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Population dynamics of Nemipterus japonicus (block) In the trawling grounds off Madras

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Relation http://eprints.cmfri.org.in/378/
 
Title Population dynamics of Nemipterus japonicus (block)
In the trawling grounds off Madras
 
Creator Vivekanandan, E
James, D B
 
Subject Population Dynamics
 
Description Nemipterus japonicus matures at 145 mm total length and has an extended
spawning season from June to March with maximum spawning activity in December-
March. The length-weight relationship of fish can be expressed as: log W =
—4.8665 + 2.9661 log L. The von Bertalanfly parameters of growth are estimated
thus: K = 1.004; t„ = 0.2257; Leo = 305 mm. The natural mortality and fishing
mortality rates are estimated at 2.5254 and 0.4599, respectively. Both the annual
stock (2300 t) and the standing crop (731 t) are higher than the estimated annual
catch (336 t), indicating that the present fishing effort can safely be increased
without the stock being affected.
 
Publisher CMFRI/ICAR
 
Date 1986
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/378/1/Article_03.pdf
Vivekanandan, E and James, D B (1986) Population dynamics of Nemipterus japonicus (block) In the trawling grounds off Madras. Indian Journal of Fisheries, 33 (2). pp. 145-154.