Reproduction of Silurus asotus
Document source: http://fishbase.mnhn.fr/Reproduction/FishReproSummary.php?ID=6566&GenusName=Silurus&SpeciesName=asotus&fc=132&StockCode=6887
 
Main Ref. Katano, O., K. Saitoh and A. Koizumi, 1989
Mode dioecism
Fertilization external
Mating type monogamy:
Spawning frequency
Spawning aggregation Ref.  
Batch spawner Ref.  
Reproductive guild nonguarders
open water/substratum egg scatterers
Parental Care none
Description of life cycle and mating behavior Pairs manifest spawning embrace widely observed in other catfish species (Ref. 37360). Details of reproductive behaviour from Katano, et al (1988): " A male first energeticaly pursued a female with its head near to the female's belly (chasing) and then began to cling to the female's body from the side, bending its tail or head (clinging). Finally the male enfolded the female's body, with its anus near to the female's (enfolding). In some cases, 2-4 males pursued a single female and two males enfolded a female at the same time. Although no aggressive behaviour was evident between males, it was always the largest male that could almost frequently approach and enfold the female. The mating pair moved a long distance in a ditch, paddy field and/or creek, performing reproductive activities." The scattering of eggs may reduce the incidence of death of the young.
Search for more references on reproduction Scirus
(e.g. 9948)
( e.g. cephalopods )
Entered by Luna, Susan M. on 11.03.01
Modified by Luna, Susan M. on 08.16.17
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