WoRMS taxon details
Caligus clemensi Parker & Margolis, 1964
349592 (urn:lsid:marinespecies.org:taxname:349592)
accepted
Species
marine, brackish, fresh, terrestrial
Parker, R.R. & L. Margolis. (1964). A new species of parasitic copepod, Caligus clemensi sp. nov. (Caligoida, Caligidae) from pelagic fishes in the coastal waters of British Columbia. Journal of the Fisheries Research Board of Canada 21(5):873-889, figs. 1-12., available online at https://doi.org/10.1139/f64-085 [details] Available for editors 
[request]
[request]
Walter, T.C.; Boxshall, G. (2026). World of Copepods Database. Caligus clemensi Parker & Margolis, 1964. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=349592 on 2026-03-11
Date
action
by
The webpage text is licensed under a Creative Commons
Attribution 4.0 License
Nomenclature
original description
Parker, R.R. & L. Margolis. (1964). A new species of parasitic copepod, Caligus clemensi sp. nov. (Caligoida, Caligidae) from pelagic fishes in the coastal waters of British Columbia. Journal of the Fisheries Research Board of Canada 21(5):873-889, figs. 1-12., available online at https://doi.org/10.1139/f64-085 [details] Available for editors [request]
[request]Other
additional source
Saksida, S., J. Constantine, G.A. Karreman & A. Donald. (2007). Evaluation of sea lice abundance levels on farmed Atlantic salmon (Salmo salar L.) located in the Broughton Archipelago of British Columbia from 2003 to 2005. <em>Aquaculture Research.</em> 38(3):219-231., available online at https://doi.org/10.1111/j.1365-2109.2007.01651.x [details]
additional source Beamish, R., J. Wade, W. Pennell, E. Gordon, S. Jones, C. Neville, K. Lange & R. Sweeting. (2009). A large, natural infection of sea lice on juvenile Pacific salmon in the Gulf Islands area of British Columbia, Canada. Aquaculture 297(1-4):31-37., available online at https://doi.org/10.1016/j.aquaculture.2009.09.001 [details]
additional source Patanasatienkul, T., J. Sanchez, E.E. Rees, D. Pfeiffer & C.W. Revie (2015). Space-time cluster analysis of sea lice infestation (Caligus clemensi and Lepeophtheirus salmonis) on wild juvenile Pacific salmon in the Broughton Archipelago of Canada. <i>Preventive Veterinary Medicine</i>. 120(2):219-231., available online at https://doi.org/10.1016/j.prevetmed.2015.03.006 [details]
additional source Byrne, A.A., C.M. Pearce, S.F. Cross, S.R.M. Jones, S.M.C. Robinson, M.J. Hutchinson, M.R. Miller, C.A. Haddad & D.L. Johnson. (2018). Planktonic and parasitic stages of sea lice (Lepeophtheirus salmonis and Caligus clemensi) at a commercial Atlantic salmon (Salmo salar) farm in British Columbia, Canada. <em>Aquaculture.</em> 486:130-138., available online at https://doi.org/10.1016/j.aquaculture.2017.12.009 [details] Available for editors [request]
additional source Godwin, S.C., M. Krkosek, J.D. Reynolds, L.A. Rogers & L.M. Dill. (2018). Heavy sea louse infection is associated with decreased stomach fullness in wild juvenile sockeye salmon. Canadian Journal Of Fisheries And Aquatic Sciences, 75(10):1587-1595., available online at https://doi.org/10.1139/cjfas-2017-0267 [details] Available for editors [request]
additional source Hemmingsen, W., K. MacKenzie, K. Sagerup, M. Remen, K. Bloch-Hansen & A.K.D. Imsland. (2020). Caligus elongatus and other sea lice of the genus Caligus as parasites of farmed salmonids: A review. <em>Aquaculture.</em> 522:1-12. 735160 MAY 2020., available online at https://doi.org/10.1016/j.aquaculture.2020.735160 [details] Available for editors [request]
additional source Yahaya, Z.S., M.N.S. Azizah, L. Alkazmi, R. Ravi & O.B. Awosolu. (2022). First Molecular Identification of Caligus clemensi on Cultured Crimson Snapper Lutjanus rythropterus on Jerejak Island, Penang, Peninsular Malaysia. <em>Pathogens.</em> 11:1-11., available online at https://doi.org/10.3390/pathogens11020188 [details] Available for editors [request]
additional source Chang, T.Y., B.P.V. Hunt, J. Hirai & C.A. Suttle. (2023). Divergent RNA viruses infecting sea lice, major ectoparasites of fish. <em>Plos Pathogens.</em> 19(6):1-25. e1011386. Jun 2023., available online at https://doi.org/10.1093/iob/obad019 [details] Available for editors [request]
