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Dynamics of Inter-Population Reproductive Pattern in Butter Catfish, Ompok Bimaculatus (Bloch, 1794) from Different Rivers in India.

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Title Dynamics of Inter-Population Reproductive Pattern in Butter Catfish, Ompok Bimaculatus (Bloch, 1794) from Different Rivers in India.
Not Available
 
Creator Uttam Kumar Sarkar
Praveen Agnihotri
Ravindra Kumar
Abhishek Awasthi
Brijesh Kumar Pandey
Abha Mishra
 
Subject Ompok bimaculatus
comparative assessment
reproductive traits
wild population
 
Description Not Available
This study demonstrates the comparative pattern of reproductive parameters viz. sex ratio, size at first gonadal maturity, gonadosomatic index (GSI), fecundity, egg dimension of O. bimaculatus analyzed from 13 different rivers during 2011–2013. It was observed that females start to mature earlier than males and mean size at first maturity in male and female varied considerably between the different populations. The reproductive period of fish were extended from April - August while in Southern rivers it was extended from March to July. The results indicated three types of reproductive patterns of O. bimaculatus in terms of age at first sexual maturity and absolute fecundity and distinct variation was observed across different rivers. The meanabsolute fecundity varied significantly between the rivers and was grouped in to three categories: (i) high absolute fecundity (ii) medium fecundity and (iii) low fecundity. The results indicated significant and positive correlation between absolute fecundity and total length, body weight and ovary weight in all the rivers (P
Department of Biotechnology, GoI
 
Date 2021-07-28T07:24:53Z
2021-07-28T07:24:53Z
2017-03-20
 
Type Research Paper
 
Identifier Sarkar, U.K., Agnihotri, P., Kumar Ravindra, Awasthi, A., Pandey, B.K. and Mishra, A., 2017. Dynamics of inter-population reproductive pattern in butter catfish, Ompok bimaculatus (Bloch, 1794) from different rivers in India. Turkish Journal of Fisheries and Aquatic Sciences, 17(5): 1063-1073.
1303-2712
http://krishi.icar.gov.in/jspui/handle/123456789/50606
 
Language English
 
Relation Not Available;
 
Publisher Central Fisheries Research Institute of Turkey and Japan International Cooperation Agency (JICA)