FN Archimer Export Format PT J TI Post‐release survival of shortfin mako ( Isurus oxyrinchus ) and silky ( Carcharhinus falciformis ) sharks released from pelagic tuna longlines in the Pacific Ocean BT AF Francis, Malcolm P. Lyon, Warrick S. Clarke, Shelley C. Finucci, Brittany Hutchinson, Melanie R. Campana, Steven E. Musyl, Michael K. Schaefer, Kurt M. Hoyle, Simon D. Peatman, Tom Bernal, Diego Bigelow, Keith Carlson, John Coelho, Rui Heberer, Craig Itano, David Jones, Emma Leroy, Bruno Liu, Kwang‐Ming Murua, Hilario Poisson, Francois Rogers, Paul Sanchez, Caroline Semba, Yasuko Sippel, Tim Smith, Neville AS 1:1;2:2;3:3;4:1;5:4;6:5;7:6;8:7;9:8,9;10:10;11:11;12:12;13:13;14:14;15:15;16:16;17:17;18:10;19:18;20:19;21:20;22:21;23:10;24:22;25:23;26:10; FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;14:;15:;16:;17:;18:;19:;20:;21:PDG-RBE-MARBEC-LHM;22:;23:;24:;25:;26:; C1 National Institute of Water and Atmospheric Research, Wellington ,New Zealand Lyon Marine Research Ltd ,Wellington, New Zealand Sasama Consulting, Shizuoka ,Japan Joint Institute for Marine and Atmospheric Research University of Hawaii, Pacific Islands Fisheries Science Center Honolulu Hawaii, USA University of Iceland ,Reykjavik,Iceland Pelagic Research Group LLC ,Honolulu Hawaii , USA Inter‐American Tropical Tuna Commission, La Jolla California, USA National Institute of Water and Atmospheric Research, Nelson ,New Zealand University of Auckland, Department of Statistics Auckland ,New Zealand The Pacific Community ,Noumea ,New Caledonia University of Massachusetts ,Dartmouth Dartmouth MA,USA NOAA, Fisheries ‐ Pacific Islands Fisheries Science Center Honolulu HI ,USA NOAA,Fisheries ‐ Southeast Fisheries Science Center Panama City FL,USA IPMA ,‐ Portuguese Institute for the Ocean and Atmosphere Olhão, Portugal The Nature Conservancy, Large Scale Fisheries Program San Diego California ,USA The Nature Conservancy, Large Scale Fisheries Program Honolulu Hawaii ,USA National Institute of Water and Atmospheric Research, Auckland ,New Zealand National Taiwan Ocean University ,Keelung ,Taiwan International Seafood Sustainability Foundation (ISSF), Pittsburgh Pennsylvania, USA MARBEC ,Université de Montpellier ,Sète,France Southern Fishery Solutions, South Australia National Research and Development Agency, Japan Fisheries Research and Education Kanagawa Pref, Japan Washington Department of Fish and Wildlife ‐ Region 5,Vancouver Washington,USA C2 NIWA, NEW ZEALAND LYON MARINE RESEARCH LTD, NEW ZEALAND SASAMA CONSULTING, JAPAN UNIV HAWAII, USA UNIV ICELAND, ICELAND PELAGIC RESEARCH GROUP LLC, USA IATTC, USA NIWA, NEW ZEALAND UNIV AUCKLAND, NEW ZEALAND PACIFIC COMMUNITY, FRANCE UNIV MASSACHUSETTS, USA NOAA, USA NOAA, USA IPMA, PORTUGAL NATURE CONSERVANCY, USA NATURE CONSERVANCY, USA NIWA, NEW ZEALAND UNIV NATL OCEAN TAIWAN, TAIWAN ISSF, USA IFREMER, FRANCE SOUTHERN FISHERY SOLUTIONS, AUSTRALIA FRA, JAPAN WASHINGTON DEPART FISH WILDLIFE, USA SI SETE SE PDG-RBE-MARBEC-LHM UM MARBEC IN WOS Ifremer UMR copubli-france copubli-europe copubli-int-hors-europe IF 2.4 TC 3 UR https://archimer.ifremer.fr/doc/00823/93486/100231.pdf https://archimer.ifremer.fr/doc/00823/93486/100232.docx LA English DT Article DE ;bycatch;fisheries management;fishing mortality best practices;high seas;no retention policy;pelagic shark;RFMO AB Substantial global population declines in pelagic sharks have led to the introduction of management and conservation measures, including gear restrictions and no-retention policies, to curb declines and encourage stock recovery. As the rate of discarding sharks increases, there is a growing need to understand prognostic factors that influence their post-release survival (PRS) outcomes. PRS was measured with survival pop-up satellite archival tags attached to shortfin mako (Isurus oxyrinchus) and silky sharks (Carcharhinus falciformis) released or discarded from pelagic tuna longline fishing vessels operating in the Western and Central Pacific Fisheries Commission Convention Area. In total, 117 tags were deployed on 60 mako and 57 silky sharks captured as bycatch during commercial pelagic longline fishing trips in New Zealand (n = 35), Fiji (n = 58), New Caledonia (n = 10) and the Republic of the Marshall Islands (n = 14). Mako engaged in long-distance movements between New Zealand, Australia, Fiji and New Caledonia, while silky sharks tagged in the Marshall Islands showed evidence of seasonal movements eastward. PRS was determined for 110 sharks (57 mako, 53 silky sharks). Most tagged sharks of both species were uninjured (89%) at capture and most sharks (88%) survived post-release until tag loss or the programmed pop-up date (60 days). However, when considering a complete fishing interaction (haulback, handling, release), PRS estimates were markedly reduced to 48.6% and 52.3% for mako and silky sharks, respectively. For both species, survivorship was greater in large (>150 cm fork length) uninjured sharks and sharks released with low shark length to trailing branchline ratios. While these findings suggest that retention bans offer sharks an increased chance of survival, continued efforts should be made to improve handling and release practices, reduce trailing gear and minimize pelagic shark bycatch. PY 2023 PD APR SO Aquatic Conservation-marine And Freshwater Ecosystems SN 1052-7613 PU Wiley VL 33 IS 4 UT 000940297700001 BP 366 EP 378 DI 10.1002/aqc.3920 ID 93486 ER EF