The stock status of narrow-barred Spanish mackerel, Scomberomorus commerson (Lacépède, 1800) in the southern Arabian Gulf: a case study using multiple length-based assessment approaches
This study evaluates the stock status of Scomberomorus commerson in the southern Arabian Gulf, particularly in Abu Dhabi waters, using length-based models to address data limitations in fisheries assessments. The findings contribute critical insights into management practices using four length-based...
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Frontiers Media S.A.
2025-01-01
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| Series: | Frontiers in Marine Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2024.1492238/full |
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| author | Mohamed AlMusallami Mark Dimech Franklin Francis Waleed Hamza Aaron C. Henderson Sabir Bin Muzaffar Giuseppe Scarcella Nazli Demirel Dario Pinello |
| author_facet | Mohamed AlMusallami Mark Dimech Franklin Francis Waleed Hamza Aaron C. Henderson Sabir Bin Muzaffar Giuseppe Scarcella Nazli Demirel Dario Pinello |
| author_sort | Mohamed AlMusallami |
| collection | DOAJ |
| description | This study evaluates the stock status of Scomberomorus commerson in the southern Arabian Gulf, particularly in Abu Dhabi waters, using length-based models to address data limitations in fisheries assessments. The findings contribute critical insights into management practices using four length-based models, namely, LBI, LBB, LBSPR, and LIME, to analyze length frequency distributions from commercial catches between 2011 and 2023. The results indicate that the stock is overfished, with low proportions of mature and optimal-sized individuals and an excessive harvest of juveniles, as shown by the model estimates of F/M ratios and SPR values below target levels. From 2011 to 2019, the biomass declined sharply, but signs of recovery were evident by 2023 due to management actions, such as a gillnet ban introduced in 2019. The final-year estimates revealed a B/Bmsy ratio of 1.0 and F/M of 1.2, suggesting ongoing but reduced overfishing pressures. These outcomes underscore the importance of ongoing data-limited assessment methods in monitoring exploited stocks, providing evidence that restrictive measures have positively impacted biomass recovery. The convergence of outputs across methods, such as the indication of overfishing in S. commerson stocks, suggests that implementing multiple models enhances the robustness of management recommendations, including the enforcement of minimum size limits or reductions in fishing efforts or restriction of certain fishing methods. Overall, this study highlights the importance of using multiple models and choosing appropriate priors to improve the quality of stock assessments in data-limited fisheries. |
| format | Article |
| id | doaj-art-9168c500c64c45a18bec99806b591ff4 |
| institution | Kabale University |
| issn | 2296-7745 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj-art-9168c500c64c45a18bec99806b591ff42025-01-10T10:44:00ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452025-01-011110.3389/fmars.2024.14922381492238The stock status of narrow-barred Spanish mackerel, Scomberomorus commerson (Lacépède, 1800) in the southern Arabian Gulf: a case study using multiple length-based assessment approachesMohamed AlMusallami0Mark Dimech1Franklin Francis2Waleed Hamza3Aaron C. Henderson4Sabir Bin Muzaffar5Giuseppe Scarcella6Nazli Demirel7Dario Pinello8Environment Agency – Abu Dhabi, Abu Dhabi, United Arab EmiratesBeacon Development Department, King Abdullah University of Science and Technology, Thuwal, Saudi ArabiaEnvironment Agency – Abu Dhabi, Abu Dhabi, United Arab EmiratesBiology Department, United Arab Emirates University, Al-Ain, United Arab EmiratesBiology Department, United Arab Emirates University, Al-Ain, United Arab EmiratesBiology Department, United Arab Emirates University, Al-Ain, United Arab EmiratesInstitute for Marine Biological Resources and Biotechnology of the National Research Council (CNR-IRBIM), Ancona, ItalyInstitute of Marine Sciences and Management, Istanbul University, Istanbul, TürkiyeEnvironment Agency – Abu Dhabi, Abu Dhabi, United Arab EmiratesThis study evaluates the stock status of Scomberomorus commerson in the southern Arabian Gulf, particularly in Abu Dhabi waters, using length-based models to address data limitations in fisheries assessments. The findings contribute critical insights into management practices using four length-based models, namely, LBI, LBB, LBSPR, and LIME, to analyze length frequency distributions from commercial catches between 2011 and 2023. The results indicate that the stock is overfished, with low proportions of mature and optimal-sized individuals and an excessive harvest of juveniles, as shown by the model estimates of F/M ratios and SPR values below target levels. From 2011 to 2019, the biomass declined sharply, but signs of recovery were evident by 2023 due to management actions, such as a gillnet ban introduced in 2019. The final-year estimates revealed a B/Bmsy ratio of 1.0 and F/M of 1.2, suggesting ongoing but reduced overfishing pressures. These outcomes underscore the importance of ongoing data-limited assessment methods in monitoring exploited stocks, providing evidence that restrictive measures have positively impacted biomass recovery. The convergence of outputs across methods, such as the indication of overfishing in S. commerson stocks, suggests that implementing multiple models enhances the robustness of management recommendations, including the enforcement of minimum size limits or reductions in fishing efforts or restriction of certain fishing methods. Overall, this study highlights the importance of using multiple models and choosing appropriate priors to improve the quality of stock assessments in data-limited fisheries.https://www.frontiersin.org/articles/10.3389/fmars.2024.1492238/fulldata limitedstock assessmentreference pointssustainabilityfisheries management |
| spellingShingle | Mohamed AlMusallami Mark Dimech Franklin Francis Waleed Hamza Aaron C. Henderson Sabir Bin Muzaffar Giuseppe Scarcella Nazli Demirel Dario Pinello The stock status of narrow-barred Spanish mackerel, Scomberomorus commerson (Lacépède, 1800) in the southern Arabian Gulf: a case study using multiple length-based assessment approaches Frontiers in Marine Science data limited stock assessment reference points sustainability fisheries management |
| title | The stock status of narrow-barred Spanish mackerel, Scomberomorus commerson (Lacépède, 1800) in the southern Arabian Gulf: a case study using multiple length-based assessment approaches |
| title_full | The stock status of narrow-barred Spanish mackerel, Scomberomorus commerson (Lacépède, 1800) in the southern Arabian Gulf: a case study using multiple length-based assessment approaches |
| title_fullStr | The stock status of narrow-barred Spanish mackerel, Scomberomorus commerson (Lacépède, 1800) in the southern Arabian Gulf: a case study using multiple length-based assessment approaches |
| title_full_unstemmed | The stock status of narrow-barred Spanish mackerel, Scomberomorus commerson (Lacépède, 1800) in the southern Arabian Gulf: a case study using multiple length-based assessment approaches |
| title_short | The stock status of narrow-barred Spanish mackerel, Scomberomorus commerson (Lacépède, 1800) in the southern Arabian Gulf: a case study using multiple length-based assessment approaches |
| title_sort | stock status of narrow barred spanish mackerel scomberomorus commerson lacepede 1800 in the southern arabian gulf a case study using multiple length based assessment approaches |
| topic | data limited stock assessment reference points sustainability fisheries management |
| url | https://www.frontiersin.org/articles/10.3389/fmars.2024.1492238/full |
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