STUDIES ON SOME ASPECTS OF REPRODUCTIVE BIOLOGY OF SOME IMPORTANT FISH SPECIES IN LAKE ALAU IN BORNO STATE, NIGERIA

摘要

During the 4 months of study period from April to July, 1993 a total of 67 female fishes from three different families (Characidae, Schilbedae and Cichlidae) were collected from a natural lake in north-eastern region of Nigeria for study of some aspects of reproductive biology including gonado-somatic index, fecundity and ova diameter which lead to conclusion about the spawning capacity, time and behaviour of these species.