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Spawning of Catostomus catostomus
Main Ref: Geen, G.H., T.G. Northcote, G.F. Hartman and C.C. Lindsey, 1966
Data Ref.: Geen, G.H., T.G. Northcote, G.F. Hartman and C.C. Lindsey, 1966
Country: Canada
Spawning ground: riverine
Locality: Frye Creek, British Columbia
Season:
   		 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
        111 111            
Sex ratio:    %  Ref.:   
Temperature: 5 -   °C
Gestation period: month/s
 
Length of offspring: cm
Batch spawners
Daily spawning frequency -
Mean:
Min Ref.:
Max Ref.:
Mean Ref.:
Comments: The sex ratio of migrating adults is fairly constant, with the number of females always exceeding the number of males. Spawning run commences when daily maximum stream temperature exceeds 5°C and extends for 2-3 weeks in May and early June and occurs over gravel or silt bottoms (Ref. 10928).
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