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Production efficiency of two demersal finfishes in the trawling grounds off Veraval

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Title Production efficiency of two demersal finfishes
in the trawling grounds off Veraval
Not Available
 
Creator Vivekanandan,E
 
Subject demersal fisheries
finfishes
Veraval
 
Description Not Available
The feeding rate of Nemipterus japonicus in the trawling grounds off Veraval
decreased with advancing age from 5.8% body weight/day (age: 0.1-0.5 year) to
4.0% bw/d (3.0-3.5 y) with an average of 4.7% bw/d. The production efficiency was
0.06. i.e. 6% of the consumed food was converted for growth. The feeding rate of
Saurida tumbil also decreased with advancing age from 10.8% bw/d (age: 0.2-
0.5y) to 7.8% bw/d (4.0-4.5 y) with an average of 9.1% bw/d. The production efficiency
was 0.03. The annual food consumption of the exploited biomass (27131) of
both the species was 60.923 t. The annual food consumption of the two species
was almost equal to that of the total trawl landings at Veraval. indicating high
predation mortality in the ecosystem.
Not Available
 
Date 2021-08-23T09:54:51Z
2021-08-23T09:54:51Z
2001
 
Identifier Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/59633
 
Language English
 
Relation Not Available
 
Publisher CMFRI/ICAR