Mammal predation by an ariid catfish in a dryland river of Western Australia

Kelly, Erin, Travouillon, Kenny J., Keleher, James, Gibson-Kueh, Susan, and Morgan, David L. (2016) Mammal predation by an ariid catfish in a dryland river of Western Australia. Journal of Arid Environments, 135. pp. 9-11.

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Abstract

The presence of the spinifex hopping mouse Notomys alexis in the diet of lesser salmon catfish Neoarius graeffei from the Ashburton River, Western Australia, is reported for the first time. The consumption of terrestrial mammals by Australian freshwater fishes is widely considered to be an infrequent occurrence, of limited importance to aquatic food webs. However, remains of N. alexis were present within the stomachs of 44% of N. graeffei sampled, constituting approximately 95% of the total stomach contents. These findings suggest that N. graeffei will consume large quantities of terrestrial vertebrates when available, and may represent a valuable energy source for this ecologically important species in dryland rivers.

Item ID: 59118
Item Type: Article (Research - C1)
ISSN: 1095-922X
Keywords: Boom, Bust, Fish, Food web, Rodent, Terrestrial subsidies
Copyright Information: © 2016 Elsevier Ltd. All rights reserved.
Funders: Fisheries Research and Development Corporation (FRDC)
Projects and Grants: FRDC project 2012/050
Date Deposited: 14 Aug 2019 00:11
FoR Codes: 06 BIOLOGICAL SCIENCES > 0602 Ecology > 060204 Freshwater Ecology @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970106 Expanding Knowledge in the Biological Sciences @ 100%
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