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The potential benefits of permanent magnets on ocean fish traps targeting snapper (Pagrus auratus) and their abiliy to reduce elasmobranch bycatch. The study deployed over 1000 traps in a fishery-dependent survey in New South Whales, Australia. The incorporation of magnets into fish traps significantly reduced incidences of elasmobranch bycatch by more than a thrid. At the same time, the target species catch rate was significantly increased. Magnets can therefore be used as an effective bycatch reduction device to reduce interactions with elasmobranchs.