Reproduction of Hydrolagus colliei
Document source: http://www.fishbase.org/Reproduction/FishReproSummary.php?ID=2589&GenusName=Hydrolagus&SpeciesName=colliei&fc=25&StockCode=2785
 
Main Ref. Armstrong, R.H., 1996
Mode dioecism
Fertilization internal (oviduct)
Spawning frequency throughout the year, but peaking once
Batch spawner Ref.  
Reproductive guild nonguarders
open water/substratum egg scatterers
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).
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Update
(e.g. 9948)
( e.g. cephalopods )
Entered by Garilao, Cristina V. on 03.12.99
Modified by Luna, Susan M. on 09.01.04
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