Lepeophtheirus azoricus n. sp. (Copepoda: Caligidae) parasitic on dusky grouper, Epinephelus marginatus, from Atlantic waters off the Azores, Portugal
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A new species of caligid copepod, Lepeophtheirus azoricus n. sp., is described from the dusky grouper, Epinephelus marginatus (Lowe), caught in Atlantic waters off Faial Island in the Azores. Both sexes of the parasite were collected from the body surface of the host by the application of osmotic shock. The new species can be distinguished from its congeners by the following set of characters: (1) an obvious conical projection on the posterolateral corners of the genital complex, (2) the relative lengths of the second and third spines on the terminal exopodal segment of leg 4, (3) the relative lengths of the setal elements on legs 5 and 6 of the male, (4) the ornamentation, and lack of a myxal process, on the proximal segment of the maxilliped in both sexes, (5) the unusual structure of the male antenna.
KeywordsLepeophtheirus Dusky grouper Parasite Copepod Atlantic Ocean
The authors gratefully acknowledge Flying Sharks and MARE for their technical and logistic support, and all the colleagues who assisted in the field and laboratory work. Special thanks go to Luís Silva and Nelson Campino, from Flying Sharks, for their valuable technical support on planning and collecting the dusky grouper and to António Godinho, from the University of Azores, for the materials and facilities provided for this work. The research conducted complies with the current Portuguese Law. We would also like to thank Dr. Masahiro Dojiri from California, USA for his comments on the identification of the new species and also for providing valuable documents. We would also like to thank Assoc. Prof. Dr. Kasım Ocakoglu, Head of Advanced Technologies Research & Application Center (MEITAM) of the University of Mersin, Turkey, and Prof. Suphan Karaytug and Ms. Seher Kuru from Mersin University for their administrative and technical support during the SEM and LM studies.
This study was partially supported by Flying Sharks—Collections, Consulting, Conservation and Education.
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
All applicable institutional, national, and international guidelines for the care and use of animals were followed.
- Boxshall G, Walter TC (2015) Lepeophtheirus von Nordmann, 1832. In: Walter TC, Boxshall G (2017) World of Copepods database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=135568. Accessed 13 Mar 2017
- Capart A (1953) Quelques Copépodes parasites de poissons marins de la région de Dakar. Bull Inst Fr Afr Noire 15(2):647–671Google Scholar
- Froese R, Pauly D (eds) (2017) FishBase. World Wide Web electronic publication. http://www.fishbase.org. Accessed 13 Mar 2017
- Huys R, Boxshall GA (1991) Copepod evolution. The Ray Society, LondonGoogle Scholar
- Kabata Z (1979) Parasitic Copepoda of British fishes. The Ray Society, LondonGoogle Scholar
- Kim IH (1998) Illustrated encyclopedia of fauna and flora of Korea. Vol. 38. Cirripedia, Symbiotic Copepoda, and Pycnogonida. Ministry of Education in Korea, SeoulGoogle Scholar
- Kirtisinghe P (1964) A review of the parasitic copepods of fish recorded from Ceylon with description of additional forms. Bull Fish Res Stn Ceylon 17(1):45–132Google Scholar
- Özak AA, Yanar A, Boxshall GA (2017) The discovery of Caligus macrurus Heller, 1865 (Copepoda: Caligidae) in the Mediterranean Sea, and the recognition of Sciaenophilus van Beneden, 1852 as a junior synonym of Caligus Müller, 1785. Syst Parasitol 94(1):97–109. https://doi.org/10.1007/s11230-016-9682-4 CrossRefPubMedGoogle Scholar
- Shiino SM (1952) Copepods parasitic on Japanese fishes. 1. On the species of Caligus and Lepeophtheirus. Rep Fac Fish Prefect Univ Mie 1:79–113Google Scholar
- Shiino SM (1960) Copepods parasitic on the fishes collected on the coast of province Shima, Japan. Rep Fac Fish Prefect Univ Mie 3(3):471–500Google Scholar
- Villalba C, Durán L (1986) Lepeophtheirus mugiloidis sp. n. (Copepoda: Caligidae), parasito de Mugiloides chilensis (Molina, 1782) (Pisces: Mugiloididae). Chile Boln Soc Biol Concepción 56:59–66Google Scholar
- Wildgoose WH (2001) BSAVA manual of ornamental fish. Wiley, GloucesterGoogle Scholar
- Yamaguti S (1936) Parasitic copepods from fishes of Japan. Part 2. Caligoida, I. Kyoto Imperial University. Published by authorGoogle Scholar