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- W993538279 abstract "Age and growth, gear selection, instantaneous total mortality co-efficient (Z) and instantaneousnatural mortality co-efficient (M) were estimated for the squid Loligo duvaucelii from catch, effort andlength frequency data collected from trawl net operations at Veraval from 1979 to 1983. Estimatedyield per recruit at different combinations of age at first capture, fishing mortality co-efficient (F) andcod end mesh size are given in the form of yield isopleth diagrams for two different M/K ratios. Optimumeffort was found to be just higher than the present average effort expended indicating that the squidfishery does not presently suffer from overfishing. For better management of this fishery, it is observedthat the prevailing mesh size be increased to 35 mm so as to realise higher yield and to copewith the impending increase in effort. This observation is valid only when the fishery is aimed mainlyat L. duvaucelii as the squid is only a by-catch in the trawl net." @default.
- W993538279 created "2016-06-24" @default.
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- W993538279 date "1985-01-01" @default.
- W993538279 modified "2023-09-27" @default.
- W993538279 title "Population dynamics of the squid Loligo duvaucelii D'orbigny (Cephalopoda) in Saurashtra waters" @default.
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