REPORT OF THE WORKING GROUP ON PATHOLOGY AND DISEASES

2,89

MB

(WGPDMO)

104

stron

3711

ID

International Council for the Explorations of the Sea

2006

rok

Contents

Executive summary 1

1 Opening and structure of the meeting . 3

2 Terms of Reference, adoption of the agenda, selection of Rapporteurs 3

2.1 Terms of Reference . 3

2.2 Adoption of the agenda and timetable . 3

2.3 Selection of Rapporteurs 3

3 ICES items of relevance to WGPDMO 4

3.1 ICES Annual Science Conferences 2005 and 2006. 4

3.2 ICES Mariculture Committee (MCC) 4

3.3 ICES Symposia 5

3.4 ICES Advisory Committee on the Marine Environment (ACME) 6

4 Other relevant activities for information. 6

4.1 Conferences/Workshops 6

4.2 Relevant Projects . 7

5 Produce an update on new disease trends in wild and cultured fish, molluscs and crustaceans,

based on national reports . 8

5.1 Wild fish 8

5.1.1 Viruses 8

5.1.2 Bacteria. 8

5.1.3 Parasites 9

5.1.4 Other diseases . 10

5.1.5 Conclusions 11

5.1.6 Recommendations. 11

5.2 Farmed Fish . 11

5.2.1 Viruses 11

5.2.2 Bacteria. 12

5.2.3 Parasites 13

5.2.4 Other diseases . 13

5.2.5 Conclusions 13

5.2.6 Recommendations. 14

5.3 Wild and farmed molluscs and crustaceans. 14

5.3.1 Viruses 14

5.3.2 Bacteria. 14

5.3.3 Fungal infections 14

5.3.4 Parasites 15

5.3.5 Other Diseases 17

5.3.6 Miscellaneous . 18

5.3.7 Conclusions 18

5.3.8 Recommendations. 19

6 Update information on the causes and effects of Heart and Skeletal Muscle Inflammation (HSMI)

affecting farmed salmon in ICES Member Countries . 19

6.1 Pathology and etiology 19

6.2 Conclusions . 20

6.3 Recommendations . 20

6.4 References . 20

7 Produce an update of current information from ICES Member countries on the development of

sea lice vaccines and management measures for sea lice control 21

7.1 Effects of sea lice. 21

7.2 Control measures . 21

7.3 Vaccines 21

7.3.1 Challenges when developing lice vaccines. 21

7.3.2 Working protocol 22

7.3.3 Current status 22

7.3.4 Future work. 22

7.4 Management measures 22

7.5 Conclusions . 22

7.6 Recommendation. 23

7.7 References . 23

8 The effects of climate change on diseases of marine fish and shellfish 23

8.1 Conclusions . 24

8.2 Recommendations . 24

8.3 References . 24

9 Review progress made with regard to international collaborative actions including disease and

pathology aspects 25

9.1 The REGNS Integrated Assessment of the North Sea Ecosystem (REGNS) . 25

9.1.1 Recommendations. 26

9.1.2 References 26

9.2 The Baltic Sea Regional Project (BSRP). 26

9.2.1 Conclusions 27

9.2.2 Recommendations. 27

9.3 BEQUALM . 27

9.3.1 Recommendations. 28

10 Propose a set of diagnostic techniques for the identification and characterisation of microcell

parasites in oysters . 28

10.1 Conclusions . 29

10.2 Recommendations . 29

10.3 References . 29

11 Produce a review on the current status of studies carried out in ICES Member Countries on

infectious diseases in shellfish hatcheries 30

11.1 Conclusions . 30

11.2 Recommendations . 30

12 Conduct a pilot study assessing the feasibility of constructing a ‘disease index’ using disease

data from North Sea dab ( Limanda limanda) 31

12.1 Conclusions . 31

12.2 Recommendations . 31

13 Review available data for each biological effects method to clarify whether data can be

compared across the range of recommended fish species and review selection of species, gender

and size ranges (WKIMON). 32

13.1 Conclusions . 33

14 Produce updated ICES publications on pathology and diseases of marine organisms 33

14.1 Web-based report on diseases and parasites of wild and farmed marine fish and shellfish as

part of the ICES Environmental Status Report 33

14.1.1 Recommendations. 34

14.2 ICES Identification Leaflets for Diseases and Parasites of Fish and Shellfish. 34

14.3 WGPDMO website 34

14.4 Publication in the TIMES series 34

14.5 Other Publications . 34

15 Provide expert knowledge and advice on fish disease and related data to the ICES Data Centre

on a continuous basis. 35

15.1 Type of information submitted using the ICES Environmental Data Reporting Format 3.2. 35

15.2 Example for the submission of fish disease data in the ICES Environmental Data Reporting

Format 3.2 35

15.2.1 General rules. 35

15.2.2 Example: Reporting prevalence information 36

15.3 Data products to be prepared by ICES. 37

15.4 Conclusions . 37

15.5 Recommendations . 37

16 Potential WGPDMO contributions to an ecosystem overview advisory report describing the

quantity and quality of marine habitat and/or the health in the marine ecosystem, and to consider

and report on potential indicators of significant change in these ecosystem attributes. 38

16.1 Recommendations . 38

17 Any other business. 38

17.1 WGPDMO working procedures 38

17.2 Nomination of a new Chair 39

18 Analysis of progress with tasks. 39

19 Future activities of WGPDMO. 40

20 Approval of recommendations . 40

21 Approval of the draft WGPDMO report. 40

22 Closure of the meeting. 40

Annex 1: List of participants . 41

Annex 2: WGPDMO Terms of Reference for 2006 . 43

Annex 3: Working documents distributed prior to the meeting. 46

Annex 4: Agenda. 48

Annex 5: Rapporteurs 49

Annex 6: ICES/BSRP Sea-going Workshop on Fish Disease Monitoring in the Baltic Sea (WKFDM):

Summary . 50

iv | ICES WGPDMO Report 2006

Annex 7: Diagnostic techniques for the identification and characterisation of microcell-type

parasites in oyster species 56

Annex 8: Review on the current status of studies carried out in ICES Member Countries on

infectious diseases in shellfish hatcheries 63

Annex 9: Construction of a Fish Disease Index (FDI) based on data on disease conditions in dab (

Limanda limanda) 68

Annex 10: Update of disease maps on the ICES website. 84

Annex 11: Recommendations 93

Annex 12: Proposed Terms of Reference for the 2007 WGPDMO meeting and related action list.. 96