield 0000-0002-7470-4997 and Michael M. Douglas 0000-0003-3650-3374

The microstructure of calcium carbonate stones in the inner ear of young-of-year fish can be analysed to determine age, an expensive and time-consuming process. Ear stone weight can be used as a surrogate for age, but this relationship has yet to be validated for bony bream. The present study validates this relationship to facilitate the life-history characterisation of Australia’s most widespread freshwater fish.

Published online 05 February 2024

MF23088Age, growth and maturity of an endemic valuable resource, the Rio skate (Rioraja agassizii (Chondrichthyes: Rajiformes)), off Uruguay and northern Argentina

Santiago J. Bianchi 0000-0003-1782-8974, Jorge M. Roman 0000-0002-7455-8010, Luis O. Lucifora 0000-0002-1443-303X and Santiago A. Barbini 0000-0003-2922-828X

Rioraja agassizii is a vulnerable species endemic of the Southwest Atlantic and faces threats from trawl fisheries across its habitat. With a moderate growth rate and sexual maturity similar to other skates of its size, urgent action is needed. Skate species in Argentina differ in maximum ages, growth rates and maturity, highlighting the need for immediate species-specific management measures to protect these marine animals.

The seawater quality in the Dongji Island yellow croaker aquaculture area in Zhoushan, China, was assessed by the fuzzy comprehensive evaluation method. Seawater quality was better in 2019 than in 2020, with overall water quality classified as Class I in both years. However, there were variations in water quality among individual months in 2020. The fuzzy comprehensive evaluation method can be used in other regions to assess and manage seawater quality in aquaculture areas effectively.

This article belongs to the collection Ecological Monitoring and Assessment of Freshwater Ecosystems.

Published online 31 January 2024

MF22212Fluorescence in the estimation of chlorophyll-a in public water reservoirs in the Brazilian cerrado

Lucélia Souza de Barros 0000-0002-0837-3544, Tati de Almeida 0000-0002-6387-8254, Raquel Moraes Soares 0000-0003-3880-6248, Bruno Dias Batista, Henrique Dantas Borges 0000-0002-0729-5767 and Rejane Ennes Cicerelli 0000-0002-8199-5163

It was observed that the use of fluorimetric measurements is an excellent alternative for quantifying chlorophyll concentration. However, absolute fluorescence units offered by the available equipment are not always the best alternative. It is suggested in this research to use empirical models that relate field measurements with fluorimetic data through the use of relative fluorescence units.

Published online 31 January 2024

MF23207Rubber ramp and spat rope did not facilitate upstream passage of a galaxiid through a perched culvert

C. F. Baker 0000-0001-9480-4242, P. Williams, N. Pyper and P. A. Franklin 0000-0002-7800-7259

This study examined the passage efficiency of juvenile īnanga past a perched culvert fitted with spat ropes and a flexible rubber ramp. Less than 1% of fish successfully passed the ramp with no fish passing the culvert. Study results indicate that flexible rubber ramps are likely an ineffective fish passage solution for remediating perched culverts for weak swimming fishes.

Published online 29 January 2024

MF23179Early warning and monitoring of the safety risk of coastal nuclear power plant cold source under the stress from Phaeocystis globosa blooms

Jialin Ni 0000-0002-4951-6687, Hongyi Chen, Li Dai, Jianda Ji, Jing Lin and Tao Yu

In this study, a multifactor and multilayer comprehensive early risk-warning method was established to improve the timeliness and accuracy of risk warning for nuclear power plant operation under the stress of Phaeocystis globosa blooms.

This article belongs to the collection Ecological Monitoring and Assessment of Freshwater Ecosystems.

Published online 24 January 2024

MF23162Long-distance dispersal of the endangered Pacific nurse shark (Ginglymostoma unami, Orectolobiformes) in Costa Rica revealed through acoustic telemetry

Sergio Madrigal-Mora 0000-0002-9179-6862, Elpis J. Chávez, Randall Arauz 0000-0003-4907-0424, Christopher G. Lowe and Mario Espinoza

The Pacific nurse shark (Ginglymostoma unami) is an endangered species with a restricted distribution from Baja California to Perú. Although the movement ecology of Atlantic nurse sharks (G. cirratum) has been widely studied, this is the first attempt to describe a long-distance dispersal by the Pacific nurse shark. Using acoustic telemetry, we report the longest distance movement observed for the species. A male shark was observed travelling up to 460 km in 46 days along the Pacific coast of Costa Rica.

