fish diseases in the European

Transcription

1 Survey & Diagnosis of listed fish diseases in the European Community 2009 Niels Jørgen Olesen, Nicole Nicolajsen 14 th Annual Meeting of the National Reference Laboratories for Fish Diseases Aarhus, Denmark, May 27-28, 2010

2 Survey & Diagnosis of listed fish diseases in the European Community An Annual questionnaire 1. General data 2. Epidemiological data 3. Laboratory data, NRL and regional laboratories 1. NRL and regional laboratories proficiency test, accreditation etc 5. Commercial diagnostic kits and reagents used in the NRL s and regional laboratories in 2009

3 General data, whole country or region 3 1. Number of fish farms within country/region, according to size of production (tonnes fish/year)? 2. According to fish species 3. Categorisation according to Council Directive 2006/88 4. Number of fish farms surveyed for other diseases 5. Do you have active or passive surveillance for these diseases

4 Total production of fish in aquaculture in Europe Inlandswaters and Coastalwaters ( 4 Total production of fish in aquaculture in Europe Inlandswaters and Coastalwaters Tons Year

5 Total production of fish in aquaculture in European Fresh-, marine-, and brackish waters ( 5 Total production of fish in aquaculture in Europe Freshwater, Marine and Brackishwater Tons Year

6 % Distribution of farms according to size 6

7 Number of fish farms within country/region, according to fish species in the Northern European countries Number of fish farms within country/region, according to fish species Rainbow trout Atlantic Other Seabream / Other marine Other Carp Eel Flatfish Salmon salmonids Seabass spp. freshwater spp. Total Denmark Finland 205 (some hatcheries have also some other salmonids included in other salmonids 100 (some hatcheries have also other salmonids) have also 1 3 Ireland Sweden England and Wales Scotland SW - 8 FW - SW SW - 3 SW FW -5 SW -4 SW -3 FW FW FW - 36 FW Northern Ireland Iceland Norway All salmonids are reported as Atlanic salmon Included in other marine spp Included in other marine spp Faroe Islands

8 Number of fish farms within country/region, according to fish 8 species in the Continental European countries 1.2 Number of fish farms within country/region, according to fish species Rainbow trout Atlantic Other Seabream / Other marine Other Carp Eel Flatfish Salmon salmonids Seabass spp. freshwater spp. Total Austria Belgium at least registered 6 91 Czech Republic Estonia France Germany Hungary Latvia (restocking) (restocking) (restocking) (restocking)- there are several species in one farm Lithuania Netherlands Poland Slovakia Switzerland

9 Number of fish farms within country/region, according to fish species in the Mediterranean European countries 9 Rainbow trout Atlantic Salmon 1.2 Number of fish farms within country/region, according to fish species Other salmonids Carp Eel Flatfish Seabream / Other marine Other Seabass spp. freshwater spp. Bulgaria Cyprus Greece Italy Portugal Romania Slovenia * sometimes together with rainbow trout Total Spain Croatia Turkey Albania Bosnia and Herzegovina

10 Distribution in categories according to 10 diseases in Europe VHS Category I Category II Category III Category IV Category V IHN Category I Category II Category III ISA Category I Category II Category III Category IV Category V KHV Category I Category II Category III Category IV Category V All Category I Category II Category III Category IV Category V Total VHS IHN ISA KHV

11 Northern European countries 11

12 Denmark 12 Only Cat I&II II All Category I Category II Category III Category IV Category V Total VHS IHN ISA KHV Total number of farms 387

13 Finland 13 No infected, all cat I and few Cat II All Category I Category II Category III Category Category Total IV V VHS IHN ISA KHV Total number of farms 309

14 14 Norway ISA most Cat.III All Category I Category II Category III Category Category Total IV V VHS IHN ISA KHV Total number of farms 1533

15 Distribution of farms according to categories in Norway VHS IHN Category I Category I Category II Category II Category III Category III Category IV Category IV Category V Category V 15 ISA Category I Category II Category III Category IV Category V

16 Scotland 16 ISA 29/460 Cat. II All Category I Category II Category III Category Category Total IV V VHS IHN ISA KHV Total number of farms 473

17 Continental European countries 17

18 18 Germany: All Category I Category II Category III Category Category Total IV V VHS IHN ISA KHV Total number of farms 13003

19 Distribution in categories according to 19 diseases in Germany VHS Category I IHN Category I Category II Category II Category III Category IV Category V Category III Category IV Category V ISA Category I KHV Category I Category II Category II Category III Category IV Category V Category III Category IV Category V

