ICES WGPDMO REPORT 2007 ICES MARICULTURE COMMITTEE ICES CM 2007/MCC:04 Ref. ACME and MHC REPORT OF THE WORKING GROUP ON PATHOLOGY AND DISEASES OF MARINE ORGANISMS (WGPDMO) 20–24 MARCH 2007 TENERIFE, SPAIN REVISED NOVEMBER 2007 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. 2007. Report of the Working Group on Pathology and Diseases of Marine Organisms (WGPDMO), 20-24 March 2007, Tenerife, Spain. ICES CM 2007/MCC:04. 86 pp. For permission to reproduce material from this publication, please apply to the General 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. © 2007 International Council for the Exploration of the Sea ICES WGPDMO Report 2007 i | Contents Contents ............................................................................................................................. i 1 Opening of the meeting ........................................................................................... 2 2 Terms of Reference, adoption of the agenda, selection of rapporteurs............... 2 2.1 Terms of reference........................................................................................... 2 2.2 Adoption of the agenda and timetable ............................................................. 2 2.3 Selection of rapporteurs................................................................................... 2 3 ICES items of relevance to WGPDMO.................................................................. 2 3.1 ICES Annual Science Conferences 2006, 2007 and 2008 ............................... 2 3.2 ICES Mariculture Committee (MCC).............................................................. 3 4 Other relevant activities for information............................................................... 3 4.1 Conferences/Workshops (chronological order) ............................................... 3 4.2 Relevant Projects and Activities...................................................................... 4 5 Produce an update on new disease trends in wild and cultured fish, molluscs and crustaceans, based on national reports ........................................... 5 5.1 Common and Scientific Names of Host Fish and Shellfish Species Reported in Section 5 ...................................................................................... 5 5.2 Wild Fish ......................................................................................................... 6 5.2.1 Viruses................................................................................................ 6 5.2.2 Bacteria............................................................................................... 7 5.2.3 Parasites.............................................................................................. 7 5.2.4 Other diseases..................................................................................... 8 5.2.5 Conclusions ........................................................................................ 9 5.2.6 Recommendations............................................................................... 9 5.3 Farmed Fish................................................................................................... 10 5.3.1 Viruses.............................................................................................. 10 5.3.2 Bacteria............................................................................................. 10 5.3.3 Parasites............................................................................................ 11 5.3.4 Other diseases................................................................................... 11 5.3.5 Conclusions ...................................................................................... 11 5.3.6 Recommendations............................................................................. 12 5.4 Wild and Farmed Molluscs and Crustaceans................................................. 12 5.4.1 Viruses.............................................................................................. 12 5.4.2 Bacteria............................................................................................. 12 5.4.3 Fungal Infections .............................................................................. 13 5.4.4 Parasites............................................................................................ 13 5.4.5 Other diseases................................................................................... 15 5.4.6 Conclusions ...................................................................................... 15 5.4.7 Recommendations............................................................................. 15 6 Review the condition of hyperpigmentation in common dab (Limanda limanda) with special reference to histopathological and ultrastructure findings, analysis of prevalence and temporal changes, possible causes and similarities with other species............................................................................... 16 6.1 Conclusions ................................................................................................... 17 6.2 Recommendations ......................................................................................... 17 ii | ICES WGPDMO Report 2007 7 Update information on progress made in the development of salmon louse vaccines and sea lice management strategies in ICES Member Countries....... 17 7.1 Chemical Treatment ...................................................................................... 17 7.2 Progress in Vaccine Development................................................................. 17 7.3 Management Strategies.................................................................................. 18 7.4 Conclusions ................................................................................................... 18 7.5 Recommendations ......................................................................................... 18 8 Review progress made with regard to international collaborative actions including disease and pathology aspects.............................................................. 18 8.1 ICES Regional Ecosystem Study Group of the North Sea (REGNS)............ 18 8.2 ICES/HELCOM Working Group on Integrated Assessment of the Baltic Sea (WGIAB) ................................................................................................ 19 8.3 Baltic Sea Regional Project (BSRP).............................................................. 19 8.4 Biological Effects Quality Assurance in Monitoring Programmes (BEQUALM)................................................................................................. 20 8.5 Conclusions ................................................................................................... 21 8.6 Recommendations ......................................................................................... 21 8.7 Literature cited............................................................................................... 22 9 Review of testing, intercalibration, and validation of current and newly developed molecular techniques for the purpose of pathogen diagnosis in bivalves ................................................................................................................... 22 9.1 Molecular Techniques ................................................................................... 22 9.2 Validation ...................................................................................................... 22 9.3 Conclusions ................................................................................................... 23 9.4 Recommendations ......................................................................................... 23 9.5 References ..................................................................................................... 23 10 Review progress made inter-sessionally by selected members of WGPDMO on the pilot study on constructing a ‘fish disease index’ by using empirical dab (Limanda limanda) disease data ................................................................... 23 10.1 Purpose .......................................................................................................... 23 10.2 Implementation.............................................................................................. 23 10.3 Discussion...................................................................................................... 24 10.4 Conclusions ................................................................................................... 24 10.5 Recommendations ......................................................................................... 24 11 Produce ICES publications on pathology and diseases of marine organisms .. 25 11.1 ICES Identification Leaflets for Diseases and Parasites of Fish and Shellfish......................................................................................................... 25 11.2 Publications in the TIMES Series.................................................................. 25 11.3 Other Publications ........................................................................................