Studies on Some Parasites from Aquarium Rockfishes, Sebastes spp.

  • Chun, Kae-Shik (Department of Environmental Health, Yong-In University)
  • Published : 2003.12.01


The results of study of the parasites of rockfishes, Sebastes spp. collected at Oregon coast aquarium during April 6 to June 30, 2002 are presented. Six species of parasites were recovered from examination of 19 rockfishes with an incidence of infection of 42.1 %. This study investigated parasitic infestation of 7 black rock-fish, Sebastes melanops ; 3 quillback rockfish, S. maliger ; 2 yellowtail rockfish, S. flavidus ; 3 canary rockfish, S. pinniger 2 yelloweye rockfish, S. ruberrimus ; 2 tiger rockfish, S. nigrocinctus. Sebastes spp. from aquarium were found to be infested with parasites: Mycrocotyle sebastis, Megalocotyle trituba, Clavella uncinata, Anisakis simplex larvae, Contracaecum sp. larvae, Pseudoterranova decipiens larvae. Prevalence and mean intensity of rockfishes were infected respectively as follows: 21.1%, 4.0 of M. sebastis, 10.5%, 55.5 of M. trituba, 21.1%, 34.3 of A. simplex larvae, 10.5%, 15.0 of Contracaecum sp. larvae, 10.5%, 8.5 of Pseudoterranova decipiens larvae and 10.5%, 5.0 of Clavella uncinata. This study reveled that gills and gastrointestinal tracts of S. pinniger were heavily infested with M. trituba and A. simplex larvae.




  1. Wobeser, G., raft, L.F., Smith, R.F.J. and Acompanado, G. : Proliferative branchitis due to Tetraonchus rauchi (Trematoda : Monogenea) in captive arctic grayling (Thymallus arcticus). J. Fish. Res. Board Can. 33, 1817-1821, 1976
  2. Kramer, D.E. and O'Connell, V.M.: Guide to Northeast Pacific rockfishes. Alaska Sea Grant. Marine Advisory Bulletin No, 25, 1995
  3. Sutherland, D.R. and Wittrock, D,D. : The effects of Salmincola califomiensis (copepoda : Lemaeopodidae) on the gills of farm-raised rainbow trout, Salmo gairderi, Can. J. Zool., 63, 2893-2901, 1985
  4. Overstreet, R.M. and Howse, H.D. : Some parasites and diseases of estuarine fishes in polluted habitats of Mississippi. Ann. N. T. Acad. Sci. 298, 427-462, 1977
  5. Williams, H.H. : Helminth diseases of fish. Helminthol. Abst. 36, 261-295, 1967
  6. Hoffman, G.L. : Parasites of North American freshwater fishes. University of California press, Bakerley and Los Angeles, 486p, 1967
  7. Kabata, Z. and Cousens, B.: Host-parasite relationships between sockeye salmon, Oncorhynchus nerka, and Salmincola californiensis (copepoda : Lemaeopodidae). J. Fish. Res. Bd Can., 34, 191-202, 1977
  8. Poulin, R., Rau, M.E. and Curtis, M.A. : Infection of brook trout fry, salvelinus fontinalis, by ectoparasitic copepods : the role of host behavior and initial parasite load, Anim. Behav, 41, 467-476, 1991
  9. Kabata, Z.: Parasitic copepoda of British fishes. Ray Society. London, 486p, 1979
  10. Sindermann, C.J.: Pollution-associated diseases and abnormalities of fish and shellfish : A review. Fish. Bull., U. S. 76, 717-749, 1979
  11. Khalil, L.F. : Larval nematodes in the herring (Clupea harengus) from British Coastal Waters and adjacent territories. J. Mar. Biol. Ass. U. K. 49, 641-659, 1969