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GIS for Assessing Spatio-temporal Variations in Trawl Bycatch off Mangalore Coast

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Relation http://eprints.cmfri.org.in/10489/
 
Title GIS for Assessing Spatio-temporal Variations in Trawl

Bycatch off Mangalore Coast
 
Creator Dineshbabu, A P
Thomas, Sujitha
Dinesh, A C
 
Subject Remote sensing
Fishery Technology
 
Description In India, trawl is the major gear contributing more

than 50% of the marine fish landing and during

2008-2011, the average landing along the Indian

coast was estimated at 1.7 million t. In India, fish

brought from trawl fishery for human consumption

in fresh or processed form is termed as commercial

landing and the rest is called low valued bycatch

(LVB). The increased demand for LVB from fish

meal plants is an emerging threat for marine fish

production in the future, since LVB was constituted

mainly by juveniles of commercial fishes. The study

showed that the percentage of LVB from the trawlers

in India increased from 21% in 2008 to 23% in 2011.

The results of the study identify some of the fishing

grounds and seasons, in which the percentage of

juvenile bycatch of the commercial species is very

high. Implementing operational restrictions in the

fishery in such areas will help in reviving the stock.

The paper illustrates the utility of the spatio-
temporal data in suggesting seasonal and spatial

restrictions in fishing operations in tropical

multispecies scenario.
 
Publisher Central Institute of Fisheries Technology
 
Date 2015
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/10489/1/Dineshbabu_Fishery_technology__2015_52_GIS.pdf
Dineshbabu, A P and Thomas, Sujitha and Dinesh, A C (2015) GIS for Assessing Spatio-temporal Variations in Trawl Bycatch off Mangalore Coast. Fishery Technology, 52. pp. 152-156.