Main Ref.: | Morrow, J.E., 1980 | |||||||||||
Data Reference: | ||||||||||||
Country: | ||||||||||||
Spawning ground: | lacustrine | |||||||||||
Locality: | Not specified | |||||||||||
Season: |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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: | Spawns in the fall, the exact time varying with latitude and temperature (Ref. 27547). It occurs mainly in lakes but a few populations are known to spawn in streams tributary to Lake Superior (Ref. 28811). Lake trout show a marked tendency to return to their natural spawning areas (Ref. 28808, 28811, 30356, 30357), and spawn over clean rocky bottoms with depths of less than a meter (Ref. 28804, 28805, 28806) to as deep as 36 m (Ref. 28808). Fecundity varies from a few hundred to more than 17,000 eggs, the number increasing with the size of the fish (Ref. 28808). |