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WGFTFB Report 2018 ICES WGFTFB 2018 REPORT ICES ECOSYSTEM OBSERVATION STEERING GROUP ICES CM 2018/EOSG:12 REF ACOM AND SCICOM Report of the ICES-FAO Working Group on Fishing Technology and Fish Behaviour (WGFTFB) 4 ― 8 June 2018 Hirtshals, Denmark International Council for the Exploration of the Sea Conseil International pour l’Exploration de la Mer H.C. Andersens Boulevard 44–46 DK-1553 Copenhagen V Denmark Telephone (+45) 33 38 67 00 Telefax (+45) 33 93 42 15 www.ices.dk [email protected] Recommended format for purposes of citation: ICES. 2018. Report of the ICES-FAO Working Group on Fishing Technology and Fish Behaviour (WGFTFB), 4 ― 8 June 2018, Hirtshals, Denmark. ICES CM 2018/EOSG:12. 234 pp. https://doi.org/10.17895/ices.pub.8162 The material in this report may be reused using the recommended citation. ICES may only grant usage rights of information, data, images, graphs, etc. of which it has owner- ship. For other third-party material cited in this report, you must contact the original copyright holder for permission. For citation of datasets or use of data to be included in other databases, please refer to the latest ICES data policy on the ICES website. All ex- tracts must be acknowledged. For other reproduction requests please contact the Gen- eral Secretary. This document is the product of an Expert Group under the auspices of the International Council for the Exploration of the Sea and does not necessarily represent the view of the Council. © 2018 International Council for the Exploration of the Sea Contents Executive summary ................................................................................................................ 1 1 Administrative details .................................................................................................. 2 2 Introduction .................................................................................................................... 3 3 Terms of Reference ........................................................................................................ 4 4 Participants and Meeting Agenda .............................................................................. 6 5 Explanatory Note on Meeting and Report Structure ............................................... 7 6 Opening of the meeting ................................................................................................ 8 6.1 The opening and background of the meeting .................................................. 8 6.2 FAO Briefing on Relevant Activities ................................................................. 9 6.2.1 Global assessment of discards ................................................................ 9 6.2.2 Regional project on bycatch and discards ........................................... 10 6.2.3 Trawling best practice ............................................................................ 10 6.2.4 Voluntary Guidelines on the Marking of Fishing Gear for combating ALDFG and Ghost Fishing ................................................ 11 6.2.5 Marine mammal bycatch in fisheries ................................................... 12 7 Open Session Presentations ....................................................................................... 14 7.1 Open session: Fishing-gears and impact ........................................................ 14 7.2 Open session: Selectivity in a broad sense ..................................................... 18 7.3 Open session: Mean and methods in survival, biodegradable and design simulations ............................................................................................. 22 7.4 Open session: Species and size selectivity in crustacean fishery ................ 27 7.5 Open session: Gear technology for better selectivity .................................... 30 7.6 Topic session: Artificial lights with fishing gears ......................................... 39 7.7 Poster session ..................................................................................................... 42 8 Topic Group: Evaluating the application of artificial light for bycatch mitigation (Light) ......................................................................................................... 55 8.1 Introduction ........................................................................................................ 55 8.1.1 Background and Objectives .................................................................. 55 8.1.2 Terms of Reference ................................................................................. 55 8.2 2018 Topic Group Meeting Overview ............................................................. 56 8.2.1 2018 Topic Group Participants ............................................................. 56 8.3 2018 Topic Group Accomplishments .............................................................. 60 8.3.1 Presentations and Posters in Plenary ................................................... 61 8.3.2 Keynote Presentations ........................................................................... 62 8.3.3 Workshop Discussions .......................................................................... 68 8.4 Progress toward ToRs and Recommendations .............................................. 78 8.4.1 Literature Library ................................................................................... 78 8.4.2 Examination of Research Using Artificial Light ................................. 78 8.5 Plan for 2019 ....................................................................................................... 78 9 Topic Group: Factsheets on fishing gear selectivity and catch comparison trials (Facts) ................................................................................................................... 79 9.1 Introduction ........................................................................................................ 79 9.2 Justification: ........................................................................................................ 79 9.3 Participants: ........................................................................................................ 79 9.4 Existing factsheets.............................................................................................. 80 9.5 Format and content. .......................................................................................... 80 9.6 Producing factsheets. ........................................................................................ 81 9.7 Dissemination and reach. ................................................................................. 81 9.8 Recommendations ............................................................................................. 82 10 Topic Group: “Contact Probability of Selective Devices” (Contact) .................. 83 10.1 Summary ............................................................................................................. 83 10.2 Terms of reference ............................................................................................. 83 10.3 Narrative ............................................................................................................. 83 10.4 “contact” concept ............................................................................................... 85 10.5 Overview of studies considering contact probability ................................... 86 10.1 Overview of studies considering contact probability – reference list ........ 88 10.1 Future work and recommendations ................................................................ 90 10.2 Annex: Individual Presentations ..................................................................... 90 10.2.1 Individual Presentations 2015 .............................................................. 91 10.2.2 Individual Presentations 2016 ............................................................ 105 11 Topic Group: Evaluation of trawl groundgear for efficiency, bycatch and impact on the seabed (groundgear) ........................................................................ 116 11.1 Introduction ...................................................................................................... 116 11.2 Justification ....................................................................................................... 116 11.3 Revised terms of reference ............................................................................. 116 11.4 Participants ....................................................................................................... 117 11.5 The accomplishment: ...................................................................................... 118 11.6 The work plan .................................................................................................. 119 11.7 Final report ....................................................................................................... 119 12 National Reports ........................................................................................................ 121 12.1 Introduction ...................................................................................................... 121 12.2 Belgium ............................................................................................................. 121 12.3 Canada .............................................................................................................. 122 12.4 Denmark ..........................................................................................................
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