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Egyptian Journal of Aquatic Biology and Fisheries
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S. M. et al., E. (2021). Critical lengths and Fisheries management of Rhabdosargus haffara (Forsskål, 1775) from Hurghada fishing area, Red Sea, Egypt. Egyptian Journal of Aquatic Biology and Fisheries, 25(5), 57-67. doi: 10.21608/ejabf.2021.197171
El-Mahdy, S. M. et al.. "Critical lengths and Fisheries management of Rhabdosargus haffara (Forsskål, 1775) from Hurghada fishing area, Red Sea, Egypt". Egyptian Journal of Aquatic Biology and Fisheries, 25, 5, 2021, 57-67. doi: 10.21608/ejabf.2021.197171
S. M. et al., E. (2021). 'Critical lengths and Fisheries management of Rhabdosargus haffara (Forsskål, 1775) from Hurghada fishing area, Red Sea, Egypt', Egyptian Journal of Aquatic Biology and Fisheries, 25(5), pp. 57-67. doi: 10.21608/ejabf.2021.197171
S. M. et al., E. Critical lengths and Fisheries management of Rhabdosargus haffara (Forsskål, 1775) from Hurghada fishing area, Red Sea, Egypt. Egyptian Journal of Aquatic Biology and Fisheries, 2021; 25(5): 57-67. doi: 10.21608/ejabf.2021.197171

Critical lengths and Fisheries management of Rhabdosargus haffara (Forsskål, 1775) from Hurghada fishing area, Red Sea, Egypt

Article 4, Volume 25, Issue 5, September and October 2021, Page 57-67  XML PDF (858.55 K)
Document Type: Original Article
DOI: 10.21608/ejabf.2021.197171
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Author
El-Mahdy, S. M. et al.
Abstract
The present study aimed at determining the critical lengths and the population parameters required for the management of Rhabdosargus haffara in the Hurghada fishing area, Red Sea, Egypt. During the fishing season 2018-2019, 466 specimens of R. haffara were gathered monthly from the Hurghada landing site. The length at first capture (Lc) was 14.0 cm, while the length at first sexual maturity (Lm) was 17.9 cm. The Lc was greatly smaller than the Lm in an indication for heavy exploitation of this species. Total mortality (Z) was estimated to be 1.98/y, natural mortality (M) was 0.66/y, and accordingly, the fishing mortality (F) was 1.32/y. The rate of exploitation (E) was calculated at 0.67 in another indication for the overfishing status of the R. haffara stock in the Hurghada fishing ground, Egypt. The yield per recruit model was used to confirm the stock's overfishing status and to determine the optimal fishing mortality that could save this important fishery in the Egyptian Red Sea.
Keywords
Fisheries management Population dynamics; Rhabdosargus haffara; Hurghada; Red Sea; Egypt
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