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Fecundity of the freshwater catfishes Mystus seenghala (Sykes), Mystus cavasius (Ham. ), Wallagonia attu (Bloch) and Heteropneustes fossilis (Bloch) from the plains of northern India


Fecundity of the freshwater catfishes Mystus seenghala (Sykes), Mystus cavasius (Ham. ), Wallagonia attu (Bloch) and Heteropneustes fossilis (Bloch) from the plains of northern India



Hydrobiologia 543: 219-224



ISSN/ISBN: 0018-8158

DOI: 10.1007/bf00014288

Fecundity of four species of catfishes, namely, Mystus seenghala (Sykes), Mystus cavasius (Ham), Wallagonia attu (Bloch) and Heteropneustes fossilis (Bloch), was studied. The fecundity of Mystus seenghala and Mystus cavasius varied between 20064 to 46443 and 3314 to 63135 respectively. In Wallagonia attu and Heteropneustes fossilis it varied between 66070 to 453148 and 1375 to 46737 respectively. In all the four species fecundity has a linear relationship with body weight and gonad weight, and a parabolic relationship with length in all the fishes excepting Mystus seenghala, where it is linear. By subjecting the data to multiple regression analysis, it is observed that the fecundity of each species can be most accurately determined by taking two variables together. In all the fishes studied the relative fecundity (Egg/body wt.) does not change significantly either with length or body weight.

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Accession: 022639881

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