Th ree of the flYe major species'ofcatfishes in Lake Victoria displayed continuous, protracted
(fractional) spawning activity with halfor more of the population in gonadal stages IV-VI.
Pulses in reproductive activity occurred in all species and were generally positioned between
the established, rainy seasons for East Africa. Although highly variable, relative fecundity
was positively correlated with body length and weight of fish in all species. All five species
matured sexually between their first and third year of life