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How do fishing practices influence sperm whale (Physeter macrocephalus) depredation on demersal longline fisheries? ArchiMer
Janc, Anais; Richard, Gaetan; Guinet, Christophe; Arnould, John P. Y.; Villanueva, Ching-maria; Duhamel, Guy; Gasco, Nicolas; Tixier, Paul.
Marine mammal depredation on fisheries (animals removing fish caught on fishing gear) is a worldwide issue involving socio-economic and ecological consequences. Longline fisheries are the most impacted by odontocete (toothed whales) depredation. While technological means have provided limited efficacy in reducing depredation, this study examined the fishing practices influencing both the proportion of depredated longline sets and the amount of fish removed by whales. We used an 8-year dataset from the Patagonian toothfish (Dissostichus eleginoides) longline fisheries operating in Crozet and Kerguelen Economic Exclusive Zones (EEZs) (South Indian Ocean) and GLMMs to investigate sperm whale (Physeter macrocephalus) depredation. Sperm whale depredation...
Tipo: Text Palavras-chave: Depredation; Demersal longline; Sperm whale; Patagonian toothfish; Fishing practices.
Ano: 2018 URL: http://archimer.ifremer.fr/doc/00439/55070/56795.pdf
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