Reproduction of Entosphenus tridentatus
Document source: http://fishbase.net.br/Reproduction/FishReproSummary.php?ID=2529&StockCode=2725
 
Main Ref. Scott, W.B. and E.J. Crossman, 1973
Mode dioecism
Fertilization external
Mating type polygyny
Spawning frequency once in a lifetime
Spawning aggregation Ref.  
Batch spawner Ref.  Renaud, C.B., 2011
Reproductive guild guarders
nesters
Parental Care
Description of life cycle and mating behavior In the spring following the migration into fresh water, a male and a female dig a nest. In the spawning act, the female attaches herself to a rock and the male fastens its sucker on the head of the female and coils around the female. The two then vibrate and eggs and sperms are released (Ref. 27547). Males spawn with more than one female in different nests (Ref. 1998). Adults die 1-14 days after spawning (Ref. 1998), while other sources say adults die 3-36 days after spawning (Ref. 89241). Larvae remain buried in the stream bottom for up to 5 or 6 years and return to the sea after changing into the adult form (Ref. 1998). The parasitic adults spend 12-20 months in the sea before moving upstream to spawn (Ref. 1998).
Search for more references on reproduction Scirus
(e.g. 9948)
( e.g. cephalopods )
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