Fishery and biology of white sardine, Escualosa thoracata (Valenciennes) at Versova, Bombay
1994
Raje, S.G. | Deshmukh, V.D. | Thakurdas, A.
Gill net fishery exclusively for the white sardine, Escualosa thoracata, which started in mid-eighties at Versova, is described. During 1987-88 to 1991-92 periods, the annual average landing of the species was 202.2 tons with year to year fluctuations. The peak fishing season was during April-May. The size range of the species in the gill net was 41-105 mm and the von Bertalanffy growth parameters, L. and K, estimated by the ELEFAN program were 110 mm and 1.8 per year. The length-weight relationship was W=0.000001508 L(super 3.3946) for the males and W=0.000002561 L(super 3.2706) for the females. The food consisted of copepods, cladocerans and crustacean larvae. The size at maturity for the females was 82 mm and spawning took place during October - February period. The sex-ratio showed equal proportion except during January, July and October when females dominated in the catch.
显示更多 [+] 显示较少 [-]Paper presented at the National Symposium on Aquacrops, 16-18 November 1994, Versova, Mumbai (India)
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