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Management of the panga Pterogymnus laniarius (Pisces: Sparidae) on the Agulhas Bank, South Africa using per-recruit models

Citation

Booth, AJ and Buxton, CD, Management of the panga Pterogymnus laniarius (Pisces: Sparidae) on the Agulhas Bank, South Africa using per-recruit models, Fisheries Research, 32, (1) pp. 1 - 11. ISSN 0165-7836 (1997) [Refereed Article]

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DOI: doi:10.1016/S0165-7836(97)00045-3

Abstract

Per-recruit models were applied to the panga, Pterogymnus laniarius (Cuvier, 1830) an important endemic sparid bycatch resource on the Agulhas Bank, South Africa. Management advice based on predictions from yield-per-recruit, biomass-per-recruit and spawner biomass-per-recruit analysis showed evidence for limited further exploitation with a FSB50 fishing strategy considered the most appropriate as it did not reduce the spawner biomass-per-recruit to less than 50% of unexploited levels. The slow growth and longevity of this species are shown to have important consequences for management, with a rapid decline in survivors past the age-at-50%-selectivity. Effort control was considered the most effective management tool as age-at-50%-selectivity occurred after age-at-sexual maturity and releasing undersized fish was undesirable due to heavy mortalities resulting from severe barotrauma.

Item Details

Item Type:Refereed Article
Keywords:Bycatch management; Per-recruit analysis; Groundfish; Sustainable utilisation; Biological reference points
Research Division:Agricultural and Veterinary Sciences
Research Group:Fisheries Sciences
Research Field:Fisheries Sciences not elsewhere classified
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Environmental Sciences
Author:Buxton, CD (Professor Colin Buxton)
ID Code:49229
Year Published:1997
Web of Science® Times Cited:26
Deposited By:TAFI - Marine Research Laboratory
Deposited On:2007-08-01
Last Modified:2012-01-18
Downloads:5 View Download Statistics

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