Marine and Freshwater Research Marine and Freshwater Research Society
Advances in the aquatic sciences
RESEARCH ARTICLE (Open Access)

Distribution, habitat and biology of a rare and threatened eastern Australian endemic shark: Colclough’s shark, Brachaelurus colcloughi Ogilby, 1908

Peter M. Kyne A E , Leonard J. V. Compagno B , Joanna Stead C , Micha V. Jackson D and Michael B. Bennett C
+ Author Affiliations
- Author Affiliations

A Tropical Rivers and Coastal Knowledge, Charles Darwin University, Darwin, NT 0909, Australia.

B Shark Research Center, Iziko – South African Museum, P.O. Box 61, Cape Town 8000, South Africa.

C School of Biomedical Sciences, The University of Queensland, St Lucia, Qld 4072, Australia.

D North Australian Indigenous Land and Sea Management Alliance, Charles Darwin University, Darwin, NT 0909, Australia.

E Corresponding author. Email: peter.kyne@cdu.edu.au

Marine and Freshwater Research 62(6) 540-547 https://doi.org/10.1071/MF10160
Submitted: 18 June 2010  Accepted: 22 November 2010   Published: 24 June 2011

Abstract

Despite increasing research effort and conservation focus on sharks, small species of little commercial value are often overlooked, although they make a considerable contribution to global diversity. The poorly known Colclough’s shark, Brachaelurus colcloughi, is naturally rare to uncommon and is encountered only irregularly. Collating all known records (n = 50), we review the species’ geographic and bathymetric distribution, habitat, reproductive biology and diet. All but four B. colcloughi records are from within a core distribution of <2° latitude on the Australian east coast. Bathymetric distribution is from less than 4 to 217 m depth, with all but three records from less than 100 m depth. The species shelters on rocky reefs during the day and is thought to forage nocturnally around reefs and adjacent substrates. B. colcloughi is viviparous, with litter sizes of 6–7. Mature males and females have been observed from 61.0- and 54.5-cm total length, respectively. Gravid females have been collected in austral winter months. Dietary analysis indicates a predominantly piscivorous diet. Our results are placed in the context of existing threats and future research and management directions, demonstrating that shark species with low abundances and restricted ranges, such as B. colcloughi, require a suite of management arrangements to ensure long-term population viability.

Additional keywords: bycatch, diet, Heteroscyllium, IUCN Red List, reproductive biology.


References

Camhi, M., Fowler, S., Musick, J., Bräutigam, A., and Fordham, S. (1998). Sharks and their relatives – ecology and conservation. Occasional Paper of the IUCN Species Survival Commission No. 20, Gland, Switzerland. Available at http://www.flmnh.ufl.edu/fish/organizations/ssg/shark2.pdf [Verified 14 March 2011].

Carraro, R., and Gladstone, W. (2006). Habitat preferences and site fidelity of the ornate wobbegong shark (Orectolobus ornatus) on rocky reefs of New South Wales. Pacific Science 60, 207–223.
Habitat preferences and site fidelity of the ornate wobbegong shark (Orectolobus ornatus) on rocky reefs of New South Wales.CrossRef |

Castro, J. I. (2000). The biology of the nurse shark, Ginglymostoma cirratum, off the Florida east coast and the Bahama Islands. Environmental Biology of Fishes 58, 1–22.
The biology of the nurse shark, Ginglymostoma cirratum, off the Florida east coast and the Bahama Islands.CrossRef |

Chidlow, J. (2003). The biology of wobbegong sharks (Family Orectolobidae) from south-western Australian waters. Masters Thesis, James Cook University, Townsville.

Compagno, L. J. V. (2001). ‘Sharks of the World. An Annotated and Illustrated Catalogue of Shark Species Known to Date. Volume 2. Bullhead, Mackerel and Carpet Sharks (Heterodontiformes, Lamniformes and Orectolobiformes).’ FAO Species Catalogue for Fishery Purposes. No. 1, Vol. 2. (FAO: Rome.)

