Main Ref: | Takeshita, N. and S. Kimura, 1991 | |||||||||||
Data Ref.: | Takeshita, N. and S. Kimura, 1991 | |||||||||||
Country: | Japan | |||||||||||
Spawning ground: | riverine | |||||||||||
Locality: | Chikugo River | |||||||||||
Season: |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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: | The spawning run, mainly comprised of 4- and 5-year-old fish, from the tidal reaches to about 20 km upstream occurred in April (Ref. 35461). |