Journal of the Marine Biological Association of India

Indescriminate destruction of juveniles of spiny cheek grouper Epinephelus diacanthus (Valenciennes) off Quilon. Kerala

Volume 48 Issue 1

S.Sivakami and P.K.Seetha

Abstract

An incidence of juvenile capture of Epirleplrelus diacantlrus (Val.) (Family: Serranidae) off Quilon, South west Coast of India is reported. They formed 65% of the discards landed on 13-10-2005 with an estimated catch of 2,610kg. The juveniles were in the size range of 88-140mm (mean size = 110 mm) with the modes at 106-110mm and at 116-120mm. They fed on crabs (Charybdis sp.), mysids, Acetes sp., and alima larvae of Squilla. Length-weight relationship of these small fishes was worked out as Log W = - 5.421865 +3.26 Log L (r =0.9193). It is estimated that the juveniles with an average calculated weight of 17.2g, if allowed to grow would have yielded a biomass of 76t with each individual attaining a total weight of 504g at the end of first year. Necessary management measures such as establishing Marine Protected Areas (MPAs) are necessary for protecting their nursery/spawning grounds.

Date : 30-06-2006

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