DAO 98:133-141 (2012)  -  DOI: https://doi.org/10.3354/dao02437

Myxobolus groenlandicus n. sp. (Myxozoa) distorting skeletal structures and musculature of Greenland halibut Reinhardtius hippoglossoides (Teleostei: Pleuronectidae)

Kurt Buchmann*, Alf Skovgaard, Per W. Kania

Department of Veterinary Disease Biology, Faculty of Life Sciences, University of Copenhagen, Denmark

ABSTRACT: A specimen of Greenland halibut Reinhardtius hippoglossoides (Walbaum, 1792) caught on the west coast of Greenland (Qasigiannguit) was found to possess serious pathological changes in the body musculature. A series of cartilaginous cylindrical structures organized symmetrically at the position of the proximal pterygiophores had changed the musculature and produced irreversible distortions (cavities and holes) in the fillet of the processed fish, leaving it with no value for the industry. Histopathological investigation showed that these structures consisted of hypertrophic cartilage containing numerous myxospore-producing plasmodia. Morphometric and molecular analyses of the parasites showed that both spore morphology and rDNA sequences complied with characteristics of the genus Myxobolus, but no full affiliation with a known species could be found. The parasite is a previously undescribed species, and the name Myxobolus groenlandicus n. sp. is assigned to this new myxobolid.


KEY WORDS: Greenland halibut · Greenland · Myxobolus · Myxozoa · Pathogenicity · Muscle · Fillet


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Cite this article as: Buchmann K, Skovgaard A, Kania PW (2012) Myxobolus groenlandicus n. sp. (Myxozoa) distorting skeletal structures and musculature of Greenland halibut Reinhardtius hippoglossoides (Teleostei: Pleuronectidae). Dis Aquat Org 98:133-141. https://doi.org/10.3354/dao02437

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