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| Main Ref: | Wüstemann, O. and B. Kammerad, 1995 | |||||||||||
| Data Ref.: | ||||||||||||
| Country: | UK | |||||||||||
| Spawning ground: | riverine | |||||||||||
| Locality: | Northhamptonshire | |||||||||||
| Season: |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 111 | 111 | 111 | ||||||||||
| Sex ratio: | 0.8 % Ref.: Wüstemann, O. and B. Kammerad, 1995 | |||||||||||
| 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: | Prior to spawning fish migrate small diastances upstream or enter creeks. Spawning has not been observed directly yet and probably takes place during dusk or dawn. Eggs are of about 2 mm diameter; fertilized eggs become sticky ande are attached to stones. | |||||||||||
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