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Parasitic copepods from reef grunts [Teleostei, Haemulidae] with description of a new species of Lernanthropus [Siphonostomatoida, Lernanthropidae] from the Mexican Caribbean

100%

Suarez-Morales E., Reyes-Lizama C., Gonzalez-Solis D.

Acta Parasitologica

2010

tom 55

nr 2

167-176

During a parasitological survey of the reef ichthyofauna in the Caribbean coast of Mexico, parasitic siphonostomatoid copepods were obtained from the white grunt Haemulon plumierii (Lacepède) and the blue striped grunt H. sciurus (Shaw). Caligus haemulonis Krøyer, 1863 has been recorded from both species of Haemulon in the Northwestern Tropical Atlantic, but it is reported herein for the first time from Mexico. The prevalence and intensity of infection of C. haemulonis has not previously been evaluated in the Caribbean grunts; during this survey, prevalence was highest in H. sciurus; values are similar to those found in other haemulids. Lernanthropus chacchi sp. nov. can be distinguished from its closest congener, L. rathbuni Wilson, 1922, by its female having a dorsal plate covering the entire urosome and the lack of lateral notches at the base of the modified third legs, the male has relatively longer third legs, different body proportions and ornamentation of the first and second legs. This is the third species of Lernanthropus known from reef grunts in the Caribbean and the second species of the genus described from Mexican waters. The infection prevalence of the new species on H. sciurus (24%) was higher than that known for L. rathbuni from other haemulids. Taxonomic illustrations of females and males of both species are also provided. Other crustacean ectoparasites included the copepod Hatschekia spp. and praniza larvae of a gnathid isopod.

Caligus tenuifurcatus Wilson, 1937 [Copepoda, Siphonostomatoida], a parasite of centropomid and lutjanid teleosts from a coastal system of the Mexican Pacific

100%

Suarez-Morales E., Ho J., Santana-Pineros A. M.

Acta Parasitologica

2008

tom 53

nr 4

Specimens of the parasitic siphonostomatoid copepod Caligus tenuifurcatus Wilson, 1937 were collected from the oral cavity of the yellowfin snook, Centropomus robalito Jordan et Gilbert; the white snook, C. viridis Lockington (Perciformes, Centropomidae), and the yellow snapper, Lutjanus argentiventris (Peters) (Perciformes, Lutjanidae), from a Pacific coastal system of Mexico. Infection was most intense on C. viridis. Caligus tenuifurcatus can be distinguished from its closest congener, C. bonito Wilson, by the body proportions and the basal ornamentation of the medial setae of the second exopodal segment of leg 1. Taxonomic illustrations are provided of both female and male. This is the third record of C. tenuifurcatus; hitherto, it was known only as a parasite of the roosterfish Nematistius pectoralis Gill (Perciformes, Nematistiidae) from Panama and the Gulf of California. Hence, the finding of C. tenuifurcatus as a parasite of two species of centropomids and one species of lutjanid represents a significant expansion of the known host range of this copepod in the eastern tropical Pacific.

Ograniczanie wyników

2 Acta Parasitologica

2 Suarez-Morales E.

1 Gonzalez-Solis D.

1 Ho J.

1 Reyes-Lizama C.

1 Santana-Pineros A. M.

1 2010

1 2008

Wyniki wyszukiwania

Parasitic copepods from reef grunts [Teleostei, Haemulidae] with description of a new species of Lernanthropus [Siphonostomatoida, Lernanthropidae] from the Mexican Caribbean

Caligus tenuifurcatus Wilson, 1937 [Copepoda, Siphonostomatoida], a parasite of centropomid and lutjanid teleosts from a coastal system of the Mexican Pacific