additional source Páez, D.J., J.L. Gregg, A.H. Mackenzie, S.A. Hall & P.K. Hershberger. (2023). Characteristics of a sea louse (Caligus clemensi) epizootic in wild Pacific herring (Clupea pallasii). <em>Canadian Journal Of Fisheries And Aquatic Sciences.</em> 80(11):1-10., available online at https://doi.org/10.1139/cjfas-2023-0070 [details] Available for editors [request]
additional source Hamada, A.H., M.M. Attia, M.S. Marzouk, R.M.S. Korany, M.Y. Elgendy & M. Abdelsalam. (2024). Co-infection with Caligus clemensi and Vibrio Parahaemolyticus in Egyptian Farmed Mullets: Diagnosis, Histopathology, and Therapeutic Management. <em>Egyptian Journal of Veterinary Science.</em> 56(2):353-368., available online at https://doi.org/10.21608/EJVS.2024.272080.1871 [details] Available for editors [request]
additional source Abdelsalam, M., M.M. Attia, M.S. Marzouk, R.M.S. Korany, M.Y. Elgendy, A.W. Soliman, A. Prince & A.H. Hamada. (2024). Investigating dynamics, etiology, pathology, and therapeutic interventions of Caligus clemensi and Vibrio alginolyticus co-infection in farmed marine fish. <em>Scientific Reports.</em> 14(1): 1-18. Sep 2024., available online at https://doi.org/10.1038/s41598-024-70528-x [details] Available for editors [request]
additional source Abdelsalam, M., A.W. Soliman, A.H. Hamada, A, Fadel, R.M.S. Korany & M.M. Attia. (2025). Seasonal dynamics of Caligus clemensi Infestation in European Seabass and flathead grey mullet Integrating morphological, molecular, immunological, and environmental perspectives. <em>Microbial Pathogenesis.</em> 199: 107187. Feb 2025., available online at https://doi.org/10.1016/j.micpath.2024.107187 [details]
additional source Abdelkalek, N., R.A. EL Maged, H. Ali & N. Satour. (2021). Identification of Caligus parasites infesting Morone labrax and its impact on fish health status and pathological alteration. <em>Mansoura Veterinary Medical Journal.</em> 22(1):7-12., available online at https://doi.org/10.35943/mvmj.2021.56334.1023 [details] Available for editors [request]
additional source Attia, M.M., M. Abdelsalam, H.I. Mohamed, A. Shadidizaji, A.W. Soliman & M. Warda. (2025). Punica granatum extract demonstrates antiparasitic effects against Caligus clemensi through in silico and in vitro studies. <em>Scientific Reports.</em> 15(1):1-18. Oct 2025., available online at https://doi.org/10.1038/s41598-025-19529-y [details] Available for editors [request]
additional source Jones, S.R.M., C.W. Revie & L. Stewardson. (2025). Trends in sea lice infestations on chum and pink salmon in the Broughton Archipelago remain unchanged despite removal of finfish aquaculture. <em>Diseases Of Aquatic Organisms.</em> 163:107-112. Aug 2025., available online at https://doi.org/10.3354/dao03866 [details] Available for editors [request]
additional source Revie, C.W., T. Patanasatienkul, G. McEwan & L. Stewardson. 2025. Sea lice infestation dataset for wild and farmed salmon populations on the Pacific coast of Canada (2001–2023). <em>Scientific Data.</em> 12:1-11., available online at https://doi.org/10.1038/s41597-025-05653-x [details] Available for editors [request]
additional source Butterworth, K.G., J.D. Ronquillo & R.S. McKinley. (2005). Simplified illustrated sea lice identification guide for Lepeophtheirus salmonis and Caligus clemensi in British Columbia, Canada. Aquaculture Association of Canada Special Publication 9: 101-103. [details] Available for editors [request]
additional source Galbraith, M.D. (2005). Identification of larval stages of Caligus clemensi and Lepeophtheirus salmonis from the Broughton Archipelago. Canadian Technical Report of Fisheries and Aquatic Sciences 548: 1-21. [details] Available for editors [request]
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 [request]
