Fenómenos reproductivos en el pejerrey (<i>Basilichtys bonaeriensis</i>)

Abstract

From the observations on 1.062 silversides from the «Laguna Chascomús» (Province of Buenos Aires) we are established stages of maturity in the sexual cicle. They are determiuated by macro aud microscopic descriptions, ova diameters and gonadosomatics index values. lt is possible to distinguish 7 stages of maturity for each sex, aud 2 stages of rematurity for the females.