ICES WGITMO REPORT 2013 ICES ADVISORY COMMITTEE ICES CM 2013/ACOM:30 Report of the ICES Working Group on Introduc- tion and Transfers of Marine Organisms (WGITMO) 20 - 22 March 2013 Montreal, Canada 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. 2013. Report of the ICES Working Group on Introduction and Transfers of Ma- rine Organisms (WGITMO), 20 - 22 March 2013, Montreal, Canada. ICES CM 2013/ACOM:30. 149 pp. For permission to reproduce material from this publication, please apply to the Gen- eral Secretary. The document is a report of an Expert Group under the auspices of the International Council for the Exploration of the Sea and does not necessarily represent the views of the Council. © 2013 International Council for the Exploration of the Sea ICES WGITMO REPORT 2013 i Contents Executive summary ................................................................................................................ 1 1 Opening of the meeting ................................................................................................ 2 2 Adoption of the agenda ................................................................................................ 2 3 WGITMO Terms of Reference .................................................................................... 2 4 Progress in relation to Terms of Reference ............................................................... 4 4.1 Term of Reference a) ............................................................................................. 4 4.1.1 Belgium ..................................................................................................... 4 4.1.2 Canada ....................................................................................................... 5 4.1.3 Croatia ....................................................................................................... 5 4.1.4 Denmark .................................................................................................... 5 4.1.5 Estonia ....................................................................................................... 5 4.1.6 Finland ....................................................................................................... 5 4.1.7 France ........................................................................................................ 6 4.1.8 Germany .................................................................................................... 6 4.1.9 Greece ........................................................................................................ 6 4.1.10 Italy ............................................................................................................ 6 4.1.11 Lithuania ................................................................................................... 6 4.1.12 Norway ...................................................................................................... 7 4.1.13 Poland (by correspondence) ................................................................... 7 4.1.14 Portugal ..................................................................................................... 7 4.1.15 Spain .......................................................................................................... 7 4.1.16 Sweden ...................................................................................................... 7 4.1.17 United Kingdom ...................................................................................... 7 4.1.18 United States ............................................................................................. 8 4.2 Term of Reference b) ............................................................................................ 8 4.3 Term of Reference c) ........................................................................................... 16 4.4 Term of Reference d) .......................................................................................... 18 4.5 Term of Reference e) ........................................................................................... 21 4.6 Term of Reference f) ........................................................................................... 25 4.7 Term of Reference g) ........................................................................................... 26 4.8 Term of Reference h) .......................................................................................... 27 4.9 Term of Reference i) ............................................................................................ 31 4.10 Other discussion items and any other business ............................................. 33 4.10.1 Forecasting the ecological impacts of aquatic invasions: A major challenge for risk assessment (by Anthony Ricciardi, Redpath Museum & McGill School of Environment, McGill University, Canada). .............................................................................. 33 4.10.2 Molecular identification of UK populations of Didemnum vexillum (by Lyndsay Brown). .............................................................. 33 ii ICES WGITMO REPORT 2013 4.10.3 Possible MSC certification of a NIS in Spain and its repercussions (by Gemma Quilez-Badia). .......................................... 34 4.10.4 Potential cooperation with ICES Study Group on Integrated Morphological and Molecular Taxonomy (SGIMT) ................................................................................................... 34 4.10.5 Election of chair for 2014-2016.............................................................. 34 5 Closing of the meeting ................................................................................................ 34 Annex 1. List of participants .......................................................................................... 35 Annex 2. Meeting agenda ............................................................................................... 37 Annex 3. National reports .............................................................................................. 41 3.1 Belgium .......................................................................................................................... 41 3.2 Canada ............................................................................................................................ 43 3.3 Croatia ........................................................................................................................... 59 3.4 Denmark ........................................................................................................................ 60 3.5 Estonia ............................................................................................................................ 65 3.6 Finland ............................................................................................................................ 72 3.7 France ............................................................................................................................. 77 3.8 Germany ......................................................................................................................... 86 3.9 Greece ............................................................................................................................. 89 3.10 Italy ............................................................................................................................... 94 3.11 Lithuania...................................................................................................................... 94 3.12 Norway ....................................................................................................................... 107 3.13 Poland ........................................................................................................................ 109 3.14 Portugal ..................................................................................................................... 111 3.15 Spain ........................................................................................................................... 116 3.16 Sweden ....................................................................................................................... 121 3.17 United Kingdom ..................................................................................................... 124 3.18 United States ........................................................................................................... 132 Annex 4. List of new species and range expansions of alien species as reported in National Reports ........................................................................ 139 Annex 5 Proposed Terms of Reference for 2014 .................................................. 146 ICES WGITMO REPORT 2013 1 Executive summary The 2013 meeting of the ICES Working Group on Introductions and Transfers of Ma- rine Organisms (WGITMO) was held in Montreal, Canada during 20-22. March with Cynthia McKenzie as host and Henn Ojaveer as chair. The meeting was attended by 21 participants from 16 countries. The physical participants were from Belgium, Can- ada, Estonia, Finland, France, Germany, Lithuania, the Netherlands, Norway, Spain, Sweden, United Kingdom and