Reproduction of Gasterosteus aculeatus
Document source: http://fishbase.sinica.edu.tw/Reproduction/FishReproSummary.php?ID=2420&GenusName=Gasterosteus&SpeciesName=aculeatus&fc=260&StockCode=2615
 
Main Ref. Balon, E.K., 1990
Mode dioecism
Fertilization external
Mating type promiscuity
Spawning frequency one clear seasonal peak per year
Batch spawner Yes.   Ref.  Morrow, J.E., 1980
Reproductive guild guarders
nesters
Parental Care paternal
Description of life cycle and mating behavior Spawning behavior is similar for both freshwater and anadromous forms (Ref. 28966). Just before breeding, males become very territorial. The male builds a nest of plant-material glued together with spiggin, a protein produced in the kidney (Ref. 52349). Once a nest is built, the male entices the female into the nest by performing a courtship dance which is a series of zigzag movements (Ref. 1998). A receptive female follows the male who points the opening of the nest by posing above it with his head down. The female enters the nest, deposits up to a few hundred eggs, and is driven out by the male after eggs have been deposited. The male then enters the nest to fertilize the eggs. The male can choose to court another female to enter the nest and lay eggs before entering himself to fertilise the deposited eggs. Females may lay eggs in several nests over a period of several days or may be courted by the same male (Ref. 27547). The male guards and ventilates the eggs and young (Ref. 1998). During spawning season, males develop a bright orange to red belly and blue-green flank and eyes. Eggs hatch in 7-8 days. Anadromous forms usually die of exhaustion after spawning cycle. Freshwater individuals are able to complete several cycles within one year or sometimes over several years (Ref. 59043).
Search for more references on reproduction Scirus
(e.g. 9948)
( e.g. cephalopods )
Entered by Luna, Susan M. on 03.05.91
Modified by Torres, Armi G. on 04.29.14
Checked by Borg, Bertil on 11.10.04
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