Reproduction of Narcine brasiliensis
Document source: http://www.fishbase.de/Reproduction/FishReproSummary.php?ID=2551&GenusName=Narcine&SpeciesName=brasiliensis&fc=503&StockCode=2747
 
Main Ref. Breder, C.M. and D.E. Rosen, 1966
Mode dioecism
Fertilization internal (oviduct)
Mating type
Spawning frequency
Spawning aggregation Ref.  
Batch spawner Ref.  
Reproductive guild bearers
internal live bearers
Parental Care
Description of life cycle and mating behavior Ovoviviparous. Sex ratio of embryos is about one to one, however, small mothers may have predominantly female embryos and that for a given mother, embryos tend to be of one sex (Ref. 46979). Maximum number of embryos per female may reach 15. The young are capable of giving off electric charges even before they are released from the womb (Ref. 46978).
Search for more references on reproduction Scirus
(e.g. 9948)
( e.g. cephalopods )
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