• Korean Journal of Environmental Biology
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• v.20 no.4
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• pp.300-302
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• 2002

The occurrence and infection level of parasitic Copepod, Clavella adunca on the black rockfish, Sebastes melanops at the Hatfield Marine Science Center Aquarium were studied. C. adunca was usually found on the base of fins, preferably on the pectoral fins. Seven specimens of black rockfish, Sebastes melanops were collected from Oregon Coast Aquarium. Copepods of ten Clavella adunca were present as ectoparasites attached to the fins in the black rockfish. The prevalence and relative density of Clavella adunca were 28.6% and 1.4 respectively. It is considered that the tissue of the fin membrane offers the most favorable conditions toy the attachment of C. adunca.

• Journal of Environmental Health Sciences
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• v.29 no.1
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• pp.16-18
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• 2003

Seven specimens of Sebastes melanops, black rockfish and three of S. maliger, quillback rockfish, were collected from Oregon Coast Aquarium during the period of September 19 to November 5, 2001 and examined for parasites. One monogenean helminth species and parasitic copepod species were recorded from black and quillback rockfishes, respectively. A total of 26 parasites were collected: 16 Microcotyle sebastis from the gill filaments of black and quillback rockfishes and 10 Clavella adunca were found in the fins of black rockfish. The prevalence of Microcotyle sebastis was 40.0%, and intensity of infection was 2.0(1-11). With regard to Clavella adunca, the prevalence and intensity were 20.0% and 1.4(2-8), respectively.