| FishBase |
| Main Ref: | Billard, R., 1997 | ||||||||||||
| Country: | France | ||||||||||||
| Locality: | France | ||||||||||||
| Ecosystem: | |||||||||||||
| Absolute Fecundity | Fecundity Type: | ||||||||||||
| min 10,000 | (g) | (cm) | Ref: Kottelat, M. and J. Freyhof, 2007 | ||||||||||
| max 42,000 | (g) | (cm) | |||||||||||
| mean | (g) | (cm) | |||||||||||
| Comments on Fecundity: | |||||||||||||
| Relative Fecundity | |||||||||||||
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| Fecundity/length relationship ( F = a * L ^b): | |||||||||||||
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| a: | 95% confidence limit: | ||||||||||||
| b: | 95% confidence limit: | ||||||||||||
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| Spawning Cycles: | (1/y) | Ref: | |||||||||||
| Comments: | Spawning occurs after migration. Spawning takes place in running water over a gravel bottom. Fecundity is in the order of 40,000 eggs of 1 mm size per female. The larvae are blind and acquire functional eyes before migrating to see at the age of 3 to 5 years (Ref. 30578). Spawning starts at 9 deg. C (Ref. 59043). | ||||||||||||
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