Length based data-limited methods: Application on the Atlantic bonito, Sarda sarda (Bloch, 1793) in Morocco | ||||
| Egyptian Journal of Aquatic Biology and Fisheries | ||||
| Article 37, Volume 26, Issue 1, January and February 2022, Page 609-627 PDF (1.27 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejabf.2022.222756 | ||||
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| Author | ||||
| Sidahmed Baibbat et al. | ||||
| Abstract | ||||
| In Morocco, the Atlantic bonito is one of the most landed species on the South Atlantic, with an average catch of about 4,000t per year. To assess the stock of this species, a study was conducted addressing three models of Sarda sarda (Bloch,1793), based on size frequencies. Data were determined with respect to the series of size data collected during the period from 2014 to 2019. The species under study, specifically the spawning individuals were exposed to continuous pressure over time. The LBSPR (Length bases spawning potential ratio) model displayed an exploitation rate of 69%, whereas the catch curve showed an exploitation rate of 68%. Interestingly, the most optimistic model length cohort analysis/yield per recruitment (LCA/YPR) recorded a 54% exploitation rate, which is still worrying. | ||||
| Keywords | ||||
| Data-limited methods; Size frequency; Atlantic bonito; Management; Spawning potential ratio | ||||
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