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| Main Ref: | Scott, W.B. and E.J. Crossman, 1973 | |||||||||||
| Data Ref.: | Jacobs, D.L., 1948 | |||||||||||
| Country: | USA | |||||||||||
| Spawning ground: | ||||||||||||
| Locality: | Southern Minnesota | |||||||||||
| Season: |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 111 | 111 | 111 | ||||||||||
| Sex ratio: | % Ref.: | |||||||||||
| Temperature: | 8 - 19 °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 occurs later in northerly latitudes (Ref. 10332). Experiments suggest that spawning is inhibited when temp. is greater than 19°C (Ref. 10332). | |||||||||||
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