Revista de Biología Tropical ISSN Impreso: 0034-7744 ISSN electrónico: 2215-2075

OAI: https://revistas.ucr.ac.cr/index.php/rbt/oai
A new <i>Lepeophtheirus</i> (Copepoda: Siphonostomatoida: Caligidae) from Isla del Coco National Park, Costa Rica, Eastern Tropical Pacific
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Keywords

parasitic crustaceans
zooplankton
diversity
copepods
crustáceos parásitos
zooplancton
diversidad
copépodos
nueva especie
isla del Coco
Costa Rica

How to Cite

Suárez-Morales, E., & Gasca, R. (2012). A new <i>Lepeophtheirus</i> (Copepoda: Siphonostomatoida: Caligidae) from Isla del Coco National Park, Costa Rica, Eastern Tropical Pacific. Revista De Biología Tropical, 60(S3), 235–242. https://doi.org/10.15517/rbt.v60i3.28371

Abstract

Among the several groups of copepods that are teleost parasites, the siphonostomatoid family Caligidae is by far the most widespread and diverse. With more than 108 nominal species, the caligid genus Lepeophtheirus von Nordmann is one of the most speciose. There are no reports of this genus in Costa Rican waters. A new species of Lepeophtheirus is herein described based on female specimens collected from plankton samples in waters off Bahía Wafer, isla del Coco, an oceanic island in the Eastern Tropical Pacific. The new species, L. alvaroi sp. nov., has some affinities with other congeners bearing a relatively short abdomen, a wider than long genital complex and a 3-segmented exopod of leg 4. it differs from most of these species by the presence of an unbranched maxillular process and by the relative lengths of the terminal claws of leg 4, with two equally long elements. it is most closely related to two other Eastern Pacific species: L. dissimulatus Wilson, 1905 and L. clarionensis Shiino, 1959. it differs from these species by the proportions and shape of the genital complex, the shape of the sternal furca, the relative length of the maxillar segments, the absence of a pectiniform process on the distal maxillar segment, the length of leg 4 and the armature of leg 5. The new species represents the first Lepeophtheirus described from Costa Rican waters of the Pacific. The low diversity of this genus in this tropical region is explained by its tendency to prefer hosts from temperate latitudes. Until further evidence is found, the host of this Lepeophtheirus species remains unknown. Citation: Suárez-Morales, E. & R. Gasca. 2012. A new Lepeophtheirus (Copepoda: Siphonostomatoida: Caligidae) from isla del Coco National Park, Costa Rica, Eastern Tropical Pacific. Rev. Biol. Trop. 60 (Suppl. 3): 235-242. Epub 2012 Dec 01.
https://doi.org/10.15517/rbt.v60i3.28371
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References

Boxshall, G.A. & D.R. Bellwood. 1981. A redescription of Lepeophtheirus erecsoni Thomson, 1891 and some comparisons with L. scutiger Shiino, 1952 and a new species, L. sheni (Crustacea: Copepoda). J. Roy. Soc. N. Z. 11:75-85.

Boxshall, G.A. & M.A. Montú. 1997. Copepods parasitic on Brazilian coastal fishes: a handbook. Nauplius 5: 1-225.

Boxshall, G.A. & S.H. Halsey. 2004. An introduction to Copepod Diversity. The Ray Society, London, United Kingdom.

Castro, R. & H. Baeza. 1981. Lepeophtheirus dissimulatus Wilson, 1905 and Lepeophtheirus zbigniewi new species (Copepoda: Caligidae) parasites of inshore fishes from the Pacific coast of Chile, South America. Bull. Mar. Sci. 3: 318-328.

Causey, D. 1960. Parasitic Copepoda from Mexican coastal fishes. Bull. Mar. Sci. 10: 323-337.

Cressey, R. & H.B. Cressey. 1980. Parasitic copepods of mackerel- and tuna-like fishes (Scombridae) of the World. Smithson. Contr. Zool. 311:1-186.

Dojiri, M. 1979. Two new species of Lepeophtheirus (Copepoda: Caligidae) parasitic on fishes from southern California waters. Parasitology 78: 251-262.

Graziano, L. 2001. Cruise Report S-177, Scientific Activities Undertaken Aboard SSv Robert C. Seamans, San Diego, California-Puntarenas, Costa Rica, October 10 2001-November 18, 2001. Sea Education Association, Woods Hole, Massachusetts. 45p.

Ho, J.-s., Gómez S., Fajer-Avila E. 2001: Lepeophtheirus simplex sp. n., a caligid copepod (Siphonostomatoida) parasitic on “botete” (bullseye puffer, Sphoeroides annulatus) in Sinaloa, Mexico. Folia Parasitol. 48: 240-248.

Ho, J.-S. & C.-L. Lin. 2004. Sea Lice of Taiwan (Copepoda: Siphonostomatoida: Caligidae). The Sueichan Press, Keelung, Taiwan.

Jackson, D. & D. Minchin. 1992. Aspects of the reproductive output of two caligid copepod species on cultivated salmon. invertebr. Reprod. Dev. 22: 87-90.

Johnson, S. C., J. W. Treasurer, S. Bravo, K. Nagasawa & Z. Kabata. 2004. A review of the impact of parasitic copepods on marine aquaculture. Zool. Stud. 43: 229-243.

Kabata, Z. 1979. Parasitic Copepoda of British Fishes. The Ray Society, British Museum, London, United Kingdom.

Luque, J.L. & L.E.E. Tavares. 2007. Checklist of Copepoda associated with fishes from Brazil. Zootaxa 1579: 1-39.

Morales-Ramírez, A. 2008. Caracterización cualitativa del zooplancton del Área de Conservación Marina isla del Coco (ACMiC), Océano Pacífico de Costa Rica. Rev. Biol. Trop.56 (Supl. 2): 159-169.

Muñoz, G. & v. Olmos. 2007. Revisión bibliográfica de especies ectoparásitas y hospedadoras de sistemas acuáticos de Chile. Rev. Biol. Mar. Oceanogr. 42: 89-148.

Shiino, S.M. 1959. Ostpazifische parasitierende Copepoden. Rep. Fac. Fish. Pref. Univ. Mie 3: 267-333.

Villalba, C. & L. Durán. 1985. Lepeophtheirus mugiloidis sp. n. (Copepoda: Caligidae), parasito de Mugiloides chilensis (Molina, 1782) (Pisces: Mugiloididae), en Chile. Bol. Soc. Biol. Concepción 56: 59-66.

Venmathi Maran, B.A. & S. Ohtsuka. 2008. Descriptions of caligiform copepods in plankton samples collected from East Asia: accidental occurrences or a new mode of life cycles? Plankton Benthos Res. 3: 202-215.

Wilson, C.B. 1905. North American parasitic copepods belonging to the family Caligidae. Part 1. The Caliginae. Proc. U.S. Nat. Mus. 28: 479-672.

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