Pseudodactylogyrosis in Anguilla anguilla (Actinopterygii: Anguilliformes: Anguillidae): change of control strategies due to occurrence of anthelmintic resistance

• Autorzy: Buchmann K. , Kania P. W. , Neumann L. , De'Besi G.
• Języki publikacji: EN

Abstrakty

EN

Background. The European eel, Anguilla anguilla (L.), is considered an endangered species and a series of protective measures have been implemented within the European community in order to enhance natural stocks. Restocking natural habitats with larger eels reared from the glass-eel stage in recirculated farming systems may be one solution. Gill diseases caused by monogenean parasites of the genus Pseudodactylogyrus are currently causing morbidity and mortality in these farms and previously applied standard treatments have recently failed. Therefore the applied control methods should be verified and novel solutions proposed. Materials and methods. Eels infected by Pseudodactylogyrus anguillae were obtained from a typical recirculated eel-culture system which had been treated regularly but recently unsuccessfully with benzimidazole anthelmintics. In the laboratory infected eels were subjected to bath treatments with flubendazole (5 or 10 mg · L–1) or praziquantel (5 or 10 mg · L–1) for 24 h at 25ºC and parasite infections were recorded three days post-treatment. Results. Gill monogeneans, Pseudodactylogyrus anguillae, were not controlled by the anthelmintic flubendazole at any of the dosages tested whereas praziquantel showed a significant effect when used as bath (5 and 10 mg · L–1). Conclusion. The failure of flubendazole for control of pseudodactylogyrosis may result from selection of anthelmintic resistant parasite strains due to use of benzimidazoles for decades. Future treatment regimes during acute outbreaks may be based on praziquantel. A risk for future continued selection for anthelmintic resistance exists and supplementary non-chemical methods (mechanical and biological) in rearing of European eel should be emphasized in the future management practice of eel.

Słowa kluczowe

EN

pseudodactylogyrosis; animal infection; Anguilla anguilla; Actinopterygii; Anguilliformes; Anguillidae; control strategy; occurrence; anthelmintic resistance; European eel; Pseudodactylogyrus; flubendazole; endangered species; gill disease; monogenean parasite; parasite; mortality; animal farm; standard treatment; Pseudodactylogyrus anguillae; praziquantel

• Wydawca: -
• Czasopismo: Acta Ichthyologica et Piscatoria
• Rocznik: 2011
• Tom: 41
• Numer: 2
• Opis fizyczny: p.105-108,ref.

Twórcy

autor

Buchmann K.

• Department of Veterinary Disease Biology, Faculty of Life Sciences, University of Copenhagen, Frederiksberg C., Denmark

autor

Kania P. W.

autor

Neumann L.

autor

De'Besi G.

