Reproduction of Oreochromis mortimeri
Document source: http://fishbase.mnhn.fr/Reproduction/FishReproSummary.php?ID=1415&GenusName=Oreochromis&SpeciesName=mortimeri&fc=349&StockCode=1465
 
Main Ref. Trewavas, E., 1983
Mode dioecism
Fertilization in mouth
Mating type
Spawning frequency throughout the year, but peaking once
Spawning aggregation Ref.  
Batch spawner Ref.  
Reproductive guild bearers
external brooders
Parental Care
Description of life cycle and mating behavior Nest a saucer-shaped depression with a raised mound in the middle (Ref. 12524, 13337), made by the male in a breeding arena in shallow water down to about 4m (Ref. 54048). Females are lured to these through male courtship displays; female collects eggs in mouth after spawning and fertilisation, and moves off; mouthbrooding females may shoal together and do not feed at this time; eggs hatch after about ten days but remain in the mouth for a further few days; juveniles make short feeding sorties once the storage yolk is used up, but seldom stray far and dart into her mouth when danger threatens; after about another 10 days young are released in warm shallow water in the margins (nursery areas), where they feed independently in small shoals (Ref. 54048). Young released from mouthbrooding female are about 1cm long (Ref. 2). Female returns to the breeding arena where she spawns again (Ref. 54048).
Search for more references on reproduction Scirus
(e.g. 9948)
( e.g. cephalopods )
Entered by Binohlan, Crispina B. on 10.19.90
Modified by Musschoot, Tobias on 08.08.06
Checked by Torres, Armi G. on 09.19.95
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