Fish production in Oued Sebaou, a seasonal river in North Algeria

• Published in: Journal of Fish Biology
• Main Authors: Penczak, T., Moliński, M.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 1984
• Subjects: Anguilla anguilla
• 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

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 .