Main Ref.: | Jones, P.W., F.D. Martin and J.D. Hardy Jr., 1978 | |||||||||||
Data Reference: | Bigelow, H.B. and W.C. Schroeder, 1953 | |||||||||||
Country: | USA | |||||||||||
Spawning ground: | riverine | |||||||||||
Locality: | Maryland | |||||||||||
Season: |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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: | Spawning lasts only a few days for each spawning group (Ref. 7135). Fecundity estimated at an average of 102,800 in Potomac River (Ref. 38884). |