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Main Ref: | Kottelat, M. and J. Freyhof, 2007 | |||||||||||
Data Ref.: | ||||||||||||
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Locality: | Europe | |||||||||||
Season: |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
111 | 111 | 111 | 111 | 111 | 111 | |||||||
Sex ratio: | % Ref.: | |||||||||||
Temperature: | 22 - 24 °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 temperatures above 19°C, mostly 22-24°C. In central Europe, spawning usually occurs in June-July. Several males pursue a female, which releases eggs in several portions above vegetation. Under suitable warm weather, females may spawn 1-9 times each year, every 11-15 days (Ref. 59043). | |||||||||||
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