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Effect of pelagic longline bait type on species selectivity: a global synthesis of evidence ArchiMer
Gilman, Eric; Chaloupka, Milani; Bach, Pascal; Fennell, Hannah; Hall, Martin; Musyl, Michael; Piovano, Susanna; Poisson, Francois; Song, Liming.
Fisheries can profoundly affect bycatch species with ‘slow’ life history traits. Managing bait type offers one tool to control species selectivity. Different species and sizes of marine predators have different prey, and hence bait, preferences. This preference is a function of a bait’s chemical, visual, acoustic and textural characteristics and size, and for seabirds the effect on hook sink rate is also important. We conducted a global meta-analysis of existing estimates of the relative risk of capture on different pelagic longline baits. We applied a Bayesian random effects meta-analytic regression modelling approach to estimate overall expected bait-specific catch rates. For blue shark and marine turtles, there were 34% (95% HDI: 4–59%) and 60% (95%...
Tipo: Text Palavras-chave: Bait; Bycatch; Longline; Mitigation; Selectivity; Tuna.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00643/75536/76441.pdf
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