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Diseases and parasites of lumpsucker (Cyclopterus lumpus)

Karlsbakk E., Alarcon M., Hansen H. & Nylund A. (2014). Sykdom og parasitter i vill og oppdrettet rognkjeks. Fisken og Havet, Særnr. 1, 37-39.

Lumpsucker is farmed in Norway for use as cleaner fish in salmonid aquaculture. The present account provides a brief overview of the disease agents and parasites known from this fish. Viral infections have not been detected in this species so far, but some of the 12 bacteria known to infect lumpsucker cause disease, notably Vibrio anguillarum, atypical Aeromonas salmonicida and Pasteurella sp. At least 59 species of parasites are known from lumpsucker, mostly from wild fish. The microsporidian Nucleospora cyclopteri appears to be common along the Norwegian coast, usually associated with greatly enlarged kidneys. This parasite may cause disease problems in lumpsucker farming. Kudoa sp. infections occur in the musculature of lumpsucker in Norway. This myxosporean is not known to cause mortality, but may become a problem in a use of lumpsucker fillets for human consumption by causing ‘soft-flesh’.


This paper is in Norwegian. It is only the summary which is in English.

NVI authors

Hansen Haakon