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Traits taxon detailsCaligus elongatus von Nordmann, 1832
 135754 (urn:lsid:marinespecies.org:taxname:135754)
accepted
Species
Caligus guerini Guiart, 1913 · unaccepted > junior subjective synonym
Caligus latifrons Wilson C.B., 1905 · unaccepted (synonym)
Caligus trachypteri Krøyer, 1863 · unaccepted (synonym)
marine,
von Nordmann, A. (1832). Mikrographische Beiträge zur Naturgeschichte der wirbellosen Thiere. [Micrographic contributions to the natural history of invertebrates.]. <em>Zweites Heft. Mit zehn Kupfertafeln, G. Reimer, Berlin.</em> XVIII:1-150, plates I-X., available online at https://archive.org/details/mikrographische00nordgoog [details]
Walter, T.C.; Boxshall, G. (2025). World of Copepods Database. Caligus elongatus von Nordmann, 1832. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=135754 on 2025-09-19
Marine Species Traits editorial board (2025). Marine Species Traits. Caligus elongatus von Nordmann, 1832. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=135754 on 2025-09-19
Date action by
original description
von Nordmann, A. (1832). Mikrographische Beiträge zur Naturgeschichte der wirbellosen Thiere. [Micrographic contributions to the natural history of invertebrates.]. <em>Zweites Heft. Mit zehn Kupfertafeln, G. Reimer, Berlin.</em> XVIII:1-150, plates I-X., available online at https://archive.org/details/mikrographische00nordgoog [details]
original description (of Caligus guerini Guiart, 1913) Guiart, J. (1913). Crustacés commensaux et parasites de la baie de Concarneau. [Commensal and parasitic crustaceans of Concarneau Bay.]. <em>Bulletin de l'Institut Océanographique, Monaco.</em> 264:1-10, figs. 1-2. (5-v-1913). [details] original description (of Caligus latifrons Wilson C.B., 1905) Wilson, C.B. (1905). North American parasitic copepods belonging to the family Caligidae. Part 1.- The Caliginae. Proceedings of the United States National Museum 28(1404):479-672, pls. 5-29. (23-vi-1905). [details] original description (of Caligus trachypteri Krøyer, 1863) Krøyer, H. (1863-1864). Bidrag til Kundskab om Snyltekrebsene. <em>Naturhistorisk Tidsskrift Ser. III.</em> 2(1/2): 75-320, pls. 1-9 [1863]; 2(3): 321-432, pls. 10-18 [1864]. [details] taxonomy source Parker, R.R. (1969). Validity of the binomen Caligus elongatus for a common parasitic copepod formerly misidentified with Caligus rapax. Journal of the Fisheries Research Board of Canada 26(4):1013-1035, figs. 1-22. [details] Available for editors  context source (BeRMS 2020) Bio-environmental research group; Institute of Agricultural and Fisheries research (ILVO), Belgium; (2015): Zooplankton monitoring in the Belgian Part of the North Sea between 2009 and 2010. [details] basis of record Boxshall, G. (2001). Copepoda (excl. Harpacticoida), <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>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,</i> 50: pp. 252-268 (look up in IMIS) [details] additional source Brunel, P., L. Bosse & G. Lamarche. (1998). Catalogue of the marine invertebrates of the estuary and Gulf of St. Lawrence. <em>Canadian Special Publication of Fisheries and Aquatic Sciences, 126.</em> 405 pp. (look up in IMIS) [details] Available for editors additional source Hogans, W.E. (1993). Guide to common external parasites of fishes of the Canadian Atlantic: I. Crustacea: Isopoda, Amphipoda, Brachiura & Copepoda. ARC Species ID Leaflet #93-01-INV. [details] additional source Baevre-Jensen, M. (2001). Population dynamics of the two sea lice species Lepeophtheirus salmonis (Krøyer, 1837) and Caligus elongatus (von Nordmann, 1832) on farmed Atlantic salmon (Salmo salar L.). <em>M.Sc. Thesis, Norges Fiskerihrgskole, University of Tromso, Tromso, Norway.