Experimental selection of mebendazole-resistant gill monogeneans from the European eel, Anguilla anguilla L.

doi:10.1111/j.1365-2761.1992.tb01238.x

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Wiley InterScience

Journal of Fish Diseases

Volume 15 Issue 5, Pages 393 - 408

Published Online: 7 Apr 2006

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Experimental selection of mebendazole-resistant gill monogeneans from the European eel, Anguilla anguilla L.

K. BUCHMANN ¹ A. ROEPSTORFF ¹ P. J. WALLER ²

¹ Department of Fish Diseases, Royal Veterinary and Agricultural University, Frederiksberg C, Denmark ² Division of Animal Health, CSJRO, Sydney. Australia

Correspondence: Dr K. Buehmann, Department of Fish Diseases, Royal Veterinary and Agricultural University, 13 Blilowsvcj, DK-1870 Frederiksberg C, Denmark.

ABSTRACT

AbstractBath treatments with mebendazolc (MBZ) are commonly used for control of pseudodactylogyrosis in intensive eel eulture systems in Europe. To assess the potential for selection of drug-resistant gill parasites in these systems, the authors have conducted a number of sub-therapeutic treatments of an anthelmintic naive population of Pseudodactylogyrus bini (Kikuchi, 1929) Gussev, 1965, and P. anguillae (Yin et Sproson, 1948) Gussev, 1965, with different eoncentrations of MBZ. Parasite populations subtherapeutically treated seven times during a 7-month period with 0.05 and 0.005 mg MBZI⁻¹ developed a high and low relative resistance to MBZ, respectively. It was shown that low temperatures decreased the effect of MBZ. In addition, the benzimidazoles albendazole and triclabendazole produced a comparatively lower parasiticidal effect, and it is suggested that treatments at low temperatures or with low effect bcnzimidazoles will increase the risk of selection of drug-resistant gill parasites in eel farms.

DIGITAL OBJECT IDENTIFIER (DOI)

10.1111/j.1365-2761.1992.tb01238.x About DOI