Distribution of sex ratios of penaeid prawns in the trawl fishery off Cochin

George, M J and Rao, P Vedavyasa (1967) Distribution of sex ratios of penaeid prawns in the trawl fishery off Cochin. In: Symposium on Crustacea ; part II, MBAI, 12-16 January 1965, Ernakulam.

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Abstract

Sex ratio data of four species of penaeid prawns Metapenaeus dobsoni, Penaeus indicus, Parapeneopsis stylifera and Metapenaeus affinis in the trawl fishery catches of Cochin for 1962 and 1963 are analysed statistically and it is found that in the former three species the distributions of the sexes are significantly different from what could be accounted for by binomial theory and in Metapenaeus affinis alone the sexes are more or less evenly distributed throughout the year. It is suggested that the differential sex ratios in the fishing grounds may be brought about by the segregated sex movements for breeding.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Distribution of sex ratios; penaeid prawns; trawl fishery; Cochin
Subjects:Crustacean Fisheries > Prawn and Prawn fisheries
Divisions:CMFRI-Cochin > Marine Capture > Crustacean Fisheries
ID Code:2398
Deposited By:Geetha P Mrs
Deposited On:15 Aug 2010 22:46
Last Modified:15 Aug 2010 22:48

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