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| Main Ref: | Koli, L., 1990 | |||||||||||
| Data Ref.: | ||||||||||||
| Country: | Finland | |||||||||||
| Spawning ground: | ||||||||||||
| Locality: | Finland | |||||||||||
| Season: |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 111 | 111 | 111 | 111 | |||||||||
| Sex ratio: | % Ref.: | |||||||||||
| Temperature: | 20 - 22 °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: | Eggs mature in three periods: first, spawning occurs end of May; second, around midsummer (June); third, on the second week of July. Eggs are deposited on immerged vegetation or on gravel (Ref. 30578). | |||||||||||
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