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Type: Journal article
Title: Habitat separation of Craterocephalus (Atherinidae) species and populations in off-channel areas of the lower River Murray, Australia
Author: Wedderburn, S.
Walker, K.
Zampatti, B.
Citation: Ecology of Freshwater Fish, 2007; 16(3):442-449
Publisher: Munksgaard Int Publ Ltd
Issue Date: 2007
ISSN: 0906-6691
Statement of
S. D. Wedderburn, K. F. Walker, B. P. Zampatti
Abstract: Comparative studies of related species may reveal the determinants of distribution and abundance, and elucidate the causes of fragmentation. The intensively regulated River Murray in south-eastern Australia contains fragmented populations of several small fish species that have more common, widespread congeners. The Murray hardyhead Craterocephalus fluviatilis (McCulloch) (Atherinidae) has a wide but patchy distribution, whereas the unspecked hardyhead Craterocephalus stercusmuscarum fulvus (Ivantsoff, Crowley & Allen) has a similar range but is generally abundant. The two species rarely cohabit. Salinity and other aspects of `habitat complexity' appear to be key factors separating the species and associated fish assemblages, although this requires confirmation. The findings are discussed in the context of other studies of closely related species.
Keywords: fragmentation
habitat complexity
Description: © 2007 Blackwell Munksgaard The definitive version is available at
DOI: 10.1111/j.1600-0633.2007.00243.x
Appears in Collections:Aurora harvest 6
Earth and Environmental Sciences publications
Environment Institute publications

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