Compagno, L. J. V., Last, P., and Stevens, J. (2005). Heteroscyllium colcloughi. In IUCN 2010. ‘IUCN Red List of Threatened Species (Version 2010.4).’ Available at http://www.iucnredlist.org [Verified 14 March 2011].

Cortés, E. (1997). A critical review of methods of studying fish feeding based on analysis of stomach contents: application to elasmobranch fishes. Canadian Journal of Fisheries and Aquatic Sciences 54, 726–738.
A critical review of methods of studying fish feeding based on analysis of stomach contents: application to elasmobranch fishes.CrossRef |

Dulvy, N. K., Baum, J. K., Clarke, S., Compagno, L. J. V., Cortés, E., et al. (2008). You can swim but you can’t hide: the global status and conservation of oceanic pelagic sharks and rays. Aquatic Conservation: Marine and Freshwater Ecosystems 18, 459–482.
You can swim but you can’t hide: the global status and conservation of oceanic pelagic sharks and rays.CrossRef |

Heupel, M. R., and Bennett, M. B. (1998). Observations on the diet and feeding habits of the epaulette shark, Hemiscyllium ocellatum (Bonnaterre), on Heron Island Reef, Great Barrier Reef, Australia. Marine and Freshwater Research 49, 753–756.
Observations on the diet and feeding habits of the epaulette shark, Hemiscyllium ocellatum (Bonnaterre), on Heron Island Reef, Great Barrier Reef, Australia.CrossRef |

Huveneers, C., Otway, N. M., Gibbs, S. E., and Harcourt, R. G. (2007). Quantitative diet assessment of wobbegong sharks (genus Orectolobus) in New South Wales, Australia. ICES Journal of Marine Science 64, 1272–1281..

Huveneers, C., Walker, T. I., Otway, N. M., and Harcourt, R. G. (2007). Reproductive synchrony of three sympatric species of wobbegong shark (genus Orectolobus) in New South Wales, Australia: reproductive parameter estimates necessary for population modelling. Marine and Freshwater Research 58, 765–777.
Reproductive synchrony of three sympatric species of wobbegong shark (genus Orectolobus) in New South Wales, Australia: reproductive parameter estimates necessary for population modelling.CrossRef |

Jennings, D. E., Gruber, S. H., Franks, B. R., Kessel, S. T., and Robertson, A. L. (2008). Effects of large-scale anthropogenic development on juvenile lemon shark (Negaprion brevirostris) populations of Bimini, Bahamas. Environmental Biology of Fishes 83, 369–377.
Effects of large-scale anthropogenic development on juvenile lemon shark (Negaprion brevirostris) populations of Bimini, Bahamas.CrossRef |

Johnson, J. W. (1999). Annotated checklist of the fishes of Moreton Bay, Queensland, Australia. Memoirs of the Queensland Museum 43, 709–762..

Joung, S.-J., Chen, C.-T., Clark, E., Uchida, S., and Huang, W. Y. P. (1996). The whale shark, Rhincodon typus, is a livebearer: 300 embryos found in one ‘megamamma’ supreme. Environmental Biology of Fishes 46, 219–223.
The whale shark, Rhincodon typus, is a livebearer: 300 embryos found in one ‘megamamma’ supreme.CrossRef |

Knip, D. M., Heupel, M. R., and Simpfendorfer, C. A. (2010). Sharks in nearshore environments: models, importance, and consequences. Marine Ecology Progress Series 402, 1–11.
Sharks in nearshore environments: models, importance, and consequences.CrossRef |

Kyne, P. M. (2008). Chondrichthyans and the Queensland East Coast Trawl Fishery: bycatch reduction, biology, conservation status and sustainability. Ph.D. Thesis, The University of Queensland, Brisbane.

Last, P. R., and Stevens, J. D. (2009). ‘Sharks and Rays of Australia’. 2nd edn. (CSIRO Publishing: Collingwood.)

