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Tuna resources of the Madras coast with a note on the growth parameters of (Cantor)

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Relation http://eprints.cmfri.org.in/743/
 
Title Tuna resources of the Madras coast with a note on the growth parameters of (Cantor)
 
Creator Srinivasarengan, S
Kuthalingam, M D K
Vivekanandan, E
 
Subject Tuna fisheries
Estimation
 
Description During the yean 1981-1986, an estimated annual average catch of 25 tonnes of tunas were landed
by gill nets opeiated from commercial mechanid vessels from the Kasimedu landing centre, Madras,
where all the catches from mcchanised.vessels land. This catch was obtained by expending annual average
of 18,209 fishing hours with a catch rate of 1.4 kghr. It was observed that the maximum catch and
catch rate were during April. Of the five species that constituted the fishery, Euthynnus afinis (79.9%)
dominated the catch followed by K a t s u m s pelamis (12.4%); Thumus albacares, Auis tirazard and
Sarda orientalis formed the rest of the'catch. The von Bertalanffy parameters of growth were calculated
for E. afinis by length frequency method and the values were compared with those obtained for the
species from other regions.
Based on the data collected during the 6 year period, Maximum Sustainable Yield and Optimum
fishing effort were estimated for tunas in the commen:ial fishing grounds off Madras (12.80/4C, 5C and
6C, 13.80/lC, 2C, 3C and 4C). The MSY yas 27 tonnes and the optimum fihing effort was 17,826
hours. These estimations nveal that the tuna stock ol the inshore area off Madras may not stand to any
further increase in fishing effod
 
Publisher MBAI
 
Date 1994
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/743/1/SRI_KUT_VIV_188-193.pdf
Srinivasarengan, S and Kuthalingam, M D K and Vivekanandan, E (1994) Tuna resources of the Madras coast with a note on the growth parameters of (Cantor). Journal of the Marine Biological Association of India, 36 (2). pp. 188-193.