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Population Dynamics and Fishery of Ribbonfish (Trichiurus lepturus) of Saurastra Coast

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Title Population Dynamics and Fishery of Ribbonfish (Trichiurus lepturus) of
Saurastra Coast
Not Available
 
Creator Fofandi,Mahendra
 
Subject Trichiurus lepturus
Ribbon fish
Fishery
Population
dynamics
Saurastra coast
Gujarat
 
Description Not Available
Ribbonfish fishery in Saurastra coast of Gujarat is majorly supported by Trichiurus lepturus. It is exploited by
trawls and gillnets throughout the year with peak during September to December. The highest length of T. lepturus
was found to be 125 cm with a mean length of 76.47 cm. The asymptotic length, growth coefficient, and age at
zero length were 131.25 cm, 0.13 and -0.0777 years. The performance index was 3.35. Recruitment pattern was
trimodal with peak during May to July. The smallest length of recruitment was 27 cm. The total, natural and fishing
mortality was 0.44, 0.13 and 0.31. The exploitation ratio and rate of exploitation was 0.30 and 0.105. The annual
total stock, biomass and MSY was 1,91,935 t, 1,55,277 t and 34,161 t, respectively. The yield and yield per recruit
at present fishing effort was 23,682.5 t and 65.13 g. The study revealed that currently the ribbonfish at Saurastra
coast of Gujarat is underexploited. The fishing pressure has to be increased by 120% from the present condition to
get maximum yield and biomass.
Not Available
 
Date 2021-09-16T06:56:43Z
2021-09-16T06:56:43Z
2012
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/63017
 
Language English
 
Relation Not Available