</em> [details] additional source Hogans, W.E. & D.J. Trudeau. (1989). Caligus elongatus (Copepoda: Caligoida) from Atlantic salmon (Salmo salar) cultured in marine waters of the Lower Bay of Fundy. Canadian Journal of Zoology 67(4):1080-1082. (French summary.) [details] Available for editors additional source Hogans, W.E. & D.J. Trudeau. (1989). Preliminary studies on the biology of sea lice, Caligus elongatus, Caligus curtus and Lepeophtheirus salmonis (Copepoda: Caligoida) parasitic on cage-cultured salmonids in the lower Bay of Fundy. Canadian Technical Report of Fisheries and Aquatic Sciences 1715:i-iv, 1-14. [details] Available for editors additional source Bruno, D.W. & J. Stone. (1990). The role of saithe, Pollachius virens L., as a host for the sea lice, Lepeophtheirus salmonis Kroyer and Caligus elongatus Nordmann. Aquaculture 89(3-4):201-207. [details] additional source Bron, J.E. & J.W. Treasurer. (1992). Sea lice (Caligidae) on wrasse (Labridae) from selected British wild and salmon-farm sources. Journal of the Marine Biological Association of the United Kingdom 72(3):645-650, tabs. 1-2. [details] Available for editors additional source Shaw, R. & M. Opitz. (1996). Abundance of the parasitic copepod Caligus elongatus on wild pollock near commercial salmonid net-pens. Journal of Aquatic Animal Health 8(1):75-77. [details] Available for editors additional source Cross, T.F. & S.P. Johnson. (1976). The parasitic copepod, Caligus elongatus Nordmann, 1832, on the bluefish, Pomatomus saltatrix (L. 1758): a first host record. Irish Naturalists' Journal 18(11):337. (vii-1976) [details] additional source Dollfus, R.P. (1971). Variation chez Caligus elongatus Al. von Nordmann 1832. [Variation of Caligus elongatus Al. von Nordmann 1832.]. <em>Journal of Parasitology.</em> 57(4)section2:47. Abstract. [details] Available for editors additional source Ellis, A.E., N. Masson & A.L.S. Munro. (1990). A comparison of proteases extracted from Caligus elongatus (Nordmann, 1832) and Lepeophtheirus salmonis (Kroyer, 1838). <em>Journal of Fish Diseases, Oxford, U.K.</em> 13(2):163-165., available online at https://doi.org/10.1111/j.1365-2761.1990.tb00769.x [details] additional source Gusev, A.V. (1987). Class Crustacea Lamarck, 1801. <em>In: Bauer, O.N. (ed.). Opredelitel' parazitov presnovodnykh ryb SSSR. [Key to the Parasites of Freshwater Fishes of the USSR.] Opredeliteli po Faune SSSR, Zoologicheskii Instituta SSSR. Nauka, Leningrad.</em> 3(149):378-432. [details] Available for editors additional source Hewitt, G.C. (1971). Two species of Caligus (Copepoda, Caligidae) from Australian waters, with a description of some developmental stages. Pacific Science 25(2):145-164, figs. 1-78. (iv-1971) [details] Available for editors additional source Jackson, D. (1998). Caligus elongatus as parasites of farmed salmonids in Ireland. In: Proceedings and Abstracts of the 4th International Crustacean Congress, Amsterdam, 20-24 July 1998 [shelved under 'Proceedings'] :116. [abstract] [details] additional source Jackson, D. & D. Minchin. (1992). Aspects of the reproductive output of two caligid copepod species parasitic on cultivated salmon. <em>Invertebrate Reproduction and Development.</em> 22(1-3):87-90., available online at https://doi.org/10.1080/07924259.1992.9672260 [details] Available for editors additional source Jackson, D., S. Deady, D. Hassett & Y. Leahy. (2000). Caligus elongatus as parasites of farmed salmonids in Ireland. In: Schram, F.R. (ed.), Contributions to Zoology Bijdragen tot de Dierkunde. Proceedings of the third international workshop on sea lice, Amsterdam, July 22-24, 1998. 69(1-2):65-70. [details] Available for editors additional source Johnsen, M. (2001). Population dynamics of the two sea lice species Lepeophtheirus salmonis (Krøyer, 1837) and Caligus elongatus (von Nordmann, 1832) on farmed Atlantic salmon (Salmo salar L.) and wild sea trout (Salmo trutta L.) in northern Norway, and possible ways of salm Candidata Scientiarum Thesis, University of Tromsø, Tromsø, Norway. 53 pp. [details] additional source Jones, J.B. (1988). New Zealand parasitic Copepoda; genus Caligus Müller, 1785 (Siphonostomatoida: Caligidae). <em>New Zealand Journal of Zoology.