Parasite Community of Cichla kelberi (Perciformes, Cichlidae) in the Três Marias Reservoir, Minas Gerais, Brazil

  • Santos-Clapp M
  • Brasil-Sato M
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Abstract

A total of 112 specimens of yellow peacock bass, Cichla kelberi, were collected in the Três Marias Reservoir, upper São Francisco River, State of Minas Gerais, between 2004 and 2005. Twelve species of parasites were collected: two species of ectoparasites (the monogenetic Gussevia sp. and the copepod Ergasilus sp.); and ten species of endoparasites, including four species of adult endoparasites: the cestodes Proteocephalus macrophallus and P. microscopicus, and the nematodes: Capillostrongyloides sentinosa and Rhabdochona acuminata, and six species of larval endoparasites: the metacercariae of Austrodiplostomum compactum and the nematodes: Hysterothylacium sp., Contracaecum sp. Type 1, Procamallanus (Spirocamallanus) inopinatus, Spiroxys sp., and Goezia sp.. A significant positive correlation in the abundance of the two adult endoparasites species, P. macrophallus and P. microscopicus, may indicate that such associated species had the same ecological requirements. The positive correlations between the prevalence of the larval endoparasites, Hysterothylacium sp. and A. compactum, may indicate that there was opportunism for the two generalists species. Ergasilus sp., C. sentinosa, R. acuminata and Hysterothylacium sp. were recorded for the first time in C. kelberi, and this increased their list of known hosts. In addition, both proteocephalid species and C. sentinosa can extend their known biogeographical distribution to the Três Marias Reservoir.Cento e doze espécimes de Cichla kelberi foram coletados no Reservatório de Três Marias, Alto São Francisco, Três Marias, MG, entre 2004 e 2005. Foram coletadas doze espécies de parasitos matazoários, sendo duas espécies de ectoparasitos: os monogenéticos Gussevia sp. e os copépodos Ergasilus sp.; e dez espécies de endoparasitos, sendo quatro espécies de endoparasitos adultos: os cestoides Proteocephalus macrophallus e P. microscopicus e os nematoides: Capillostrongyloides sentinosa e Rhabdochona acuminata, além de seis espécies de endoparasitos larvais: metacercárias de Austrodiplostomum compactum e os nematoides: Hysterothylacium sp., Contracaecum sp. Tipo 1, Procamallanus (Spirocamallanus) inopinatus, Spiroxys sp. e Goezia sp.. As associações positivas significativas observadas para os endoparasitos adultos P. macrophallus e P. microscopicus com correlação positiva entre suas abundâncias podem indicar que essas espécies tenham os mesmos requerimentos ecológicos; e para as espécies de endoparasitos larvais Hysterothylacium sp. e A. compactum, com correlações positivas entre suas prevalências podem indicar que houve oportunismo para ambas as espécies. Ergasilus sp., C. sentinosa, R. acuminata e Hysterothylacium sp. são registrados pela primeira vez em C. kelberi, ampliando assim a listagem de hospedeiros. Portanto, o Reservatório de Três Marias constitui nova localidade para ambas as espécies de proteocefalídeos e para C. sentinosa, ampliando assim a distribuição geográfica.

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Santos-Clapp, M. D., & Brasil-Sato, M. C. (2014). Parasite Community of Cichla kelberi (Perciformes, Cichlidae) in the Três Marias Reservoir, Minas Gerais, Brazil. Revista Brasileira de Parasitologia Veterinária, 23(3), 367–374. https://doi.org/10.1590/s1984-29612014059

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