Discovery of a pupping site and nursery for critically endangered green sawfish Pristis zijsron

Morgan, D.L., Allen, M.G., Ebner, B.C., Whitty, J.M., and Beatty, S.J. (2015) Discovery of a pupping site and nursery for critically endangered green sawfish Pristis zijsron. Journal of Fish Biology, 86 (5). pp. 1658-1663.

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Abstract

A pilot study targeting sawfishes in the southern Pilbara region of Western Australia, which is undergoing a major expansion in human activity, was conducted using gillnets during April and October 2011 in the Ashburton Estuary and adjacent mangrove creeks. Catch per unit effort was greatest in the Ashburton Estuary in October, due to an influx of green sawfish Pristis zijsron pups, and was orders of magnitude higher than previously reported for any Pristidae; the study sites contained P. zijsron up to almost 3m total length. This study identified the first pupping site for P. zijsron in Western Australia, and the most southerly known nursery area for the species in Australian waters, and is potentially the most important globally.

Item ID: 42934
Item Type: Article (Research - C1)
ISSN: 1095-8649
Keywords: Ashburton River; endangered species; fish; fishing; mangrove; Pristidae.
Funders: Chevron Australia
Date Deposited: 24 Feb 2016 00:44
FoR Codes: 05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and Management > 050202 Conservation and Biodiversity @ 50%
07 AGRICULTURAL AND VETERINARY SCIENCES > 0704 Fisheries Sciences > 070403 Fisheries Management @ 50%
SEO Codes: 85 ENERGY > 8502 Mining and Extraction of Energy Resources > 850203 Oil and Gas Extraction @ 50%
96 ENVIRONMENT > 9606 Environmental and Natural Resource Evaluation > 960603 Environmental Lifecycle Assessment @ 50%
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