20 20 France: 9IHNCat V 1 VHS CatV All Category I Category II Category III Category Category Total IV V VHS IHN ISA KHV Total number of farms 1970

21 Mediterranean European countries 21

22 Italy: 22 ISA: 627 in Cat.I No categorisation of VHS and IHN (awaiting) All Category I Category II Category III Category IV Category V Total VHS IHN ISA KHV Total number of farms 627

23 23 Spain: Most farms in Cat.I No infected farms or eradications All Category I Category II Category III Category Category Total IV V VHS IHN ISA KHV Total number of farms 399

24 Summary of categorisation Authorisation in good process 24 Several different views on how categorisation shall be performed. Marine/freshwater question for VHS ISA not all cat I? Many farms in Cat III : many farms to be inspected by active surveillance Almost no VHS and IHN infected farms in Europe?? Many de facto infected in Cat III Risk based surveillance not finally implemented yet, no programmes submitted

25 Countries surveyed for SVC 25 Country Number of fish farms involved Austria 24 (2009) / 62 (2008 & 2009) Bulgaria 103 Cyprus 1 Denmark 6 Finland 1 Germany 426 Greece 8 Hungary 169 Italy 6 farms Latvia 28 Poland 30 Portugal 2 Romania 9 Slovakia 55 Sweden 2 England and Wales 162 Scotland 5 Northern Ireland 2 Croatia 17 Bosnia and Herzegovina

26 Countries surveyed for BKD 26 Number of Country fish farms involved Denmark 49 Finland 80 Germany 167 Greece 73 Slovakia 10 Slovenia 3 Spain 1 Sweden 130 England and Wales 198 Scotland 428 Northern Ireland 10 Croatia 25 Iceland 17 Norway 116 Faroe Islands

27 Countries surveyed for IPN 27 Country Number of fish farms involved Austria 22 (2009) / 78 (2008 & 2009) Bulgaria 36 Czech Republic 93 Denmark 37 Finland 69 Germany 481 Greece 73 Italy 6 f Portugal 28 Romania 21 Slovakia 105 Slovenia 65 Spain 122 Sweden 186 Northern Ireland 10 Croatia 25 Turkey 65 Bosnia and Herzegovina 28 Iceland 15 Norway 130 Faroe Islands

28 Countries surveyed for G.salaris 28 Number of Country fish farms involved 2 Finland hatcheries+ mainly wild samples Spain 1 England and Wales 198 Scotland 66 Northern Ireland 10 Iceland 5 Norway

29 Number of fish farms surveyed for the following diseases 29 SVC BKD IPN Gyrodactylus salaris Other

30 2. Epidemiological data 30 Number of fish farms considered to be infected Number of fish farms with susceptible species that are considered to be free Number of fish farms with susceptible species for which the infection status of the following diseases is unknown:

31 31 2. Epidemiological data Other fish diseases than VHS, IHN, SVC, KHV or ISA? Is there an increase or decrease in the number of fish farms infected with listed diseases compared to previous years? Is there a general increase or decrease in the severity of infections with listed diseases compared to previous years?

32 Number of salmonid farms considered to be infected with VHS in Europe 32 Country Total number of farms Positive Belgium 91 3 Bulgaria Finland Germany Italy Netherlands Poland Slovakia Slovenia Norway 281 1

33 Number of trout farms considered to be infected with IHN in Europe 33 Country Total number of farms Positive Belgium 91 1 Germany Italy Netherlands Poland Slovenia

34 Number of fish farms considered to be infected with KHV in Europe 34 Country Czech Republic Total number of farms Positive Germany Italy Poland Slovenia 218 8

35 Number of fish farms considered to be infected with ISA in Europe 35 Country Total number of farms Positive Scotland Norway Faroe Islands 37 21

36 Distribution of farms with known (blue) and unknown (red) infection status in Europe according to the listed diseases Number of fish farms with susceptible species that are considered d to be free of the following diseases according to national surveillance: VHS IHN KHV ISA 2.3 Number of fish farms with susceptible species for which the infection status of the following diseases is unknown:

37 Other diseases problems in Northern European countries 37 Country Fish species Please describe disease or symptoms Denmark Rainbow trout Suspicion of Red mark syndrome Ireland Atlantic salmon PD Sweden Salmonids Flavobacteriosis England and Clinical BKD outbreak on one fish farm in rainbow trout Wales England Scotland Atlantic salmon IPN, CMS, PD, ERM, moritella viscosa, BKD, vibriosis, furunculosis Norway Atlantic salmon Sea lice, PD, IPN, HSMI, CMS Faroe Islands Cod Aeromonas Salmonicida

