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

Kelly, E., Travouillon, K.J., Keleher, J., Gibson-Kueh, S. and Morgan, D.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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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 Type: Journal Article
Murdoch Affiliation(s): Centre for Fish and Fisheries Research
Freshwater Fish Group & Fish Health Unit
School of Veterinary and Life Sciences
Publisher: Academic Press
Copyright: © 2016 Elsevier Ltd
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