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Toward Sustainable Fisheries: Assessing Catch per Unit Effort, Retained Bycatch, and Discard Ratios in the Red Sea Shrimp Trawl Fishery of the Kingdom of Saudi Arabia

Author

Listed:
  • Sirajudheen Thayyil Kadengal

    (Beacon Development Department, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia)

  • Tevfik Ceyhan

    (Faculty of Fisheries, Ege University, Bornova, 35100 Izmir, Türkiye)

  • Zafer Tosunoğlu

    (Beacon Development Department, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
    Faculty of Fisheries, Ege University, Bornova, 35100 Izmir, Türkiye)

  • Sheeja Gireesh

    (Beacon Development Department, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia)

  • Santhosh Kumar Charles

    (Beacon Development Department, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia)

  • Ronald Grech Santucci

    (Beacon Development Department, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia)

  • Adel M. S. Adam

    (Beacon Development Department, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia)

  • Eyüp Mümtaz Tıraşın

    (Beacon Development Department, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
    Institute of Marine Sciences and Technology, Dokuz Eylül University, Inciralti, 35340 Izmir, Türkiye)

  • Vahdet Ünal

    (Beacon Development Department, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
    Faculty of Fisheries, Ege University, Bornova, 35100 Izmir, Türkiye)

  • Mark Dimech

    (Beacon Development Department, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia)

Abstract

Shrimp trawl fishery is of significant importance in Saudi Arabia’s marine capture fishery sector. Al Qunfudhah and Jizan are the only ports along the southern Saudi Arabian coast of the Red Sea dedicated to shrimp fishing. This study evaluates the catch per unit effort (CPUE) of targeted shrimp species along with the associated retained bycatch and discard ratios across these two trawling locations. Using daily catch data from commercial shrimp trawlers specific to each port’s vessel type, this research provides the first comprehensive analysis of CPUE dynamics and fishing practices in these fishing grounds. The CPUE of target shrimps exhibited a wide range (0.01 kg h −1 to 13.08 kg h −1 ) with an overall mean of 1.37 ± 0.143 kg h −1 . Penaeus semisulcatus emerged as the predominant species (mean CPUE: 3.77 ± 0.28 kg h −1 ), followed by Metapenaeus monoceros (mean CPUE: 0.1 ± 0.02 kg h −1 ). Significant differences in CPUE were observed among species, including P. semisulcatus , Penaeus hathor , and Penaeus pulchricaudatus , although CPUE differences between the two fishing grounds were minor, likely due to their proximity and similar environmental conditions. The bycatch analysis identified a total of 72 species across 28 families, with significant variation in the relative ratios. Sepiidae species constituted 31.8% of the total bycatch, followed by Portunidae species (24.8%). Discard patterns also varied, with Gerres oyena being the most commonly discarded species (mean discard ratio: 11.37% ± 1.89%), followed by Equulites klunzingeri (mean discard ratio: 8.76% ± 2.00%). While CPUE differences between Al Qunfudhah and Jizan were modest, this study highlights the need for expanded spatial and temporal coverage to enhance future analyses. These findings underscore the importance of integrated data for a comprehensive understanding of fishing effort and bycatch dynamics, supporting sustainable fisheries management in the Red Sea. By addressing bycatch and discard practices, this research contributes to efforts to mitigate ecological impacts and promote sustainable resource use in Saudi Arabia’s fisheries sector.

Suggested Citation

  • Sirajudheen Thayyil Kadengal & Tevfik Ceyhan & Zafer Tosunoğlu & Sheeja Gireesh & Santhosh Kumar Charles & Ronald Grech Santucci & Adel M. S. Adam & Eyüp Mümtaz Tıraşın & Vahdet Ünal & Mark Dimech, 2024. "Toward Sustainable Fisheries: Assessing Catch per Unit Effort, Retained Bycatch, and Discard Ratios in the Red Sea Shrimp Trawl Fishery of the Kingdom of Saudi Arabia," Sustainability, MDPI, vol. 16(23), pages 1-12, November.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:23:p:10285-:d:1528175
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    References listed on IDEAS

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    1. Davies, R.W.D. & Cripps, S.J. & Nickson, A. & Porter, G., 2009. "Defining and estimating global marine fisheries bycatch," Marine Policy, Elsevier, vol. 33(4), pages 661-672, July.
    2. Macfadyen, Graeme & Banks, Richard & Davies, Robin, 2013. "Tropical shrimp trawling: Developing a management blueprint and adapting and implementing it in specific countries and fisheries," Marine Policy, Elsevier, vol. 40(C), pages 25-33.
    3. Daniel Pauly & Villy Christensen & Sylvie Guénette & Tony J. Pitcher & U. Rashid Sumaila & Carl J. Walters & R. Watson & Dirk Zeller, 2002. "Towards sustainability in world fisheries," Nature, Nature, vol. 418(6898), pages 689-695, August.
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