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Fishery and biology of the crab Portunus sanguinolentus (Herbst) along the South Kanara coast

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Relation http://eprints.cmfri.org.in/383/
 
Title Fishery and biology of the crab
Portunus sanguinolentus (Herbst) along the
South Kanara coast
 
Creator Sukumaran, K K
Telang, K Y
Thippeswamy, O
 
Subject Crabs
 
Description The fishery of the crab Portunus sanguinolenttis along the South Kanara
coast extends generally from, December to May. The catches of the species at
Mangalore during 1979-80, 1980-81 and 1981-82 are estimated respectively at
102.3 t, 100.2 t and 57.0 t. The catches at Malpe during 1980-81 and 1981-82
are at 65.9 t and 44.1 t, respectively. The carapace-width-body-weight relationship
does not differ between sexes. Spawning takes place throughout the season, with
peaks in February and April-May. Males are in excess of females, differing though
not significantly from the expected 1 : 1 ratio. Fecundity is estimated to be ranging
between 0.03 million (in a specimen of 83-mm carapace width) and 0.07
million (in a specimen of 113-mm carapace width), suggesting a positive relationship
between size and fecundity. The L^, and e"'' values are found respectively
at 173 mm and 0.7 in males and 163 mm and 0.75 in females.
 
Publisher CMFRI/ICAR
 
Date 1986
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/383/1/Article_08.pdf
Sukumaran, K K and Telang, K Y and Thippeswamy, O (1986) Fishery and biology of the crab Portunus sanguinolentus (Herbst) along the South Kanara coast. Indian Journal of Fisheries, 33 (2). pp. 188-200.