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Vulnerability of marine resources affected by a small-scale tropical shrimp fishery in Northeast Brazil

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dc.creator Lira, A. S.
dc.creator /Le Loc'h, François
dc.creator Andrade, H. A.
dc.creator Lucena-Fredou, F.
dc.date 2022
dc.date.accessioned 2022-04-27T17:37:54Z
dc.date.available 2022-04-27T17:37:54Z
dc.identifier https://www.documentation.ird.fr/hor/fdi:010084369
dc.identifier oai:ird.fr:fdi:010084369
dc.identifier Lira A. S., Le Loc'h François, Andrade H. A., Lucena-Fredou F.. Vulnerability of marine resources affected by a small-scale tropical shrimp fishery in Northeast Brazil. 2022, [Early access], p. [15 p.]
dc.identifier.uri http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/169154
dc.description Tropical fisheries tend to be multispecies and require management approaches adapted to high diversity but scarce and poorly informative data. Productivity and Susceptibility Analysis-PSA is particularly useful where catch or biological data are incomplete, aggregated across species or insufficient for quantitative stock assessment. We applied PSA to estimate vulnerability and potential risk to target and non-target species caught by the small-scale shrimp fishery in northeast Brazil, adapting the method to regional conditions and incorporating an assessment of uncertainties caused by its subjective choices. Our findings suggest that non-target species can be more vulnerable than target ones. Bagre marinus, Pseudobatos percellens, Micropogonias furnieri, Hypanus guttatus, Macrodon ancylodon, Polydactylus virginicus, Rhizoprionodon porosus, Cynoscion virescens, Larimus breviceps, and Menticirrhus americanus, were the top 10 species potentially at risk due to their low productivity (long lifespans, low spawning), high capture rates of juveniles and overlap of feeding and breeding grounds with fishing areas. Most species (76%) maintained the same risk category (low, moderate, or high) regardless of the score weighting or productivity and susceptibility attribute boundaries applied. Overall, the target species are not currently the main ones threatened, but bycatch such as elasmobranchs, catfishes and Scianidae should be prioritized for assessment and data collection.
dc.language EN
dc.subject artisanal fisheries
dc.subject bycatch
dc.subject productivity susceptibility analysis
dc.subject shrimp
dc.subject tropical fisheries
dc.subject trawling
dc.title Vulnerability of marine resources affected by a small-scale tropical shrimp fishery in Northeast Brazil
dc.type text
dc.coverage BRESIL
dc.coverage ATLANTIQUE
dc.coverage ZONE TROPICALE


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