Khalid Perviaz
Fisheries Research & Training Institute
Pakistan
Title: Reproductive analysis of indus mahseer tor macrolepis (Heckel, 1838) (Teleostei: Cyprinidae)
Biography
Biography: Khalid Perviaz
Abstract
A study on reproductive biology and development of Indus mahseer, Tor macrolepis (Heckel) was conducted for one year at Fish Nursery Attock, Pakistan. During this study, controlled breeding without exogenous hormones was carried out. Absolute and relative fecundity was found to be related to wet body weight, total length and standard length in Indus mahseer. The species exhibits two breeding seasons i.e., April-May and August-September in one year. Ova diameter for early and late breeding season was observed as m: 2.885±0.07, hatching time 85.5-94 hrs with survival 93% and m: 3.07±0.13, hatching time 82-90 hrs with survival 87% respectively .Mean values of absolute fecundity of the species was found as 2688 ova per kg±1234.616; range 890-5080 and relative fecundity as 3.57±0.704; range 1.8-4.37.