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Dynamics of temporal foraging and feeding index of Labeo rohita (Hamilton, 1822) in East Kolkata wetlands, a Ramsar site

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Title Dynamics of temporal foraging and feeding index of Labeo rohita (Hamilton, 1822) in East Kolkata wetlands, a Ramsar site
Not Available
 
Creator A. Kumar
Sudhir Kumar Das
Dibakar Bhakta
 
Subject Labeo rohita; Food and feeding habits; Forage ratio; Phytoplankton; Zooplankton
 
Description Not Available
Temporal variations in the foraging and
feeding index of Labeo rohita collected from East
Kolkata wetlands were studied for one year. The gut
content analysis was carried out on 232 fish samples of
size ranging between 149 mm and 331 mm in total length.
The observations indicated that the fish diet comprised
of 19.2% Chlorophyceae, 10.2% Cyanophyceae, 10.4%
Bacillariophyceae, 7.7% flagellates, 2.7%
macro-vegetation, 9.2% rotifers, 4.9% copepods, 6.3%
cladocerans, 7.2% protozoans, 11.8% decayed organic
matter, 7.5% sand and mud and 0.8% miscellaneous
items. The feeding indices varied in different months
and were relatively higher during August and September
and lower during June and July. The forage ratio
indicated a preference towards phytoplanktons
(Chlorophyceae, Cyanophyceae, and Bacillariophyceae)
in large size fish and preference of zooplanktons in small
size fish.
WBUAFS
 
Date 2021-09-02T10:44:35Z
2021-09-02T10:44:35Z
2020-09-04
 
Type Research Paper
 
Identifier Kumar, A., Das, S.K. and Bhakta, D. 2020. Dynamics of temporal foraging and feeding index of Labeo rohita (Hamilton, 1822) in East Kolkata wetlands, a Ramsar site. J. Inland Fish. Soc. India, 52(2): 164-172.
0379-3435
http://krishi.icar.gov.in/jspui/handle/123456789/61214
 
Language English
 
Relation Not Available;
 
Publisher Inland Fisheries Society of India