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Main Ref: | Allardi, J. and P. Keith, 1991 | |||||||||||
Data Ref.: | ||||||||||||
Country: | France | |||||||||||
Spawning ground: | riverine | |||||||||||
Locality: | France | |||||||||||
Season: |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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: | Spawning takes place in water with a strong current, a depth of 2-10 m and a gravel bottom. The eggs, measuring 2.5-3.0 mm, are adhesive and remain temporarily attached to the gravel. Embryogenesis lasts 3-7 days, depending on the temperature (Ref. 30578). | |||||||||||
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