Սևանա լճի ավազանում ամուրյան չեբաչոկի (Pseudorasbora parva) վերարտադրության առանձնահատկությունները
Keywords:
Lake Sevan – Stone moroko – sex ratio – fecundity
Abstract
The study of reproduction features of Stone moroko in the basin of Lake Sevan has been conducted in 2011-2012. Analysis of sexual structure of Stone moroko show, that the mean ratio between male and female individuals in the population were 1:1. Absolute Individual Fecundity of Stone moroko in the basin of Lake Sevan was 240-3000 roe. Biometric analysis of oocytes in theovaries of Lake Sevan basin’s Stone moroko has shown, that spawning is portioned (6-8 portions).
Fish row has ellipsoidal form with the length from 0.19 to 1.25mm and width from 0.13-0.75mm.
