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| Main Ref.: | Kääriä, J., J. Eklund, S. Hallikainen, R. Kääriä, M. Rajasilta, K. Ranta-aho and M. Soikkeli, 1988 | |||||||||||
| Data Reference: | ||||||||||||
| Country: | Finland | |||||||||||
| Spawning ground: | coastal | |||||||||||
| Locality: | Baltic Sea | |||||||||||
| Season: |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 111 | 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: | Spring spawning Baltic herring population. Spawning grounds are mainly sandy and gravel bottoms and the most important ones are situated in the outer zones of the bays. | |||||||||||
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