Captive breeding through synthetic hormone induced breeding of an eastern Himalayan hill stream fish, Barilius barila (Hamilton, 1822)

Abstract

Barilius barila, is a vulnerable and high valued edible Eastern Himalayan hill stream fish of Terai and Dooars regions of northern region of West Bengal. The study presents an experimental work on the captive breeding through induced breeding using synthetic hormone in Barilius barila carried for over a period of one year. This fish spawned in captivity only in running water system with a dosage of 0.5ml/fish WOVA-FH, a synthetic hormone. The results showed fecundity to range from 1440 to 7050 with an average rate of 5020.The average Gonado-somatic Index of Barilius barila for female was 12.77 and for male 6.69. Gonado-Somatic Index was higher in female than male. Gastro-somatic Index ranged from 5.94 to 11.73. The present work contributed to the lacunae in the information on fecundity, Gonado-somatic Index and spawning biology of Barilius barila.