Species of Ergasilus von Nordmann, 1832 (Copepoda: Ergasilidae) from cichlid fishes in Lake Tanganyika

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Název česky Druhy rodu Ergasilus von Nordmann, 1832 (Copepoda: Ergasilidae) na cichlidách v jezeře Tanganika
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MÍČ Robert ŘEHULKOVÁ Eva SEIFERTOVÁ Mária

Rok publikování 2023
Druh Článek v odborném periodiku
Časopis / Zdroj Parasitology
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
www https://doi.org/10.1017/S0031182023000239
Doi http://dx.doi.org/10.1017/S0031182023000239
Klíčová slova Africa; cichlids; diversity; parasitic crustaceans; Tanganyika
Popis Ergasilus (von Nordmann, 1832) (Ergasilidae) is a species-rich group of parasitic copepods with a wide distribution in freshwater, marine and brackish environments. Up to now, 9 species of Ergasilus are known from cichlid fishes in Africa. In this study, 5 species, including 3 new, were collected from the gills of 12 cichlid species (11 genera: Bathybates , Ctenochromis , Eretmodus , Gnathochromis , Lamprologus , Neolamprologus , Ophthalmotilapia , Perissodus , Simochromis , Spathodus and Tanganicodus) of the northeastern shore of Lake Tanganyika in Burundi, namely E. macrodactylus (Sars, 1909), E. megacheir (Sars, 1909), E. caparti n. sp., E. parasarsi n. sp. and E. parvus n. sp. All species found were identified and described on the basis of adult female specimens using an integrative taxonomy approach mixing morphological characterization and molecular analyses of 2 ribosomal DNA markers (partial 18S and 28S rDNA sequences). An identification key for Ergasilus species from Lake Tanganyika is included. This study provides the first molecular data for Ergasilus species in Africa. The phylogenetic analyses suggest that the Ergasilus species parasitizing Lake Tanganyikan cichlids form a well-supported clade within the Ergasilidae. However, their phylogenetic relationships with other congeners still remain unclear due to a lack of molecular data for this diverse genus.
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