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Maturity, spawning and sex ratio of the ribbonfish Trichiurus lepturus Linnaeus off Kakinada

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Relation http://eprints.cmfri.org.in/750/
 
Title Maturity, spawning and sex ratio of the ribbonfish Trichiurus lepturus Linnaeus off Kakinada
 
Creator Narasimham, K A
 
Subject Ribbon Fishes
Fish biology
 
Description The results of a study conducted on Trichiurus kptums during 1967-70 and supplemented
by observations made during 1986-87 are presented in this paper. Majority of males attain maturity
at 42 an and females at 46 cm length. Spawning is prolonged and takes place during January-August
period. The individual fish spawns atleast twice during the spawning seasan. Fecundity varied from
2,380 ova in 42 cm fish to 27,320 ova in 77 cm fish. The annual sex ratio indicated that males
outnumbered females in all the years. The sex ratio in relation to the length of fish showed that
males dominated between 26-70 cm, the proportion of males and females was equal at 74 cm,
females outnumbered between 78 to 94 cm and all.the fish were females beyond the 94 cm length
group.
 
Publisher MBAI
 
Date 1994
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/750/1/Naras_199-204.pdf
Narasimham, K A (1994) Maturity, spawning and sex ratio of the ribbonfish Trichiurus lepturus Linnaeus off Kakinada. Journal of the Marine Biological Association of India, 36 (2). pp. 199-204.