ASSESSMENT OF BREEDING CAPACITY AND SEX-RATIO OF Barilius barna (HAMILTON) IN SPRING-FED TAMSA STREAM,GARHWAL REGION, INDIA

The present study deals with the assessment of breeding capacity of Barilius barna in the spring-fed Tamsa stream of Garhwal region (Lat.30°21’25.84”N and Lon.78°01’00.45”E), India. It was found that the absolute fecundity of this species were varied depending on the sizes, the lowest was 401 and highest 1395 recorded in 51 mm to 82 mm fish sizes respectively. The breeding capacity was mostly dependent on the ovary length than any other body parameters. The maximum sex composition was noticed 1.00 male: 1.50 female in the month of April whereas the lowest was observed as 1.25 male: 1.00 female in the month of December and the overall, sex-ratio was recorded 1.00 male: 1.08 female.