</em> 15(3):397-413., available online at https://doi.org/10.1080/03014223.1988.10422966 [details] Available for editors additional source Kabata, Z. (1979). Parasitic Copepoda of British Fishes. <em>The Ray Society, London.</em> 152: i-xii, 1-468, figs. 1-203. [details] Available for editors additional source Kunz, H. (1993). Beitrag zur Kenntnis von zwei Psammopsyllus-Arten (Copepoda, Harpacticoida, Cylindropsyllidae). [Contribution to the knowledge of two Psammopsyllus species (Copepoda, Harpacticoida, Cylindropsyllidae).]. <em>Crustaceana (Leiden).</em> 64(2):143-154. [details] Available for editors additional source Laverack, M.S. & M.Q. Hull. (1993). Sensory innervation of the antenna of the pre-adult male Caligus elongatus. <em>In: Boxshall, G.A. & D. Defaye (eds.). Pathogens of Wild and Farmed Fish. Sea Lice. Ellis Horwood, Chichester, United Kingdom, 392 pp.</em> :114-124. [details] Available for editors additional source MacKenzie, K. & J.A. Morrison. (1989). An unusually heavy infestation of herring (Clupea harengus L.) with the parasitic copepod Caligus elongatus Nordmann, 1832. Bulletin of the European Association of Fish Pathologists 9(1):12-13. [details] Available for editors additional source MacKinnon, B.M. (1993). Response of the copepodid larvae of Caligus elongatus to light, and the ultrastructure of the eyes. <em>Canadian Journal of Fisheries and Aquatic Sciences.</em> 50(4):793-799., available online at https://doi.org/10.1139/f93-092 [details] Available for editors additional source MacKinnon, B.M. (1993). Host response of Atlantic salmon (Salmo salar) to infection by sea lice (Caligus elongatus). <em>Canadian Journal of Fisheries and Aquatic Sciences.</em> 50(4):789-792., available online at https://doi.org/10.1139/f93-091 [details] Available for editors additional source MacKinnon, B.M. (1995). The poor potential of cunner, Tautogolabrus adsperus, to act as cleaner fish in removing sea lice (Caligus elongatus) from farmed salmon in eastern Canada. Canadian Journal of Fisheries and Aquatic Sciences 52(Suppl. 1):175-177. [details] Available for editors additional source MacKinnon, B.M. & A. Mustafa. (1992). Caligus elongatus: the importance of host factors in infection intensity. In: Noel, P. (ed.). Proceedings of the First European Crustacean Conference, Paris, August 31-September 5, 1992 (Abstracts) :92. (Abstract) [details] additional source MacKinnon, B.M. & W. Piasecki. (1992). Reproduction in Caligus elongatus: How sea lice become so numerous. Bulletin of the Aquaculture Association of Canada 3:20-21. (Abstract.) [details] Available for editors additional source McCarney, P., L. Copley, S. Kennedy, C. Nulty & D. Jackson. (2002). National survey of sea lice (Lepeophtheirus salmonis Kroyer and Caligus elongatus Nordmann) on fish farms in Ireland - 2001. Fishery Leaflet, Dublin 181:1-28. [details] additional source Ramakrishnan, P. (1980). Revision of the Caligidae (Copepoda) with special reference to the Indian fauna. Ph.D. Thesis, University of Kerala 400pp. + 15 plates. [details] Available for editors additional source Mulyadi. (1999). New records and taxonomic reexamination of the genus Labidocera (Copepoda: Calanoida), with notes on their species groups and distribution in Indonesian waters. Treubia, A Journal on Zoology of the Indo-Australian Archipelago Bogor 31(3):219-263. [details] Available for editors additional source Mustafa, A. (1997). Host factors important in determining infection intensity with the sea louse, Caligus elongatus Nordmann, 1832, in Atlantic salmon, Salmo salar L. and Arctic charr, Salvelinus alpinus (L.). Ph.D. Dissertation, University of New Brunswick, Fredericton, New Brunswick, Canada. 184 pp. [details] additional source Integrated Taxonomic Information System (ITIS). , available online at http://www.itis.gov [details] additional source Agusti-Ridaura, C., L.A. Hamre, P.G. Espedal, O. Oines, T.E. Horsberg & K. Kaur. (2019). First report on sensitivity of Caligus elongatus towards anti-louse chemicals and identification of mitochondrial cytochrome C oxidase I genotypes. <em>Aquaculture.