| Main Ref.: | Morrow, J.E., 1980 | |||||||||||
| Data Reference: | ||||||||||||
| Country: | ||||||||||||
| Spawning ground: | riverine | |||||||||||
| Locality: | Not specified | |||||||||||
| Season: |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 111 | 111 | 111 | 111 | 111 | 111 | 111 | 111 | |||||
| Sex ratio: | % Ref.: | |||||||||||
| Temperature: | - °C | |||||||||||
| Gestation period: | month/s | |||||||||||
| Length of offspring: | cm | |||||||||||
| Batch spawners | ||||||||||||
| Daily spawning frequency |
- Mean: |
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Min Ref.: Max Ref.: Mean Ref.: |
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| Comments: | Sockeyes spawn between July and December with water temperature between 3-7°C (Ref. 1998). It occurs almost exclusively in streams that connect with lakes, although some populations spawn in lakes and a few in streams with no lake. Lake spawners tend to breed later in the year than do stream spawners, but this is by no means universal (Ref. 27547). Kokanee on the other hand spawn from August to February, water temperature at 10°C and at depths of up to 9 m (Ref. 1998). It usually takes place in inlet or outlet streams, and sometimes in lakes near shore (Ref. 27547). Sockeye fecundity ranges from 2,500 to 4,300 per female; those of the kokanee from 300 to 500 (Ref. 27547). | |||||||||||