FN Archimer Export Format PT J TI Technical mitigation measures for sharks and rays in fisheries for tuna and tuna-like species: turning possibility into reality BT AF POISSON, Francois ABASCAL CRESPO, Francisco ELLIS, Jim R. CHAVANCE, Pierre PASCAL, Bach SANTOS, Miguel. N. SERET, Bernard KORTA, Maria COELHO, Rui ARIZ, Javier MURUA, Hilario AS 1:1;2:2,8;3:3;4:4;5:4;6:5;7:6;8:7;9:8;10:2;11:7; FF 1:PDG-RBE-MARBEC-LHM;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:; C1 Ifremer, UMR Marbec, Inst Francais Rech Exploitat Mer, CS 30171,Ave Jean Monnet, F-34203 Montpellier, France. Inst Espnaol Oceanog, POB 1373, Santa Cruz De Tenerife 38180, Spain. CEFAS, Lowestoft Lab, Pakefield Rd, Lowestoft NR33 OHT, Suffolk, England. IRD, UMR Marbec, CS 30171,Ave Jean Monnet, F-34203 Sete, France. ICCAT Secretariat, Calle Corazon Maria 8,6 Pl, Madrid 28002, Spain. IRD, Museum Natl Hist Nat, Dept Systemat Evolut, CP 51 55,Rue Buffon, F-75231 Paris 05, France. AZTI, Portualde Z-G, Pasaia 20110, Gipuzkoa, Spain. IPMA, Ave 5 Outubro S-N, P-8700305 Olhao, Portugal. C2 IFREMER, FRANCE IEO, SPAIN CEFAS, UK IRD, FRANCE ICCAT, SPAIN MNHN, FRANCE AZTI, SPAIN IPMA, PORTUGAL SI SETE SE PDG-RBE-MARBEC-LHM UM MARBEC IN WOS Ifremer jusqu'en 2018 copubli-france copubli-p187 copubli-europe IF 0.448 TC 21 UR https://archimer.ifremer.fr/doc/00364/47474/47493.pdf https://archimer.ifremer.fr/doc/00364/47474/69387.pdf LA English DT Article DE ;Mitigation;elasmobranch;bycatch;pelagic;mortality;tuna regional fishery management organizations AB Tuna fisheries have been identified as one of the major threats to populations of other marine vertebrates, including sea turtles, sharks, seabirds and marine mammals. The development of technical mitigation measures (MM) in fisheries is part of the code of conduct for responsible fisheries. An in-depth analysis of the available literature regarding bycatch mitigation in tuna fisheries with special reference to elasmobranchs was undertaken. Studies highlighting promising MMs were reviewed for four tuna fisheries (longline, purse seine, driftnets and gillnet, and rod and line – including recreational fisheries). The advantages and disadvantages of different MMs are discussed and assessed based on current scientific knowledge. Current management measures for sharks and rays in tuna Regional Fishery Management Organizations (t-RFMOs) are presented. A review of relevant studies examining at-vessel and postrelease mortality of elasmobranch bycatch is provided. This review aims to help fisheries managers identify pragmatic solutions to reduce mortality on pelagic elasmobranchs (and other higher vertebrates) whilst minimizing impacts on catches of target tuna species. Recent research efforts have identified several effective MMs that, if endorsed by t-RFMOs, could reduce elasmobranchs mortality rate in international tropical purse seine tuna fisheries. In the case of longline fisheries, the number of operational effective MMs is very limited. Fisheries deploying driftnets in pelagic ecosystems are suspected to have a high elasmobranchs bycatch and their discard survival is uncertain, but no effective MMs have been field validated for these fisheries. The precautionary bans of such gear by the EU and by some t-RFMOs seem therefore appropriate. Recreational tuna fisheries should be accompanied by science-based support to reduce potential negative impacts on shark populations. Priorities for research and management are identified and discussed. PY 2016 PD OCT SO Aquatic Living Resources SN 0990-7440 PU Edp Sciences S A VL 29 IS 4 UT 000391962700002 DI 10.1051/alr/2016030 ID 47474 ER EF