</em> 507:190-195., available online at https://doi.org/10.1016/j.aquaculture.2019.04.022 [details] Available for editors additional source Tadros, S.W.A., A.K. El-Gayar & E.M. Abouelhassan. (2020). Prevalence of ecto- and endoparasites of the Sea bass Dicentrachus Labrax in Port Said Governorate, Egypt. <em>Egyptian Journal of Aquatic Biology & Fisheries.</em> 24(7): 629 – 643. [details] Available for editors additional source Gravil, H.R. (1996). Studies on the biology and ecology of the free swimming larval stages of Lepeophtheirus salmonis (Krøyer, 1838) and Caligus elongatus Nordmann, 1832 (Copepoda: Caligidae). <em>PhD Thesis, School of Natural Sciences, University of Stirling, Stirling, Scotland, UK.</em> 292 pp., available online at http://hdl.handle.net/1893/2380 [details] Available for editors additional source Øvergård, A.C., A. Borchel , C. Eichner, S. Hjertaker, J. Nagata, H.M.D. Midtbø, P.A. Nelson, F. Nilsen & L.A. Hamre. (2025). The generalist Caligus elongatus is better at dampening the Atlantic salmon immune response than the salmonid specialist Lepeophtheirus salmonis. <em>Fish and Shellfish Immunology.</em> 160:1-15., available online at https://doi.org/10.1016/j.fsi.2025.110225 [details] Available for editors additional source Zubchenko, A.V. (1993). Vertikal'nyye zony i formatsii parazitofauny glubokovodnykh ryb pribrezhnykh rayonov Severnoy Atlantiki. [Vertical zones and formations of the parasitic fauna in deepwater fishes from the off-shore areas of the North Atlantiс. ]. <em>In: Vorobjova, N.K., S.S. Drobysheva, A.V. Zubchenko, A.B. Karasev, P.I. Savvatimsky & V.K. Mitenev (Eds.). Parasitological Studies of Fish in the Northern Basin: Selected Papers/PINRO. Murmansk, Russia.</em> :39-60. [In Russian]. [details] Available for editors additional source Muxagata, E.M. & J.A. Williams. (2004). The Mesozooplankton of the Solent-Southampton Water system: a photographic guide. Southampton Oceanography Centre, Southampton, U.K. 103 pp. [details] Available for editors additional source O'Reilly, M.G. (1998). Whale-lice (Amphipoda: Cyamidae) and sea lice (Copepoda: Caligidae) from stranded whales in the Firth of Forth. Glasgow Naturalist 23(3):24-26. [details] Available for editors additional source Piasecki, W. (1993). Life cycle of Caligus elongatus von Nordmann (Copepoda, Siphonostomatoida). In: World Association of Copepodologists: Fifth International Conference on Copepoda. Baltimore, Maryland. :75 (abstract). [details] additional source Piasecki, W. (1996). The developmental stages of Caligus elongatus von Nordmann, 1832 (Copepoda: Caligidae). Canadian Journal of Zoology 74(8): 1459-1478. [details] Available for editors additional source Piasecki, W. & B.M. MacKinnon. (1993). Changes in structure of the frontal filament in sequential developmental stages of Caligus elongatus von Nordmann, 1832 (Crustacea: Copepoda: Siphonostomatoida). Canadian Journal of Zoology 71:889-895. [details] Available for editors additional source Piasecki, W. & B.M. MacKinnon. (1995). Life cycle of a sea louse, Caligus elongatus von Nordmann, 1832 (Copepoda, Siphonostomatoida, Caligidae). Canadian Journal of Zoology 73:74-82. [details] Available for editors additional source Pike, A.W. & K. MacKenzie. (1992). The structure and development of the frontal filaments of Lepeophtheirus salmonis and Caligus elongatus. In: Noel, P. (ed.). Proceedings of the First European Crustacean Conference, Paris, August 31-September 5, 1992 (Abstracts) :116. (Abstract) [details] additional source Pike, A.W., A.J. Mordue & G. Ritchie. (1993). The development of Caligus elongatus Nordmann from hatching to copepodid in relation to temperature. In: Boxshall, G.A. & D. Defaye (eds.). Pathogens of wild and farmed fish: sea lice. Ellis Horwood, New York, London etc. 378pp. :51-60. [details] Available for editors additional source Pike, A.W., K. Mackenzie & A. Rowand. (1993). Ultrastructure of the frontal filament in chalimus larvae of Caligus elongatus and Lepeophtheirus salmonis from Atlantic salmon, Salmo salar. In: Boxshall, G.A. & D. Defaye (eds.). Pathogens of wild and farmed fish: sea lice. Ellis Horwood, New York, London etc. 378pp. :99-113. [details] Available for editors additional source Revie, C.W., G. Gettinby, J.W. Treasurer & G.H. Rae. (2002). The epidemiology of the sea lice, Caligus elongatus Nordmann, in marine aquaculture of Atlantic salmon, Salmo salar L., in Scotland. <em>Journal of Fish Diseases.