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Main Ref: | Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba, 1990 | |||||||||||
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Locality: | Not specified | |||||||||||
Season: |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
111 | 111 | 111 | 111 | 111 | 111 | 111 | ||||||
Sex ratio: | % Ref.: | |||||||||||
Temperature: | 0.6 - 1.7 °C | |||||||||||
Gestation period: | month/s | |||||||||||
Length of offspring: | cm | |||||||||||
Batch spawners | ||||||||||||
Daily spawning frequency |
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Min Ref.: Max Ref.: Mean Ref.: |
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Comments: | Depending on geographical location, actual spawning period may be as early as November and as late as May, at surface temperatures of 0.6-1.7°C. It occurs in shallow water (0.3 to more than 1.5 m but sometimes 18 to 20 m deep, Ref. 28890), over sand and gravel, usually under the ice. An average female will produce 500,000 to 750,000 eggs (Ref. 28695, 28698, 28699). | |||||||||||
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