Reproduction of Thymallus arcticus
Document source: http://fishbase.mnhn.fr/Reproduction/FishReproSummary.php?ID=2693&GenusName=Thymallus&SpeciesName=arcticus&fc=76&StockCode=2889
 
Main Ref. Morrow, J.E., 1980
Mode dioecism
Fertilization external
Mating type
Spawning frequency
Spawning aggregation Ref.  
Batch spawner Ref.  
Reproductive guild nonguarders
brood hiders
Parental Care none
Description of life cycle and mating behavior Spawning adults move into tributaries and males establish territories. At spawning, the male follows a female, courting her with displays of his dorsal fin. He then drifts over beside her and curves his extended dorsal fin over the female. The pair vibrates and release eggs and milt. No redd is constructed, but the vibrations of the tails during the spawning act stirs up the substrate and produce a slight depression (Ref. 28876, 28879, 28880, 28881, 28882). A female may spawn only once, or several times in different areas (Ref. 1998). After spawning, adults establish summer territories in pools generally farther upstream from the spawning site, majority moving downstream in mid-September (Ref. 28885, 28886).
Search for more references on reproduction Scirus
(e.g. 9948)
( e.g. cephalopods )
Comments & Corrections
Back to Search


Publish in our journal partners Acta Ichthyologica et Piscatoria (Impact factor 2023: 1.17; link to old content 1970-2020), Journal of Applied Ichthyology (Impact factor 2022: 1.222) and Journal of Fish Biology (2.0, 2022 impact factor) the results of your primary research on fish growth, weight-length relationships, reproduction (maturity, fecundity, spawning), food and diet composition, introductions and range extensions for faster subsequent entry in FishBase.

cfm script by eagbayani, 21/08/01 ,  php script by rolavides, 11/02/08 ,  last modified by mbactong, 09/06/17