Sex ratio, fecundity and reproductive potential in two marine portunid crabs, Portunus (Portunus) sanguinolentus (Herbst) and Portunus (Portunus) pelagicus (Linnaeus) along the Karnataka coast

Sukumaran, K K and Neelakantan, B (1997) Sex ratio, fecundity and reproductive potential in two marine portunid crabs, Portunus (Portunus) sanguinolentus (Herbst) and Portunus (Portunus) pelagicus (Linnaeus) along the Karnataka coast. Indian Journal of Marine Sciences, 26 . pp. 43-48.

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Abstract

Chi-square values for the pooled data were significant at a probability level of 0.05 indicating that there was significant variation in sex ratio in P.{P) sanguinolentus and P. (P) pelagicus. The fecundity increased with the size of the crab from 0.044 to 1.19 x 10' eggs in P.{P) sanguinolentus and from 0.056 to 1.07 x 10' eggs in P. (P) pe/agicus and the correlation coefficient values were significant at P:;O.OOI level between the parameters studied. The productivity was found to increase from a low of 0.1 in 80-90 mm to a maximum of 2.2 in 120-130 mm in the former and 130-140 mm in the latter species.

Item Type:Article
Uncontrolled Keywords:Sex ratio; fecundity; reproductive potential; marine portunid crab; Portunus sanguinolentus; Portunus pelagicus; Karnataka coast
Subjects:Crustacean Fisheries > Crabs
Divisions:CMFRI-Cochin > Marine Capture > Crustacean Fisheries
ID Code:7011
Deposited By:Arun Surendran
Deposited On:17 Jan 2011 15:12
Last Modified:17 Jan 2011 15:12

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