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| Main Ref.: | Billard, R., 1997 | |||||||||||
| Data Reference: | Keith, P. and J. Allardi (coords.), 2001 | |||||||||||
| Land: | France | |||||||||||
| Spawning ground: | lacustrine | |||||||||||
| Observationsplats: | France | |||||||||||
| Season: |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 111 | 111 | 111 | 111 | |||||||||
| Sex ratio: | % Ref.: | |||||||||||
| Temperatur: | 18 - °C | |||||||||||
| Gestation period: | month/s | |||||||||||
| Avkommans längd: | cm | |||||||||||
| Batch spawners | ||||||||||||
| Daily spawning frequency |
- Mean: |
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Min Ref.: Max Ref.: Mean Ref.: |
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| Kommentarer: | Eggs are deposited on aquatic plants on the bottom. Spawns several times during the summer: 3 times when the temperature is low and up to 9 times during warm summers (Ref. 30578). 80000 to 120000 eggs/kg females. Spawning in shallow waters when the temperature reached 18°C. Up to 8 spawning cycles (Ref. 40476). | |||||||||||
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