Main Ref. | Balon, E.K., 1990 |
Mode | dioecism |
Fertilization | internal (oviduct) |
Mating type | |
Spawning frequency | No obvious seasonal peak |
Batch spawner | Ref. |
Reproductive guild |
bearers internal live bearers |
Parental Care | maternal |
Description of life cycle and mating behavior | Males are about half the size of females with colorful tail and caudal fin; the anal fin is transformed into a gonopodium for internal fertilization. Males are continuously chasing and mating females. Females can store sperms for later fertilization and may produce young every four weeks. Pregnant females are recognizable by black triangle between anal and pelvic fins. After a gestation period of four to six weeks females give birth to 20-40 live young. No parental care is exercised and parents may even prey on their young. |
Search for more references on reproduction | Scirus |