Impact of square mesh codend on conservation of resources

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dc.contributor.authorVarghese, M.D.
dc.contributor.authorManoharadoss, R.S.
dc.contributor.authorNair, A.K.K.
dc.date.accessioned2013-11-26T10:34:55Z
dc.date.available2013-11-26T10:34:55Z
dc.date.issued2004
dc.description.abstractRetention of immature and undersized species of fishes and shrimps in the conventional diamond mesh codends of trawls, results in indiscriminate exploitation and consequent resource crunch. Replacement of diamond mesh codend with square mesh which remain open under tow unlike the former, facilitates escape of juveniles through better filtration. Length frequency studies were undertaken with codends of different shape and size to compare the size pattern of different species caught in the diamond and square mesh codends and also to evaluate the performance in reducing the retention of discards and immature fish. The analysis of the data revealed that the square mesh codends retained considerably less small fish. The length at 50% retention was more in square mesh codends in respect of certain species. But this phenomenon was not applicable to some species in view of the morphological difference between species and also when the codend is saturated with high catch.en_US
dc.identifier.citationPaper presented at International Symposium on Large Marine Ecosystems: Exploration and Exploitation for Sustainable Development and Conservation organised by Fishery Survey of India, Mumbai held at Cochin, 25 -27 Nov, 1998 ed. by Somvanshi, V.S. et. al, 560-568en_US
dc.identifier.urihttp://hdl.handle.net/123456789/674
dc.language.isoenen_US
dc.publisherFishery Survey of India, Mumbai (India)en_US
dc.subjectCodenden_US
dc.subjectmesh selectivityen_US
dc.subjectmesh regulationsen_US
dc.subjectresource conservationen_US
dc.titleImpact of square mesh codend on conservation of resourcesen_US
dc.typeArticleen_US
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