Biological reference points for managing kingfish, Scomberomorus commerson, in Oman

Siddeek, M.S.M. and Al-Hosni, A.H.S. (1998) Biological reference points for managing kingfish, Scomberomorus commerson, in Oman. Naga, the ICLARM Quarterly, 21(4), pp. 32-36.

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Abstract

The 1987-1995 length composition of quarterly catches of Scomberomorus commerson (Lacepede 1800) was analyzed to determine various biological reference points for management purposes. These include: fishing mortality producing maximum yield-per-recruit in weight (F sub(max)), fishing mortality producing 50% relative mean mature biomass (F sub(50)), and fishing mortality producing recruits that would exactly replace their parent stock (F sub(rep)). F sub(max) provided misleading suggestions to increase fishing mortality on the stock which is currently at a low level. On the other hand, both F sub(50) and F sub(rep) provided acceptable results, suggesting reduction on the current fishing mortality by 17-40%.

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