Stock structure of blue threadfin Eleutheronema tetradactylum across northern Australia, as indicated by parasites

Moore, B.R., Stapley, J., Allsop, Q., Newman, S.J., Ballagh, A., Welch, D.J., and Lester, R.J.G. (2011) Stock structure of blue threadfin Eleutheronema tetradactylum across northern Australia, as indicated by parasites. Journal of Fish Biology, 78 (3). pp. 923-936.

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Abstract

The parasite fauna of the blue threadfin Eleutheronema tetradactylum, collected from 14 sites across northern Australia, was examined to evaluate the degree of movement and subsequent stock structure of the fish. Univariate and multivariate analysis of nine 'permanent' parasite species [the nematodes Anisakis (type I) and Terranova (type II), the cestodes Otobothrium australe, Pterobothrium pearsoni, Pterobothrium sp. A, Callitetrarhynchus gracilis, Parotobothrium balli and Nybelinia sp., and the acanthocephalan Pomphorhynchus sp.] demonstrated little similarity between sites, indicating limited mixing and therefore long-term separation of post-juvenile fish. As such, the effects of fishing are likely to be localized within the current administrative boundaries, implying little need for interstate co-operative management. Within each jurisdiction, management of E. tetradactylum populations, including the establishment of harvest strategies and fishery regulations, should be conducted in a way that recognizes the resident nature of the fish.

Item ID: 17392
Item Type: Article (Refereed Research - C1)
Keywords: biological tags, fisheries management, stock structure
ISSN: 1095-8649
Funders: Fisheries Research and Development Corporation
Projects and Grants: FRDC Project No. 2007/032
Date Deposited: 29 Jun 2011 04:43
FoR Codes: 07 AGRICULTURAL AND VETERINARY SCIENCES > 0704 Fisheries Sciences > 070404 Fish Pests and Diseases @ 33%
07 AGRICULTURAL AND VETERINARY SCIENCES > 0704 Fisheries Sciences > 070403 Fisheries Management @ 33%
07 AGRICULTURAL AND VETERINARY SCIENCES > 0704 Fisheries Sciences > 070402 Aquatic Ecosystem Studies and Stock Assessment @ 34%
SEO Codes: 83 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 8302 Fisheries - Wild Caught > 830204 Wild Caught Fin Fish (excl. Tuna) @ 100%
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