Fish production in Oued Sebaou, a seasonal river in North Algeria
Fish were sampled by electrofishing at three contiguous sites 26 km from the source of Oued Sebaou, a seasonal river in North Algeria. River discharge ranges from 300 m 3 s −1 in the peak of the rainy season to 0.1 m 3 s −1 at the end of the dry season. Extensive gravel extraction from the river bed...
| Published in: | Journal of Fish Biology |
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| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Wiley
1984
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1111/j.1095-8649.1984.tb04918.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1984.tb04918.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1984.tb04918.x |
| Summary: | Fish were sampled by electrofishing at three contiguous sites 26 km from the source of Oued Sebaou, a seasonal river in North Algeria. River discharge ranges from 300 m 3 s −1 in the peak of the rainy season to 0.1 m 3 s −1 at the end of the dry season. Extensive gravel extraction from the river bed takes place during the dry season. Two species were recorded at each site: Barbus callensis , which is heavily fished locally, and Anguilla anguilla . The three sample maximum likelihood Zippin method was used to estimate mean density and standing crops, which were: barbel, 452 fish ha −1 , 5.33 kg ha −1 eels, 149 fish ha −1 , 3.04 kg ha −1 . Estimated average biomass and production were: barbel, 2.31 kg ha −1 , 4.27 kg ha −1 year −1 eels, 1.51 kg ha −1 , 2.60 kg ha −1 year −1 . |
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