Bibliografia

• Anonymous 2007a. Council Regulation (EC) No 1100/2007 of 18 September 2007 establishing measures for the recovery of the stock of European eel. Official Journal of the European Union. L248/17–L248/23.
• Anonymous 2007b. European eel. Report of the ICES Advisory Committee on Fishery Management. Advisory Committee on the Marine Environment and Advisory Committee on Ecosystems, 2007. ICES Advice 9: 86–92.
• Buchmann K. 1988. Epidemiology of pseudodactylogyrosis in an intensive eel-culture system. Diseases of Aquatic Organisms 5 (2): 81–85.
• Buchmann K., Bjerregaard J. 1990a. Comparative efficacies of commercially available benzimidazoles against Pseudodactylogyrus infestations in eels. Diseases of Aquatic Organisms 9 (2): 117–120.
• Buchmann K., Bjerregaard J. 1990b. Mebendazole treatment of pseudodactylogyrosis in intensive eel-culture system. Aquaculture 86 (2–3): 139–153. DOI: 10.1016/0044-8486(90)90108-Y.
• Buchmann K., Mellergaard S., Køie M. 1987. Pseudodactylogyrus infections in eel: A review. Diseases of Aquatic Organisms 3 (1): 51–57.
• Buchmann K., Székely Cs., Bjerregaard J. 1990. Treatment of Pseudodactylogyrus infestations of Anguilla anguilla II. Trials with bunamidine, praziquantel and levamizole. Bulletin of the European Association of Fish Pathologists 10 (1): 18–20.
• Buchmann K., Roepstorff A., Waller P.J. 1992. Experimental selection of mebendazole-resistant gill monogeneans from the European eel, Anguilla anguilla L. Journal of Fish Diseases 15 (5): 393–400. DOI: 10.1111/j.1365-2761.1992.tb01238.x.
• Bush A.O., Lafferty K.D., Lotz J.M., Shostak A.W. 1997. Parasitology meets ecology on its own terms: Margolis et al. Revisited. Journal of Parasitology 83 (4): 575–583. DOI: 10.2307/3284227.
• Gratzek J.B., Gilbert J.P., Lohr A.L., Shotts E.B.jr., Brown J. 1983. Ultraviolet light control of Ichthyophthirius multifiliis Fouquet in a closed fish culture recirculation system. Journal of Fish Diseases 6 (2): 145–153. DOI: 10.1111/j.1365-2761.1983.tb00062.x.
• Haenen O.L.M., Davidse A. 2001. First isolation and pathogenicity studies with Pseudomonas anguilliseptica from diseased European eel Anguilla anguilla (L.) in the Netherlands. Aquaculture 196 (1–2): 27–36. DOI: 10.1016/S0044-8486(00)00566-4.
• Haenen O.L.M., Dijkstra S.G., van Tulden P.W., Davidse A., van Nieuwstadt A.P., Wagenaar F., Wellenberg G.J. 2002. Herpesvirus anguillae (HVA) isolations from disease outbreaks in cultured European eel, Anguilla anguilla, in the Netherlands since 1996. Bulletin of the European Association of Fish Pathologists 22 (4): 247–257.
• Jakob E.H., Neuhaus H., Steinhagen D., Luckhardt B., Hanel R. 2009. Monitoring of Herpesvirus anguillae (HVA) infections in European eel, Anguilla anguilla (L.), in northern Germany. Journal of Fish Diseases 32 (6): 557–561. DOI: 10.1111/j.1365-2761.2009.01009.x.
• Kagawa H., Tanaka H., Ohta H., Unuma T., Nomura K. 2005. The first success of glass eel production in the world: basic biology on fish reproduction advances newapplied technology in aquaculture. Fish Physiology and Biochemistry 31 (2–3): 193–199. DOI: 10.1007/s10695-006-0024-3.
• Køie M. 1988. Parasites in European eel Anguilla anguilla (L.) from Danish freshwater, brackish and marine localities. Ophelia 29 (2): 93–118.
• Lefebvre F.S., Crivelli A.J. 2004. Anguillicolosis: Dynamics of the infection over two decades. Diseases of Aquatic Organisms 62 (3): 227–232.
• Lorenzen K. 2008. Understanding and managing enhancement fisheries systems. Reviews in Fisheries Science 16 (1–3): 10–23. DOI: 10.1080/10641260701790291.
• Mellergaard S., Dalsgaard I. 1987. Disease problems in Danish eel farms. Aquaculture 67 (1–2): 139–146. DOI: 10.1016/0044-8486(87)90019-6.
• Molnár K., Székely Cs., Perényi M. 1994. Dynamics of Anguillicola crassus (Nematoda: Dracunculoidea) infection in eels of Lake Balaton, Hungary. Folia Parasitologica 41 (3): 193–202.
• Pedersen L.-F., Pedersen P.B., Nielsen J.L., Nielsen P.H. 2009. Peracetic acid degradation and effects on nitrification in recirculating aquaculture systems. Aquaculture 296 (3–4): 246–254. DOI: 10.1016/j.aquaculture.2009.08.021.
• Sures B., Knopf K., Würtz J., Hirt J. 1999. Richness and diversity of parasite communities in European eels Anguilla anguilla of the River Rhine, Germany, with special reference to helminth parasites. Parasitology 111 (3): 323–330. DOI: 10.1017/s0031182099004655.
• Templeton M.R., Andrews R.C., Hoffmann R. 2005. Inactivation of particle-associated viral surrogates by ultraviolet light. Water Research 39 (15): 3487–3500. DOI: 10.1016/j.watres.2005.06.010.
• van Ginneken V., Haenen O., Coldenhoff K., Willemze R., Antonissen E., van Tulden P., Dijkstra S., Wagenaar F., van den Thillart G. 2004. Presence of eel viruses in eel species from various geographic regions. Bulletin of the European Association of Fish Pathologists 24 (?): 268–272.
• Waller P.J., Buchmann K. 2001. Anthelmintic resistance and parasite control in commercial eels farms: Consequences for producers. Veterinary Record 148 (25): 783–784. DOI: 10.1136/vr.148.25.783.