Reproduction of Opsariichthys pachycephalus
Document source: http://fishbase.mnhn.fr/Reproduction/FishReproSummary.php?ID=17305&GenusName=Opsariichthys&SpeciesName=pachycephalus&fc=122&StockCode=15540
 
Main Ref. Wang, J.-T., M.-C. Liu and L.-S. Fang, 1995
Mode dioecism
Fertilization external
Mating type
Spawning frequency two seasonal peaks per year
Spawning aggregation Ref.  
Batch spawner Yes.   Ref.  Wang, J.-T., M.-C. Liu and L.-S. Fang, 1995
Reproductive guild nonguarders
open water/substratum egg scatterers
Parental Care none
Description of life cycle and mating behavior Mating behavior: Usually begins with fighting among males. Only one mates. Females rest on sandy ground and the male presses her belly. This makes the female tilt with her anus closer to the male. The male vibrates and releases the sperm. Subordinate males often join the spawning pair, perhaps to release their sperm.
Search for more references on reproduction Scirus
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