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Food and feeding habits of commercially important demersal finfishes off Veraval coast

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Title Food and feeding habits of commercially important demersal
finfishes off Veraval coast
Not Available
 
Creator Mojjada,Suresh Kumar
Sreenath,K R
Koya,Mohammed
Zala,M S
Anbarasu,M
Thangavelu,R
Shiju,P
 
Subject Demersal finfishes
Food and feeding
Veraval coast
 
Description Not Available
Stomach contents of nine species of commercially important demersal finfishes off Veraval coast were examined. Fish
samples were collected periodically from the commercial trawlers of Veraval from January 2009 to October 2010. The
dietary components of each species was studied and expressed as percentage of numerical composition (CN), percentage of
gravimetric composition (CW) and percentage of frequency of occurrence (F). The major food items in the stomachs of each
species were determined using an Index of Relative Importance (IRI). The gut contents of the fish varied in number, weight,
and their frequency of occurrence with species to species. The study showed that prey items that were smaller in size
constituted the major bulk, while the large size prey items were in fewer numbers. Based on cluster analysis (Bray-Curtis
similarity) of predator (fish) feeding similarities , six sub-groups and the following three major groups were identified:
group I (detritus feeders) comprised Pampus argenteus and Arius thalassinus; group II, (pisces feeders), was the largest
group identified and included Saurida tumbil, Saurida undosquamis, Otolithes cuvieri and Johnius glaucus; group III,(shrimp
feeders), consisted of Priacanthus hamrur, Nemipterus japonicus and Nemipterus mesoprion. Acetes spp., prawns and juvenile
finfishes were the most important food items consumed by majority of the species. The values of the feeding index did not
show any significant variation in different months during the two years of observation. However, the feeding intensity was
slightly higher during the period of September to December. The results of the present investigation could provide valuable
information in formulating strategies for management of fishery resources in the region.
Not Available
 
Date 2021-09-16T06:44:22Z
2021-09-16T06:44:22Z
2012
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/62946
 
Language English
 
Relation Not Available