Efficacy of a novel shark bycatch mitigation device in a tuna longline fishery
Philip D. Doherty, Robert Enever, Lucy C. M. Omeyer, Lydia Tivenan, Grant Course, Guy Pasco, Thomas David, Ben Sullivan, Ben Kibel, Pete Kibel, Brendan J. Godley
Abstract
. This threat necessitates mitigation strategies that exist for sharks but are often focussed on haul-back and post-capture effects for longline fishing. We trialled a novel shark bycatch mitigation device ("SharkGuard") in a commercial longline fishery targeting bluefin tuna (Thunnus thynnus), where bycatch consists largely of blue sharks (Prionace glauca) and pelagic stingrays (Pteroplatytrygon violacea).
Topics & Concepts
BycatchFisheryTunaThunnusBiologyFishingPelagic zoneThreatened speciesPopulationScombridaeEcologyFish <Actinopterygii>SociologyHabitatDemographyIchthyology and Marine BiologyFish Ecology and Management StudiesMarine and fisheries research