Agreement on the Conservation of Cetaceans of the Black Sea, Mediterranean Sea and contiguous Atlantic area, concluded under the auspices of the Convention on the Conservation of Migratory Species of Wild Animals (CMS) Accord sur la Conservation des Cétacés de la Mer Noire, de la Méditerranée et de la zone Atlantique adjacente, conclu sous l’égide de la Convention sur la Conservation des Espèces Migratrices appartenant à la Faune Sauvage (CMS) Seventh Meeting of the Parties to ACCOBAMS Istanbul, Republic of Turkey, 5 - 8 November 2019 21/10/2019 English Original: English ACCOBAMS-MOP7/2019/Doc 30 MITIGATION MEASURES FOR PROTECTED SPECIES Delegates are kindly invited to bring their own documents to the Meeting. This document will be available only in electronic format during the Meeting. ACCOBAMS-MOP7/2019/Doc30 MITIGATION MEASURES FOR PROTECTED SPECIES (before final editing) Note of the Secretariat: This review is aimed at compiling information on mitigation solutions and technics tested worldwide for the most impacting fisheries (static nets, longlines, trawls and purse seines), for each taxa of vulnerable species impacted by bycatch (or involved in depredation). This report was prepared within the framework of the ACCOBAMS/GFCM Project on mitigating the interactions between endangered marine species and fishing activities supported by the MAVA Foundation. It was reviewed by the ACCOBAMS Support Group on Interactions with fisheries and presented at the Twelfth Meeting of the ACCOBAMS Scientific Committee (Monaco, 5-8 November 2018). Peer-review was also organized by the GFCM Secretariat. This report is currently being edited by GFCM in view of its publication in the GFCM Studies and Reviews series (in English and In French). The version of this report presented at the Seventh Meeting of the Parties to ACCOBAMS is before scientific editing and complete revision (currently ongoing). The final version will be published on the ACCOBAMS and GFCM websites as soon as available. 2 ACCOBAMS-MOP7/2019/Doc30 MITIGATION MEASURES FOR PROTECTED SPECIES Document prepared by Jacques SACCHI VERSION 16/07/2019 (before final editing) 3 ACCOBAMS-MOP7/2019/Doc30 Contents I. INTRODUCTION ....................................................................................................................................................... 6 II. .GILL & TRAMMEL NETS ...................................................................................................................................... 7 2.1. CETACEANS ..................................................................................................................................................... 9 2.1.1. Fishing gear improvements .......................................................................................................... 10 2.1.2. Acoustic mitigations ........................................................................................................................ 10 2.1.3. Chemosensory mitigation ............................................................................................................. 13 2.1.4. Visual mitigation ............................................................................................................................... 13 2.2. BIRDS............................................................................................................................................................... 13 2.2.2. Acoustic mitigation .......................................................................................................................... 13 2.2.3. Visual mitigation ............................................................................................................................... 14 2.3. SHARKS .......................................................................................................................................................... 15 2.3.1. Fishing gear improvements .......................................................................................................... 16 2.2.1. Setting improvements .................................................................................................................... 17 2.3.2. Magnetic mitigation ......................................................................................................................... 17 3.4. SEA TURTLES ............................................................................................................................................... 18 2.4.1. Fish gear improvements ................................................................................................................ 18 2.4.2. Acoustic mitigations ........................................................................................................................ 19 2.4.3. Visual mitigation ............................................................................................................................... 19 III. LONGLINES AND LINES..................................................................................................................................... 22 3.1. CETACEANS .................................................................................................................................................. 22 3.1.1. fishing gear improvement ............................................................................................................. 23 3.1.2. Setting improvement ...................................................................................................................... 24 3.1.3. Visual mitigation ............................................................................................................................... 24 3.1.4. Acoustic mitigations ........................................................................................................................ 26 3.2. BIRDS............................................................................................................................................................... 29 3.2.1. Fishing gear modifications............................................................................................................ 29 3.2.2. Setting improvements .................................................................................................................... 34 3.2.3. Visual mitigations ............................................................................................................................. 36 3.3. SHARKS .......................................................................................................................................................... 39 3.3.1. Fishing gear improvements .......................................................................................................... 39 3.3.2. Setting improvements .................................................................................................................... 43 3.3.3. Acoustic mitigation .......................................................................................................................... 44 3.3.4. Chemosensory mitigation ............................................................................................................. 44 3.3.5. Magnetic or electropositive mitigations ................................................................................. 45 3.4. SEA TURTLES ............................................................................................................................................... 46 4 ACCOBAMS-MOP7/2019/Doc30 3.4.1. Fishing gear improvements .......................................................................................................... 47 3.1.1. Setting improvements .................................................................................................................... 50 1.1.1 Visual mitigations ............................................................................................................................. 51 3.1.2. Acoustic mitigations ........................................................................................................................ 51 IV. TRAWLS .............................................................................................................................................................. 52 4.1. CETACEANS .................................................................................................................................................. 52 4.1.1. Acoustic deterrents .......................................................................................................................... 52 4.1.2. Exclusion “barriers” ......................................................................................................................... 52 4.1.3. Escape devices ................................................................................................................................... 52 1.1.2 Alternative methods ........................................................................................................................ 53 4.2. BIRDS............................................................................................................................................................... 53 4.3. SHARKS .......................................................................................................................................................... 54 1.1.3 Fishing gear improvements .........................................................................................................