Reproductive Biology of Ripon Barbel (Labeobarbus Altianalis) In River Kuja-Migori Basin, Kenya

The present study aimed to investigate the reproductive biology of Labeobarbus altianalis from River Kuja-Migori basin, Kenya. This fish species is distributed in most water bodies Lake Victoria basin and effluent rivers. susceptible fishing due aggregation at river mouths during reproduction seasons. We conducted a for 18 months with an objective determining length 50% sexual maturity, fecundity, gonadosomatic index, egg size, sex ratio breeding season L. altianalis. results showed that this occurred March August September November coinciding longer shorter rain Fecundity ranged 1320-2382 eggs (mean 1552 ± 23.3). There was strong correlation between fecundity total (R2 = 0.994). mean diameter 1.2 0.007 mm. Mean gonado-somatic index 5.63 0.34 2.24 0.21 females males respectively. maturity estimated be 16.3 cm no significant difference hypothetical 1:1 (χ2, p > 0.05). Females had low attain earlier than females. Results provide important information managing riverine fishery basin.
 Vol. 9, No. 2, 2022: 221-228