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Stock assessment of the ribbonfish, Wchiurus lepturus Linnaeus, from the Indian waters

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Relation http://eprints.cmfri.org.in/523/
 
Title Stock assessment of the ribbonfish, Wchiurus lepturus
Linnaeus, from the Indian waters
 
Creator Thiagarajan, R
Lazarus, S
Appanasastry, Y
Khan, Mohammad Zafar
Mohamad Kasim, H
Scariah, K S
 
Subject Ribbon Fishes
Stock Assessment
 
Description The fishery of the ribbonfishes and population of the species Trichiurus lepturur Linnaeus were studied from
the all-India datacollected during 197 1-89. The last five years were the most productive with an annual average
catch of 79 220 tonnes. contributing 4.5% of the total fish catch and exhibiting an increase of about 48% over
the 1970-81 period. This increase in the landings was attributed to the increased exploitation by trawl nets in
states IikeGujmt and Maharashtra. Trawl net contributed about 50% of the total catch. About 75% of the catch
came from the west coast and the rest from the enst coast. In the west coast the peak fishing season was in the
fourth quarter except in Kerala where it was in the third quatter. In the east coast also, peak season was in the
fourth quarter in the northern states and in the third quarter in the southern states. The total instantaneous
mortality (Z) rates were estimated as 3.15 and 3.71 for the east and west coasts respectively by length converted
catch curve method. By Jones' cohort analysis they were estimated at 3.32 for the east and 3.77 for 'he west
coasts.
 
Publisher CMFRI/ICAR
 
Date 1992
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/523/1/Vol_39_No_3%264%3B182-194.pdf
Thiagarajan, R and Lazarus, S and Appanasastry, Y and Khan, Mohammad Zafar and Mohamad Kasim, H and Scariah, K S (1992) Stock assessment of the ribbonfish, Wchiurus lepturus Linnaeus, from the Indian waters. Indian Journal of Fisheries, 39 (3&4). pp. 182-194.