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Temporal patterns in cephalopod catches and application of non-equilibrium production model to the cephalopod fishery of Karnataka

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Title Temporal patterns in cephalopod catches and application of non-equilibrium production model to the cephalopod fishery of Karnataka
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Creator Mohamed,K S
Sasikumar,Geetha
 
Subject Cephalopods
Karnataka
Limit Reference Points
Non-Equilibrium Production Models
 
Description Not Available
Non-equilibrium production models were fitted to cephalopod catch and effort statistics to arrive at limit reference points (LRP), YMSY and fMSY. The parameter estimates, K (carrying capacity), r (intrinsic rate of population growth) and q (catchability coefficient) were 93,677 t, 0.403 per year, 8.614E-08 for Schaefer model. Estimated precautionary limit YMSY, was 9,446 t and the corresponding fMSY was 24,94,611 h. Despite the fact that the 2007 catches are currently around the YMSY, the current effort, fnow expended in the trawling ground is 29,32,214 h for a trawling period of 97.4 h per multi-day fleet (MDF) trip. Fishing effort is 28% in excess of the precautionary target, f0.1 estimated at 21,07,060 h as well as 20% above the LRP for sustaining the fishery at MSY levels. It is recommended that trawling effort for the MDF be reduced so that the long-term catches of cephalopods correspond to the YMSY levels in the present fishing area.
Not Available
 
Date 2021-09-16T06:56:49Z
2021-09-16T06:56:49Z
2012
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/63058
 
Language English
 
Relation Not Available