additional source Jones, S.R.M., G. Prosperi-Porta, E. Kim, P. Callow & N.B. Hargreaves. (2006). The occurrence of Lepeophtheirus salmonis and Caligus clemensi (Copepoda: Caligidae) on three-spine stickleback Gasterosteus aculeatus in coastal British Columbia. Journal of Parasitology 92(3):473-440., available online at https://doi.org/10.1645/ge-685r1.1 [details] Available for editors [request]
additional source Kabata, Z. (1972). Developmental stages of Caligus clemensi (Copepoda: Caligidae). Journal of the Fisheries Research Board of Canada 29(11):1571-1593, figs. 1-106., available online at https://doi.org/10.1139/f72-245 [details] Available for editors [request]
additional source Beamish, R., J. Wade, W. Pennell, E. Gordon, S. Jones, C. Neville, K. Lange & R. Sweeting. (2009). A large, natural infection of sea lice on juvenile Pacific salmon in the Gulf Islands area of British Columbia, Canada. Aquaculture 297(1-4):31-37., available online at https://doi.org/10.1016/j.aquaculture.2009.09.001 [details]
additional source Patanasatienkul, T., J. Sanchez, E.E. Rees, D. Pfeiffer & C.W. Revie (2015). Space-time cluster analysis of sea lice infestation (Caligus clemensi and Lepeophtheirus salmonis) on wild juvenile Pacific salmon in the Broughton Archipelago of Canada. <i>Preventive Veterinary Medicine</i>. 120(2):219-231., available online at https://doi.org/10.1016/j.prevetmed.2015.03.006 [details]
additional source Byrne, A.A., C.M. Pearce, S.F. Cross, S.R.M. Jones, S.M.C. Robinson, M.J. Hutchinson, M.R. Miller, C.A. Haddad & D.L. Johnson. (2018). Planktonic and parasitic stages of sea lice (Lepeophtheirus salmonis and Caligus clemensi) at a commercial Atlantic salmon (Salmo salar) farm in British Columbia, Canada. <em>Aquaculture.</em> 486:130-138., available online at https://doi.org/10.1016/j.aquaculture.2017.12.009 [details] Available for editors
[request]additional source Godwin, S.C., M. Krkosek, J.D. Reynolds, L.A. Rogers & L.M. Dill. (2018). Heavy sea louse infection is associated with decreased stomach fullness in wild juvenile sockeye salmon. Canadian Journal Of Fisheries And Aquatic Sciences, 75(10):1587-1595., available online at https://doi.org/10.1139/cjfas-2017-0267 [details] Available for editors
[request]additional source Hemmingsen, W., K. MacKenzie, K. Sagerup, M. Remen, K. Bloch-Hansen & A.K.D. Imsland. (2020). Caligus elongatus and other sea lice of the genus Caligus as parasites of farmed salmonids: A review. <em>Aquaculture.</em> 522:1-12. 735160 MAY 2020., available online at https://doi.org/10.1016/j.aquaculture.2020.735160 [details] Available for editors
[request]additional source Yahaya, Z.S., M.N.S. Azizah, L. Alkazmi, R. Ravi & O.B. Awosolu. (2022). First Molecular Identification of Caligus clemensi on Cultured Crimson Snapper Lutjanus rythropterus on Jerejak Island, Penang, Peninsular Malaysia. <em>Pathogens.</em> 11:1-11., available online at https://doi.org/10.3390/pathogens11020188 [details] Available for editors
[request]additional source Chang, T.Y., B.P.V. Hunt, J. Hirai & C.A. Suttle. (2023). Divergent RNA viruses infecting sea lice, major ectoparasites of fish. <em>Plos Pathogens.</em> 19(6):1-25. e1011386. Jun 2023., available online at https://doi.org/10.1093/iob/obad019 [details] Available for editors
[request]additional source Páez, D.J., J.L. Gregg, A.H. Mackenzie, S.A. Hall & P.K. Hershberger. (2023). Characteristics of a sea louse (Caligus clemensi) epizootic in wild Pacific herring (Clupea pallasii). <em>Canadian Journal Of Fisheries And Aquatic Sciences.</em> 80(11):1-10., available online at https://doi.org/10.1139/cjfas-2023-0070 [details] Available for editors
[request]additional source Hamada, A.H., M.M. Attia, M.S. Marzouk, R.M.S. Korany, M.Y. Elgendy & M. Abdelsalam. (2024). Co-infection with Caligus clemensi and Vibrio Parahaemolyticus in Egyptian Farmed Mullets: Diagnosis, Histopathology, and Therapeutic Management. <em>Egyptian Journal of Veterinary Science.</em> 56(2):353-368., available online at https://doi.org/10.21608/EJVS.2024.272080.1871 [details] Available for editors
