| Main Ref: | Durand, J.R., 1978 | |||||||||||
| Data Ref.: | ||||||||||||
| Country: | Chad | |||||||||||
| Spawning ground: | ||||||||||||
| Locality: | Logone-Chari | |||||||||||
| Season: (% mature females) |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 37 | 65 | 86 | 80 | 39 | 4 | |||||||
| Sex ratio: | 48.3 % Ref.: Durand, J.R., 1978 | |||||||||||
| 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 cycle from Tables XVI-XVIII of Ref. 2759 for maturity stages 3-4 GSI 1.5-16% from deltaic zone, upstream (Logone-Chari River), downstream (N'Djamena) and in the southeastern archipelago of Lake Chad. Spawning takes place from 16:30-20:00 h. Eggs spawned in one batch representing 15% of weight of female. Spawns in minor river bed, in full current. | |||||||||||