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Main Ref: | Kottelat, M. and J. Freyhof, 2007 | |||||||||||
Data Ref.: | ||||||||||||
Country: | Switzerland | |||||||||||
Spawning ground: | lacustrine | |||||||||||
Locality: | not specified | |||||||||||
Season: |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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: | Males reproduce initially at 3-4 years, females at 5. Spawns on gravel near shore or, depending on population, in depths up to 50 m. Spawning time depends on depth and apparentl;y on temperature at that location, from November to December in shallow water to February in deepest places (Ref. 59043). | |||||||||||
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