</em> 25 (7): 391-399., available online at https://doi.org/10.1046/j.1365-2761.2002.00388.x [details] Available for editors additional source Schram, T.A., J.A. Knutsen, P.A. Heuch & T.A. Mo. (1998). Seasonal occurrence of Lepeophtheirus salmonis and Caligus elongatus (Copepoda: Caligidae) on sea trout (Salmo trutta), off southern Norway. ICES (International Council for the Exploration of the Sea) Journal of Marine Science 55(2):163-175. (iv.1998), available online at https://doi.org/10.1006/jmsc.1997.0357 [details] Available for editors additional source Somdal, O. & T.A. Schram. (1992). Ectoparasites on northeast Atlantic mackerel (Scomber scombrus L.) from western and North Sea stocks. Sarsia, Bergen 77(1):19-31, figs. 1-2, tabs. 1-13. [details] Available for editors additional source Stone, J., I.H. Sutherland, C. Sommerville, R.H. Richards & K.L. Varma. (2000). Commercial trials using emamectin benzoate to control, Lepeophtheirus salmonis (Kröyer) and Caligus elongatus (Nordmann), infestations in Atlantic salmon, Salmo salar L. <em>Diseases of Aquatic Organisms.</em> 41(2):141-149. [details] Available for editors additional source Tully, O., P. Daly, S. Lysaght, S. Deady & S.J.A. Varian. (1996). Use of cleaner-wrasse (Centrolabrus exoletus (L.) and Ctenolabrus rupestris (L.) to control infestations of Caligus elongatus Nordmann on farmed Atlantic salmon. Aquaculture 142(1-2):11-24. [details] Available for editors additional source Webber, W.R., G.D. Fenwick, J.M. Bradford-Grieve, S.G. Eagar, J.S. Buckeridge, G.C.B. Poore, E.W. Dawson, L. Watling, J.B. Jones, J.B.J. Wells, N.L. Bruce, S.T. Ahyong, K. Larsen, M.A. Chapman, J. Olesen, J.S. Ho, J.D. Green, R.J. Shiel, C.E.F. Rocha, A. Lörz, G.J. Bird & W.A. Charleston. (2010). Phylum Arthropoda Subphylum Crustacea: shrimps, crabs, lobsters, barnacles, slaters, and kin. <em>in: Gordon, D.P. (Ed.) (2010). New Zealand inventory of biodiversity: 2. Kingdom Animalia: Chaetognatha, Ecdysozoa, Ichnofossils.</em> pp. 98-232 (COPEPODS 21 pp.). [details] Available for editors additional source Reilly, P. & M.F. Mulcahy. (1993). Humoral antibody response in Atlantic salmon (Salmo salar L.) immunised with extracts derived from the ectoparasite caligid copepods, Caligus elongatus (Nordmann, 1832) and Lepeophtheirus salmonis (Kroyer, 1838). <em>Fish and Shellfish Immunology.</em> 3(1):59-70., available online at https://doi.org/10.1006/fsim.1993.1006 [details] redescription Parker, R.R. (1969). Validity of the binomen Caligus elongatus for a common parasitic copepod formerly misidentified with Caligus rapax. Journal of the Fisheries Research Board of Canada 26(4):1013-1035, figs. 1-22. [details] Available for editors  Present Inaccurate Introduced: alien Containing type locality
To Barcode of Life (15 barcodes)
To Biodiversity Heritage Library (2 publications) (from synonym Caligus guerini Guiart, 1913) To Biodiversity Heritage Library (23 publications) To European Nucleotide Archive, ENA (Caligus elongatus) To GenBank (41 nucleotides; 25 proteins) (from synonym Caligus guerini Guiart, 1913) To PESI (from synonym Caligus guerini Guiart, 1913) To PESI To USNM Invertebrate Zoology Arthropoda Collection (1 record) (from synonym Caligus latifrons Wilson C.B., 1905) To USNM Invertebrate Zoology Arthropoda Collection (Holotype USNM 42035) (from synonym Caligus latifrons Wilson C.B., 1905) To ITIS From editor or global species database
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