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Egyptian Journal of Aquatic Biology and Fisheries
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Badr El-Bokhty, E., Fetouh, M. (2023). Some biological aspects of Oreochromis niloticus and Oreochromis aureus caught by trammel nets from El-Salam Canal, Egypt. Egyptian Journal of Aquatic Biology and Fisheries, 27(1), 167-177. doi: 10.21608/ejabf.2023.284416
El-Azab E. Badr El-Bokhty; Mohamed A. Fetouh. "Some biological aspects of Oreochromis niloticus and Oreochromis aureus caught by trammel nets from El-Salam Canal, Egypt". Egyptian Journal of Aquatic Biology and Fisheries, 27, 1, 2023, 167-177. doi: 10.21608/ejabf.2023.284416
Badr El-Bokhty, E., Fetouh, M. (2023). 'Some biological aspects of Oreochromis niloticus and Oreochromis aureus caught by trammel nets from El-Salam Canal, Egypt', Egyptian Journal of Aquatic Biology and Fisheries, 27(1), pp. 167-177. doi: 10.21608/ejabf.2023.284416
Badr El-Bokhty, E., Fetouh, M. Some biological aspects of Oreochromis niloticus and Oreochromis aureus caught by trammel nets from El-Salam Canal, Egypt. Egyptian Journal of Aquatic Biology and Fisheries, 2023; 27(1): 167-177. doi: 10.21608/ejabf.2023.284416

Some biological aspects of Oreochromis niloticus and Oreochromis aureus caught by trammel nets from El-Salam Canal, Egypt

Article 9, Volume 27, Issue 1, January 2023, Page 167-177  XML PDF (747.72 K)
Document Type: Original Article
DOI: 10.21608/ejabf.2023.284416
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Authors
El-Azab E. Badr El-Bokhty; Mohamed A. Fetouh
Abstract
This preliminary study is the first concerning length-weight, condition factor, relative condition factor and length-girth relationships of two tilapia fish (Oreochromis niloticus and Oreochromis aureus) caught by trammel nets from El-Salam Canal. The results of the length-weight relationship showed slightly negative asymmetric growth for both species. The average condition factor (K) was 1.70 (±0.12), and 1.72 (±0.14) for  O. niloticus and O. aureus, respectively. The relative condition factor (Kn) averaged 1.00 (±0.05) for O. niloticus and 1.01 (±0.04) for O. aureus. These values suggested a good condition for these two species. The values of exponent (b)of length-girth relationships ranged from 0.722  for O. aureus to 0.823 for O. niloticus. These results may be helpful for the fishery and biological management of the two species.
Keywords
El-Salam Canal; Trammel nets; Condition factor; Oreochromis niloticus; Oreochromis aureus
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