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 | ||
| Article 9, Volume 27, Issue 1, January 2023, Pages 167-177 PDF (747.72 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejabf.2023.284416 | ||
| 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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