POTENTIAL EFFECTS OF 17-ALPHA-METHYLTESTOSTERONE USED IN ALL-MALE PRODUCTION OF Oreochromis niloticus ON Sclerophrys regularis INHABITING PONDS USED FOR SEX REVERSAL
INTERACTIVE EFFECT OF WATER TEMPERATURE AND NITRATE FERTILIZERS ON GROWTH, SURVIVAL, AND HATCHING SUCCESS OF EGGS, EMBRYOS AND LARVAE OF AFRICAN CATFISH Clarias gariepinus, BURCHELL 1822)