Reproductive biology of a hillstream catfish, Glyptothorax madraspatanum (Day), from the Garhwal, Central Himalaya, India |
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| Authors: | A K DOBRIYAL H R SINGH |
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| Institution: | Ecology Laboratory, Department of Zoology, H.N.B. Garhwal University Campus, Pauri Garhwal, U.P., India.;Department of Zoology, H.N.B. Garhwal University Campus, Srinagar Garhwal, U.P., India. |
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| Abstract: | Abstract. This paper studies maturity and spawning tendency of a hillstream catfish, Glyptothorax madraspatanum (Day), in the Western Nayar River, Garhwal, Central Himalaya, India. The fish is a protracted spawner as it spawns only once during the limited period from July to August. Fecundity ranges from 1640 to 6830 eggs and is more closely related to ovary weight and fish weight than ovary and fish length. There was a non-significant sex ratio of 1:1·24 between males and females. |
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