SeaLifeBase
Fecundity of Oncorhynchus masou
Main Ref: Chyung, M.-K., 1977
Country:  
Locality: Korea
Ecosystem:
Absolute Fecundity Fecundity Type: 
  min   1,000 (g) (cm)   Ref: Chyung, M.-K., 1977
  max   2,000 (g) (cm)  
  mean     (g) (cm)  
Comments on Fecundity:
Relative Fecundity
Min: Ref.:
Mean: Ref.:
Max: Ref.:
Fecundity/length relationship ( F = a * L ^b):
  Size: (cm)  
  n:
  a: 95% confidence limit:  
  b: 95% confidence limit:  
  r2:  
Spawning Cycles: (1/y)   Ref:
Comments: Spawning occurs in the headwaters of rivers. The eggs require a water temperature of ~10° C for proper fertilization. Forty days later the water temperature can be lowered to ~8° C for an additional 60 to 90 days before the hatching occurs. Larvae live 1.5-2.0 years in rivers and go to the ocean in October through September; mature adults return 3 or 4 years later to freshwater rivers to spawn and then die.
Entered by: Johnson, Corey - 17.11.99
Modified by: Torres, Armi G. - 17.11.99
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