Pelagic longline fisheries developed bycatch mitigation measures, replacing J/tuna hooks and squid bait with circle hooks and whole-fish bait to reduce sea turtle bycatch. However, they overlooked the effects on other endangered species. Long-term data showed that circle hooks increased mouth-hooking in both target and bycatch species, proportional to their size. Although circle hooks with squid bait did not increase fishing mortality per unit effort (MPUE) for shortfin mako sharks, combining to whole-fish bait significantly increased MPUE. It highlights the need for quantitative assessments before implementing bycatch mitigation measures.

Published online 24 January 2024

MF23181Managing flows for frogs: wetland inundation extent and duration promote wetland-dependent amphibian breeding success

J. F. Ocock 0000-0002-3369-6038, A. Walcott, J. Spencer, S. Karunaratne, R. F. Thomas, J. T. Heath and D. Preston

Establishing the relationships between frogs and river flows that fill wetlands is important to guide the management of environmental water. Our study focused on the influence of flow and habitat on wetland frog breeding activity and breeding success. Although large areas of inundated wetland support high numbers of calling male frogs, wetlands also need sufficiently long inundation duration to increase breeding success.

This article belongs to the collection Environmental Flows in Northern Murray–Darling Basin.

Published online 17 January 2024

MF23187Impacts of VIE tagging and Rhodamine B immersion staining on two measures of performance for a small-bodied fish

P. A. Franklin 0000-0002-7800-7259, R. Crawford, W. B. van Ravenhorst and C. F. Baker 0000-0001-9480-4242

Improving fish passage is essential for the recovery of freshwater biodiversity. Mark–recapture methods are often used to measure the effectiveness of efforts to restore river connectivity. This study shows that the method used to mark fish can significantly affect estimates of passage efficiency for a small-bodied fish that is distributed widely in the Southern Hemisphere.

Published online 09 January 2024

MF23167The suitability of a dynamic coastal lake to support the diadromous fish Galaxias maculatus

Christopher G. Meijer 0000-0001-8058-1404, Michael J. H. Hickford 0000-0002-0275-6632, Duncan P. Gray and David R. Schiel

As a productive coastal lake, Te Waihora–Lake Ellesmere could potentially support a range of fisheries. However, because of its irregular opening schedule driven by flood management and severe environmental degradation, a persistent population of the widespread diadromous galaxiid, Galaxias maculatus, was unable to form within the lake and its network of tributaries.

Just Accepted

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.

Most Read

The Most Read ranking is based on the number of downloads in the last 60 days from papers published on the CSIRO PUBLISHING website within the last 12 months. Usage statistics are updated daily.

  1. A deep dive into the ecology of Gamay (Botany Bay, Australia): current knowledge and future priorities for this highly modified coastal waterway

    Marine and Freshwater Research 74 (12)
    T. P. Stelling-Wood 0000-0003-3970-4382, P. E. Gribben, G. Birch, M. J. Bishop, C. Blount, D. J. Booth, C. Brown 0000-0002-0210-1820, E. Bruce, A. B. Bugnot 0000-0001-6451-0307, M. Byrne, R. G. Creese, K. A. Dafforn, J. Dahlenburg, M. A. Doblin, T. E. Fellowes 0000-0001-8220-4581, A. M. Fowler, M. C. Gibbs, W. Glamore, T. M. Glasby, A. C. Hay, B. Kelaher 0000-0002-7505-4412, N. A. Knott, A. W. D. Larkum, L. M. Parker, E. M. Marzinelli 0000-0002-3762-3389, M. Mayer-Pinto, B. Morgan, S. A. Murray, M. J. Rees, P. M. Ross, M. Roughan, N. Saintilan 0000-0001-9226-2005, E. Scanes, J. R. Seymour, N. Schaefer, I. M. Suthers 0000-0002-9340-7461, M. D. Taylor, J. E. Williamson, A. Vila Concejo, R. J. Whittington, W. F. Figueira

Committee on Publication Ethics