Reproduction of Poecilia reticulata
Document source: http://fishbase.mnhn.fr/Reproduction/FishReproSummary.php?ID=3228&GenusName=Poecilia&SpeciesName=reticulata&fc=216&StockCode=3424
 
Main Ref. Balon, E.K., 1990
Mode dioecism
Fertilization internal (oviduct)
Mating type promiscuity
Spawning frequency No obvious seasonal peak
Spawning aggregation Ref.  
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
(e.g. 9948)
( e.g. cephalopods )
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