Reproduction of Oreochromis andersonii
Document source: http://fishbase.mnhn.fr/Reproduction/FishReproSummary.php?ID=1399&GenusName=Oreochromis&SpeciesName=andersonii&fc=349&StockCode=1425
 
Main Ref. Trewavas, E., 1983
Mode dioecism
Fertilization in mouth
Mating type
Spawning frequency one clear seasonal peak per year
Spawning aggregation Ref.  
Batch spawner Ref.  
Reproductive guild bearers
external brooders
Parental Care
Description of life cycle and mating behavior Spawning did not occur in ponds at a temperature below 21°C (Ref. 2). Rarely more than one brood in a season (Ref. 87, 246), but known to breed at least twice a year under pond conditions (Ref. 12524, 13337). Males excavate saucer-shaped nests (Ref. 246, 314, 6465, 12524, 13337, 54048) that can be up to 75cm in diameter and 30cm deep, using mouth and fins (Ref. 2, 314, 52307), in the center of their territory (Ref. 52307), on a sandy substrate (any vegetation is uprooted with its mouth) and in water from 1-3m deep, where they display to attract females (Ref. 12524, 13337, 54048). Up to 40 nests can be found together (Ref. 6465). Females are the primary care-givers (Ref. 52307), moutbrooding eggs, larvae and fry; multiple broods are raised during the warmer months (Ref. 7248, 52193). She lays her eggs in the concavity on top of the nest, the male fertilizes the eggs whereupon the female takes the eggs into her mouth where they are incubated; males guard the nest and females against all intruders; parental care is exercised for the first few weeks after the eggs hatch (Ref. 12524, 13337).
Search for more references on reproduction Scirus
(e.g. 9948)
( e.g. cephalopods )
Entered by Binohlan, Crispina B. on 10.19.90
Modified by Luna, Susan M. on 12.02.13
Checked by Torres, Armi G. on 09.19.95
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