| Main Ref: | Vostradovsky, J., 1973 | |||||||||||
| Data Ref.: | ||||||||||||
| Country: | ||||||||||||
| Spawning ground: | riverine | |||||||||||
| Locality: | Europe | |||||||||||
| Season: |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 111 | 111 | |||||||||||
| Sex ratio: | % Ref.: | |||||||||||
| Temperature: | 12 - °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 at the end of May and the beginning of June, when the temperature rises above 12°C. Spawning is noisy because of the agitation of the parents (Ref. 30578). | |||||||||||