[request]additional source Abdelsalam, M., M.M. Attia, M.S. Marzouk, R.M.S. Korany, M.Y. Elgendy, A.W. Soliman, A. Prince & A.H. Hamada. (2024). Investigating dynamics, etiology, pathology, and therapeutic interventions of Caligus clemensi and Vibrio alginolyticus co-infection in farmed marine fish. <em>Scientific Reports.</em> 14(1): 1-18. Sep 2024., available online at https://doi.org/10.1038/s41598-024-70528-x [details] Available for editors
[request]additional source Abdelsalam, M., A.W. Soliman, A.H. Hamada, A, Fadel, R.M.S. Korany & M.M. Attia. (2025). Seasonal dynamics of Caligus clemensi Infestation in European Seabass and flathead grey mullet Integrating morphological, molecular, immunological, and environmental perspectives. <em>Microbial Pathogenesis.</em> 199: 107187. Feb 2025., available online at https://doi.org/10.1016/j.micpath.2024.107187 [details]
additional source Abdelkalek, N., R.A. EL Maged, H. Ali & N. Satour. (2021). Identification of Caligus parasites infesting Morone labrax and its impact on fish health status and pathological alteration. <em>Mansoura Veterinary Medical Journal.</em> 22(1):7-12., available online at https://doi.org/10.35943/mvmj.2021.56334.1023 [details] Available for editors
[request]additional source Attia, M.M., M. Abdelsalam, H.I. Mohamed, A. Shadidizaji, A.W. Soliman & M. Warda. (2025). Punica granatum extract demonstrates antiparasitic effects against Caligus clemensi through in silico and in vitro studies. <em>Scientific Reports.</em> 15(1):1-18. Oct 2025., available online at https://doi.org/10.1038/s41598-025-19529-y [details] Available for editors
[request]additional source Jones, S.R.M., C.W. Revie & L. Stewardson. (2025). Trends in sea lice infestations on chum and pink salmon in the Broughton Archipelago remain unchanged despite removal of finfish aquaculture. <em>Diseases Of Aquatic Organisms.</em> 163:107-112. Aug 2025., available online at https://doi.org/10.3354/dao03866 [details] Available for editors
[request]additional source Revie, C.W., T. Patanasatienkul, G. McEwan & L. Stewardson. 2025. Sea lice infestation dataset for wild and farmed salmon populations on the Pacific coast of Canada (2001–2023). <em>Scientific Data.</em> 12:1-11., available online at https://doi.org/10.1038/s41597-025-05653-x [details] Available for editors
[request]additional source Butterworth, K.G., J.D. Ronquillo & R.S. McKinley. (2005). Simplified illustrated sea lice identification guide for Lepeophtheirus salmonis and Caligus clemensi in British Columbia, Canada. Aquaculture Association of Canada Special Publication 9: 101-103. [details] Available for editors
[request]additional source Galbraith, M.D. (2005). Identification of larval stages of Caligus clemensi and Lepeophtheirus salmonis from the Broughton Archipelago. Canadian Technical Report of Fisheries and Aquatic Sciences 548: 1-21. [details] Available for editors
[request]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
[request]additional source Jones, S.R.M., G. Prosperi-Porta, E. Kim, P. Callow & N.B. Hargreaves. (2006). The occurrence of Lepeophtheirus salmonis and Caligus clemensi (Copepoda: Caligidae) on three-spine stickleback Gasterosteus aculeatus in coastal British Columbia. Journal of Parasitology 92(3):473-440., available online at https://doi.org/10.1645/ge-685r1.1 [details] Available for editors
[request]additional source Kabata, Z. (1972). Developmental stages of Caligus clemensi (Copepoda: Caligidae). Journal of the Fisheries Research Board of Canada 29(11):1571-1593, figs. 1-106., available online at https://doi.org/10.1139/f72-245 [details] Available for editors
[request]
Present Present in aphia/obis/gbif/idigbio Inaccurate Introduced: alien Containing type locality
To Barcode of Life (8 barcodes)
To Biodiversity Heritage Library (4 publications)
To European Nucleotide Archive, ENA (Caligus clemensi)
To GenBank (16046 nucleotides; 1235 proteins)
To USNM Invertebrate Zoology Arthropoda Collection (5 records)
To ITIS
To Biodiversity Heritage Library (4 publications)
To European Nucleotide Archive, ENA (Caligus clemensi)
To GenBank (16046 nucleotides; 1235 proteins)
To USNM Invertebrate Zoology Arthropoda Collection (5 records)
To ITIS
From editor or global species database
