Higher Classification: > Kingdom Animalia > Subkingdom Eumetazoa > Phylum Arthropoda > Subphylum Crustacea > Superclass Multicrustacea > Class Copepoda > Infraclass Neocopepoda > Superorder Podoplea > Order Cyclopoida > Suborder Ergasilida > Family Ergasilidae > Genus Neoergasilus

Neoergasilus japonicus (Harada, 1930)

Rank: Species
Taxon Status: accepted

Relationships towards this taxon

Genus group names

*Neoergasilus*	Yin, 1956	accepted genus name

Species group names

*Ergasilus japonicus*	Harada, 1930	synonym

Literature

basis of record	Boxshall, G. (2001). Copepoda (excl. Harpacticoida), in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 252-268
additional source	Mugridge, R.E.R., H.G. Stallybrass & A. Hollman. (1982). Neoergasilus japonicus (Crustacea: Ergasilidae). A parasitic copepod new to Britain. Journal of Zoology, London 197(4):551-557. (1-viii-1982).
additional source	Truong, T.N. (2011). Catfish (Ictalurus punctatus), Blue Catfish (Ictalurus furcatus), and C×B Hybrid Catfish (Female Ictalurus punctatus × Male Ictalurus furcatus) in Earthen Pond Aquaculture. M.Sc. Thesis, Auburn University, Auburn, Alabama, USA. 171 pp.
additional source	Urawa, S., K. Muroga & S. Kasahara. (1991). Growth and fecundity of the parasitic copepod Neoergasilus japonicus (Ergasilidae). In: Uye, S.I., S. Nishida & J.S. Ho (eds.). Proceedings of the Fourth International Conference on Copepoda. Bulletin of Plankton Society of Japan, Special Volume: special vol.:619-625.
additional source	Marshall, C.C., P.L. Hudson, J.R. Jackson & L.G. Rudstam. (2019). First record of the non-indigenous parasitic copepod Neoergasilus japonicus (Harada, 1930) in the Lake Ontario Watershed: Oneida Lake, New York. Journal of Great Lakes Research. 45(6):1348-1353.
additional source	Baud, A., C. Cuoc, J. Grey, R. Chappaz & V. Alekseev. (2004). Seasonal variability in the gut ultrastructure of the parasitic copepod Neoergasilus japonicus (Copepoda, Poecilostomatoida). Canadian Journal of Zoology 82(10):1655-1666.
additional source	Kuang, P.R. & J.H. Qian. (1991). Parasitic Crustacea of Freshwater Fishes. Economic Fauna of China. Editorial Committee of Fauna Sinica, Academia Sinica, Science Press, Beijing 203pp. (In Chinese.)
additional source	Hanek, J. (1968). The finding of Neoergasilus japonicus (Harada, 1930) (Copepoda: Ergasilidae) in Europe. Folia Parasitologica 15(3):277-278.
additional source	Alfonso, G. & G. Belmonte. (2010). Neoergasilus japonicus (Harada, 1930): a new non-indigenous species for the Italian Fauna. Italian Journal of Zoology 77(2):172-178.
additional source	Marshall, C.C. (2024). Overlooked and understudied: A survey of the small and hidden freshwater invertebrate taxa (Phylum Rotifera and Subphylum Crustacea). M.Sc. Thesis, Cornell University, Ithaca, New York, USA. 82 pp.
additional source	Urawa, S., K. Muroga & S. Kasahara. (1980). Studies on Neoergasilus japonicus (Copepoda: Ergasilidae), a parasite of freshwater fishes - II. Development in copepodid stage. Journal of the Faculty of Applied Biological Science, Hiroshima University. 19(1):21-38.
additional source	Gusev, A.V. (1987). Class Crustacea Lamarck, 1801. In: Bauer, O.N. (ed.). Key to the Parasites of Freshwater Fishes of the USSR. Opredeliteli po Faune SSSR, Zoologicheskii Instituta SSSR. Nauka, Leningrad 3(149):378-432.
additional source	Katahira, H., O. Ikeda & T. Yodo. (2023). An Outbreak of Neoergasilus japonicus (Copepoda: Ergasilidae) on the Japanese Rice Fish Oryzias latipes Reared in an Outdoor Tank. Fish Pathology. 58(4):171-174. Dec 2023.
additional source	Kim, I.H. (2014). Arthropoda, Maxillopoda, Copepoda, Cyclopoida : Fish-Parasitic Cyclopoid Copepods. Invertebrate Fauna of Korea, National Institute of Biological Resources, Ministry of Environment(Korea). 21(37):226 pp.
additional source	Ondracková, M., M.Y. Tkachenko, L. Vetesník, J. Hronek & M. Janác. (2024). Distribution and host range of a highly invasive parasitic copepod. Hydrobiologia. 851(14):1-20. Jun 2024.
additional source	Urawa, S., K. Muroga & S. Kasahara. (1980). Naupliar development of Neoergasilus japonicus (Copepoda: Ergasilidae). Bulletin of the Japanese Society of Scientific Fisheries (= Nippon Suisan Gakkaishi) 46(8):941-947. (viii-1980)

Genbank

Citation

Walter, T.C.; Boxshall, G. (2025). World of Copepods Database. Neoergasilus japonicus (Harada, 1930). Via: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvantidis, C.; Appeltans, W. (2011) European Register of Marine Species, Accessed through PESI at http://www.eu-nomen.eu/portal/taxon.php?GUID=urn:lsid:marinespecies.org:taxname:128829

Dr. Geoffrey Boxshall. Neoergasilus japonicus (Harada, 1930). Accessed through: Fauna Europaea at https://portal.cybertaxonomy.org/fauna-europaea/cdm_dataportal/taxon/21df230e-3441-4174-8f72-e12abd0a390c