Last, P. R., Pogonoski, J. J., and White, W. T. (2010). A new wobbegong shark, Orectolobus leptolineatus sp. nov. (Orectolobiformes : Orectolobidae), from the Western Central Pacific. In ‘Descriptions of New Sharks and Rays from Borneo’. (Eds P. R. Last, W. T. White and J. J. Pogonoski.) pp. 1–16. CSIRO Marine and Atmospheric Research Paper No. 032, Hobart. Available at http://www.cmar.csiro.au/docs/Descriptions-of-sharks-and-rays-from-Borneo-small.pdf [Verified 14 March 2011].

Marsh, N. (2003). The mysterious Colclough’s shark. Sportdiving Magazine 96, 28–30..

Parker, P. G. (1999). Fish assemblages at Julian Rocks and the adjacent waters of northern New South Wales, Australia. Australian Zoologist 31, 134–160..

Pinkas, L. M., Oliphant, S., and Iverson, I. L. K. (1971). Food habits of albacore, bluefin tuna and bonito in Californian waters. California Fish and Game 152, 1–105..

Pogonoski, J. J., Pollard, D. A., and Paxton, J. R. (2002). Conservation overview and action plan for Australian threatened and potentially threatened marine and estuarine fishes. Environment Australia, Canberra. Available at http://www.environment.gov.au/coasts/publications/marine-fish-action/pubs/marine-fish.pdf [Verified 14 March 2011].

QDPI&F (Queensland Department of Primary Industries and Fisheries) (2009). Annual status report 2008. East Coast Trawl Fishery. The State of Queensland, Department of Primary Industries and Fisheries, Brisbane.

Simpfendorfer, C. A., and Kyne, P. M. (2009). Limited potential to recover from overfishing raises concerns for deep-sea sharks, rays and chimaeras. Environmental Conservation 36, 97–103.
Limited potential to recover from overfishing raises concerns for deep-sea sharks, rays and chimaeras.CrossRef |

Small, C., and Nicholls, R. J. (2003). A global analysis of human settlement in coastal zones. Journal of Coastal Research 19, 584–599..

Stead, J. (2010). The biology and ecology of the brown-banded bamboo shark, Chiloscyllium punctatum and wobbegong sharks (Genus Orectolobus) in southeast Queensland, Australia. Ph.D. Thesis, The University of Queensland, Brisbane.

Stevens, J. D. (2007). Whale shark (Rhincodon typus) biology and ecology: a review of the primary literature. Fisheries Research 84, 4–9.
Whale shark (Rhincodon typus) biology and ecology: a review of the primary literature.CrossRef |

Stevens, J. D., Bonfil, R., Dulvy, N. K., and Walker, P. A. (2000). The effects of fishing on sharks, rays, and chimaeras (chondrichthyans), and the implications for marine ecosystems. ICES Journal of Marine Science 57, 476–494.
The effects of fishing on sharks, rays, and chimaeras (chondrichthyans), and the implications for marine ecosystems.CrossRef |

Stimson, R. J., and Taylor, S. P. (1999). City profile: Brisbane. Cities 16, 285–295.
City profile: Brisbane.CrossRef |

Suchanek, T. H. (1994). Temperate coastal marine communities: biodiversity and threats. American Zoologist 34, 100–114..

Taylor, S. (2007). Population structure and resource partitioning among Carcharhiniform sharks in Moreton Bay, Southeast Queensland, Australia. Ph.D. Thesis, The University of Queensland, Brisbane.

Walker, T. I. (2007). Spatial and temporal variation in the reproductive biology of gummy shark Mustelus antarcticus (Chondrichthyes : Triakidae) harvested off southern Australia. Marine and Freshwater Research 58, 67–97.
Spatial and temporal variation in the reproductive biology of gummy shark Mustelus antarcticus (Chondrichthyes : Triakidae) harvested off southern Australia.CrossRef |

Whitley, G. P. (1940). ‘The Fishes of Australia. Part 1. The Sharks, Rays, Devil-fish and Other Primitive Fishes of Australia and New Zealand.’ (Royal Zoological Society of New South Wales: Sydney.)

Williams, L. E. (Ed.) (2002). Queensland’s fisheries resources: Current condition and recent trends 1988–2000. Queensland Department of Primary Industries, Brisbane.


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