38 Other diseases problems in Continental European countries 38 Country Fish species Please describe disease or symptoms Austria Arctic char A. salmonicida Estonia Rainbow trout A. hydrophila Rainbow trout : PKD, ERM, RTFS Germany Rainbow trout and Brook trout Flexibacter sp., Amoebic gill disease, Strawberry disease" (symptomes as observed in 2008; part.: isolation of Flexibacter sp.brook trout: PKD Latvia Cyprinus carpio Bacterial Haemorragic Septicemia (aeromonosis) Netherlands European eel Edwardsiella tarda, EVEX, and EVE: haemorrhages, mortality Slovakia Rainbow trout IPN ( 1 x ) Switzerland Rainbow trout BKD, RTFS, ERM

39 Other diseases problems in Mediterranean European countries 39 Country Bulgaria Cyprus Greece Fish species Rainbow trout SEABASS, SEABREAM. Seabass (Dicentrarchus labrax) Please describe disease or symptoms A. hydrophila; Y.ruckeri; R.salmoninarum; Myxobolus cerebralis Serious losses due to nodavirus occurred in a marine farm affecting seabass and seabream larvae Nodavirus Italy Rainbow trout Gill disease, lactococcosis, IPN, ERM, PKD, Romania Rainbow trout IPN, furunculosis Spain Rainbow trout RTFS, IPN, Lactoccoccosis Croatia Rainbow trout Furunculosis, RTFS Turkey seabass IPN

40 40 Northern European countries Is there an increase or decrease in the number of fish farms infected with listed diseases compared to previous years? Denmark Scotland Norway The number of fish farms infected with VHS is 0!. Increase in number of fish farms infected ed with ISAV - 7 Atlantic salmon sites in the Shetland Isles. ISA: Decrease in number of infected farms, from 17 in 2008 to 10 in VHS: Decrease in number of infected farms, from four in 2008 to one in 2009.

41 41 Continental European countries Is there an increase or decrease in the number of fish farms infected with listed diseases compared to previous years? Increase in number of KHV-infected farms (2007:18 / 2008:4 / 2009:9) increase in number of IHNV-infected farms (2007:3 / Austria 2008:0 / 2009:1) constant number of VHSV-infected farms (2007:3 / 2008:3 / 2009:3) First year without any VHS or IHN outbreak in salmonid fish Belgium farm, just one outbreak of VHS in a put and take pond. First KHV outbreak in "wild" pond carp Decrease: IPN, Yersinia ruckeri, Mycobacterium marinum and Germany Mycobacterium spp.; Increase of KHV in Saxony Netherlands Increase: 3rd outbreak of IHN in The Netherlands. Poland There is increase of KHV and IHN infected farm, Slovakia Increased of fish farms infected with VHS Switzerland Decrease in positive cases compared to the previous year

42 42 Mediterranean European countries Is there an increase or decrease in the number of fish farms infected with listed diseases compared to previous years? No

43 43 Northern European countries Is there a general increase or decrease in the severity of infections with listed diseases compared to previous years? Scotland Increase due to ISA outbreak in 2009.

44 44 Continental European countries Is there a general increase or decrease in the severity of infections with listed diseases compared to previous years? Austria decrease in severity of KHV-infections; most frequently KHV was detected in clinically healthy Common carps and Koi carps Germany Slovakia Decrease: IPN, Yersinia ruckeri, Mycobacterium marine, Mycobacterium spp. Increased of fish farms infected with VHS

45 Mediterranean European countries Is there a general increase or decrease in the severity of infections with listed diseases compared to previous years? 45 Italy During the last VHS outbreaks in some occasions the first stage of the disease characterized by lethargy, pigmentation, exopthalmus is not so evident while nervous signs seem to be prevalent and appear very early

46 No. of samples tested by cell cultivation. Total in Europe = fish samples No of samp ples

47 47 No of samples tested by PCR or other direct methods without cell cultivation. Total in Europe = No of samp ples

48 48 Conclusion Few changes from 2008 to Production very stable (smal increase) Many countries reported on the new diseases in Dir 2006/88, better understanding di of KHV in carp producing countries ISA outbreaks in Scotland VHS control in Norway VHS increase in Slovenia VHS eradication from Denmark Still significant under-reporting. Categorisation of fish farms in good progress The obligation of authorisation of all fish farms in EU including data on their health status might have improved reporting significantly, but there is still a long way to go.

49 49 Raw data are not included in folder this year. If interested all data can be retreived from our web site: In Surveillance and diagnosis