Reproduction of Hydrolagus colliei
Document source: http://fishbase.mnhn.fr/Reproduction/FishReproSummary.php?ID=2589&StockCode=2785
 
Main Ref. Armstrong, R.H., 1996
Mode dioecism
Fertilization internal (oviduct)
Mating type
Spawning frequency throughout the year, but peaking once
Spawning aggregation Ref.  
Batch spawner Ref.  
Reproductive guild nonguarders
open water/substratum egg scatterers
Parental Care none
Description of life cycle and mating behavior Distinct pairing during copulation (Ref. 205). The female extrudes two eggs at a time (each contained in a capsule) and may take up to 30 hours to extrude all her egg cases, which then hang from her body on a long filament for another 4 to 6 days. The egg cases end up planted vertically in the mud or just lying with filaments entangled on the bottom. Females extruding egss can be found year-round (Ref. 28499).
Search for more references on reproduction Scirus
(e.g. 9948)
( e.g. cephalopods )
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