Mode dioecism Fertilization internal (oviduct) Spawning frequency No obvious seasonal peak Batch spawner Ref. Reproductive guild bearers internal live bearers Description of life cycle and mating behavior The species is viviparous (Ref. 5258). Internal fertilization is possible because the anal fin of the male is modified into a copulatory organ. The females carries about 30 alevins and gestation lasts for a period of 24 days (Ref. 6348) to a month (Ref. 30578). Search for more references on reproduction Scirus
Mode dioecism Fertilization internal (oviduct) Spawning frequency Batch spawner Ref. Reproductive guild bearers internal live bearers Description of life cycle and mating behavior Matures at 4-6 weeks; 3 generations can be produced in one year. Gestation lasts 3-4 weeks. Brood may reach up to 354 young, but is generally around 40-60 (Ref. 1672, 59043). Search for more references on reproduction Scirus