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Study on catch composition and bycatch from shrimp trawl along Mumbai coast

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Title Study on catch composition and bycatch from shrimp trawl along Mumbai coast
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Creator Jenishma JS, Kesavan S, Shenoy L, Xavier KAM, Bhendekar SN, Kamat SS, Singh R, Sundhar S
 
Subject aquatic animals, aquatic invertebrates, aquatic organisms, bycatch, female genitalia, fisheries, jellyfish, losses, marine invertebrates, seasons, shellfish, shrimps, sustainability, vagina
 
Description Not Available
Bycatch one of the major issue in marine fishery is contributed mainly by trawls due to their low selectivity. Investigations on trawl fishery were carried out fortnightly from September 2017 to May 2018 by means of experimental fishing using shrimp trawl to study the catch composition and discards from trawl along Mumbai coast. Of the total catch 1218.91 kg, discarded catch contributed maximum 1128.55 kg, commercial catch 86.85 kg and marine debris 3.5 kg. The catch and discard percentage varied from 0%-63% and 37% to 100% respectively. Catch per hour was the maximum during November (63.26 kg) and discards per hour was maximum during October and November due to abundance of jellyfish and Trypauchen vagina. Monthly shrimp: bycatch ratio estimated varied from 1:3.4 to 1:60.98 and the mean monthly bycatch was estimated as 10.26 kg h-1. Of the total catch shrimps formed 8%, non-target catch 32% and discards 60%. In all, 83 species were encountered in the trawl. It is thus evident from the results of the present study that the marine fisheries sector of Mumbai is in crisis with increasing discards and decreasing target catch that indicates both ecological and economic loss. The data generated through this study could be used for suggesting seasonal and spatial restrictions in fishing to conserve and maintain the sustainability of these resources.
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Date 2022-06-17T06:02:34Z
2022-06-17T06:02:34Z
2019-01-01
 
Type Research Paper
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/72758
 
Language English
 
Relation Not Available;
 
Publisher Research Gate