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Reef Fishes of the Althorpe Islands and Adjacent coasts of Central South Australia


Shepherd, SA and Edgar, GJ and Barrett, NS, Reef Fishes of the Althorpe Islands and Adjacent coasts of Central South Australia, Transactions of the Royal Society of South Australia, 129, (2) pp. 183-192. ISSN 0372-1426 (2005) [Refereed Article]


Reef fish populations were surveyed by visual census from 2-20 m depth at a range of sites at the Althorpe Is, Haystack I., and nearby mainland reference sites. Mean densities ranged mainly from 0.13-0.18 m-2, and comprised mainly benthic carnivores, herbivores and omnivores. Densities are comparable to those elsewhere in SE Australia, but much lower than those in the eastern Great Australian Bight. Forty fish species were recorded at Althorpe Is, 28 at Haystack I. and less at the other sites. Most species were too low in abundance to examine depth-related patterns, but the three most common species, blue-throated wrasse, herring cale and magpie perch, decreased in abundance with depth. The main faunal differences encountered were between mainland and island sites, and with depth. Biogeographically, the reef fish fauna was largely of widely ranging southern Australian temperate species, but included six species with SW Australian affinities, and three species with SE Australian affinities.

Item Details

Item Type:Refereed Article
Research Division:Agricultural and Veterinary Sciences
Research Group:Fisheries Sciences
Research Field:Aquatic Ecosystem Studies and Stock Assessment
Objective Division:Environment
Objective Group:Flora, Fauna and Biodiversity
Objective Field:Marine Flora, Fauna and Biodiversity
UTAS Author:Edgar, GJ (Professor Graham Edgar)
UTAS Author:Barrett, NS (Associate Professor Neville Barrett)
ID Code:38184
Year Published:2005
Web of Science® Times Cited:4
Deposited By:TAFI - Marine Research Laboratory
Deposited On:2005-08-01
Last Modified:2012-03-05

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