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An account of naturally occurring and artificially produced cyprinid hybrids in India

Establishment of a Network of Aquaculture Centres in Asia

Year of publication 1986

Pages p. 11

Author H.A. Khan & G.V. Kowtal;Fisheries and Aquaculture Management Division

Product type Project

Edition 1

Synopsis (short abstract) Several interspecific and interganeric hybrids of Indian major carps : Catla catla, Labeo rohita, Cirrhinus mrigala and Labeo calbasu (Chaudhuri 1959, 1971 & 1973; Naseem Hamza 1971; Naseem Hamza & Alikunhi, 1971; Varghese & Sukumaran, 1971; Chondar 1977) and those of Indian major carps with exotic carps viz. common carp (Alikunhi & Chaudhuri 1959; Kowtal & Gupta 1984, Khan et al; 1986 and Gupta et al; 1986) and silver carp (Ibrahim et al; 1980) have been artificially produced through hypophysat ion. From natural ecosystems such as reservoir and dry bundhs, several hybrids have been recorded (Desai & Rao, 1970; Tripathi et al; 1974, Tripathi and Sharaf 1974; Natarajan et al; 1976 & Prasad 1976). Many of these hybrids were found to be intermediate in characters of the parent species. Only a few hybrids, both artificially produced and naturally occurring, have been studied in detail for their cultural qualities and adaptability to various environments. In the present communication an ac count of economically important hybrids of Indian major carps have been given and their role in the development of reservoir fisheries as well as in increasing fish production in aquaculture has been discussed and use of hybrid index, multivariate techniques and genetic markers in identifying hybrids has been emphasised.

Language English

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    Project
    Studies on the intergeneric hybrid common carp, Cyprinus carpio communis L. x mrigal, Cirrhinus mrigala (Hamilton)
    Establishment of a Network of Aquaculture Centres in Asia
    1986
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    An intergeneric hybrid between female common carp, Cyprinus carpio communis L. and male mrigal, Cirrhinus mrigala (Hamilton) was successfully produced at this Centre and reared. Its embryonic and larval developmental stages were compared with those of parents and reciprocal hybrid. The mode of development was observed to be similar to that of common carp. Though the percentage of fertilization was high (65–85%), yet survival of post-larvae was quite low, ranging from 30–40% due to occurrence of abnormality in embryos and larvae. Some aspects of morphometry of the above hybrid are described in the present communication.
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    Journal, magazine, bulletin
    FAO Aquaculture Newsletter - December 1997 - No.17 1997
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    FAO Aquaculture Newsletter (FAN) is issued three times a year in the form of printed newsletter by the FAO Fisheries and Aquaculture Department. It presents articles and views from the FAO aquaculture programme and highlights various aspects of aquaculture as seen from the perspective of both headquarters and the field programme. Articles are contributed by FAO staff from within and outside the Department, from FAO regional offices and field projects, by FAO consultants and, occasionally, by inv itation from other sources. FAN is distributed free of charge to all FAO member countries and has a current circulation of about 1 500 copies. It is also available online at: http://www.fao.org/fishery/publications/fan/
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