Parasite abundance and its determinants in fishes from Brazil: an eco-epidemiological approach

Amarante, Cristina Fernandes do; Tassinari, Wagner de Souza; Luque, José L.; Pereira, Maria Julia Salim

doi:10.1590/s1984-29612016033

Cited by 3 publications

(1 citation statement)

References 24 publications

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“…The present study used the database developed by Amarante et al (2015Amarante et al ( , 2016, which consists of 3,746 fish specimens from 73 species, 54 marine and 19 freshwater, collected from 1991 to 2009 along the coast of the State of Rio de Janeiro (21°-23°S and 42°-45°W) and the Guandu River (22°48'2" S, 43°37'35" W), Brazil.…”

Section: Datamentioning

confidence: 99%

Factors associated with parasite dominance in fishes from Brazil

Amarante

Tassinari

Luque

et al. 2016

Rev. Bras. Parasitol. Vet.

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The present study used regression models to evaluate the existence of factors that may influence the numerical parasite dominance with an epidemiological approximation. A database including 3,746 fish specimens and their respective parasites were used to evaluate the relationship between parasite dominance and biotic characteristics inherent to the studied hosts and the parasite taxa. Multivariate, classical, and mixed effects linear regression models were fitted. The calculations were performed using R software (95% CI). In the fitting of the classical multiple linear regression model, freshwater and planktivorous fish species and body length, as well as the species of the taxa Trematoda, Monogenea, and Hirudinea, were associated with parasite dominance. However, the fitting of the mixed effects model showed that the body length of the host and the species of the taxa Nematoda, Trematoda, Monogenea, Hirudinea, and Crustacea were significantly associated with parasite dominance. Studies that consider specific biological aspects of the hosts and parasites should expand the knowledge regarding factors that influence the numerical dominance of fish in Brazil. The use of a mixed model shows, once again, the importance of the appropriate use of a model correlated with the characteristics of the data to obtain consistent results.Keywords: Epidemiology, parasite ecology, mixed model, multiple linear regression analysis. ResumoEste estudo avaliou, por meio de modelos de regressão e sob o ponto de vista epidemiológico, a existência de fatores que podem influenciar a dominância numérica parasitária. Utilizou-se um banco de dados, contendo 3.746 espécimes de peixes e seus respectivos parasitos, para avaliar a relação da dominância parasitária com características bióticas inerentes aos hospedeiros e aos táxons parasitários estudados. Foram ajustados modelos de regressão linear multivariada, clássico e de efeitos mistos. Os cálculos foram realizados no software R (IC 95%). No ajuste do modelo de regressão linear múltipla clássico, as espécies de peixes dulcícolas, as planctívoras e o comprimento do corpo foram associadas à dominância parasitária, assim como os táxons Trematoda, Monogenea e Hirudínea. Entretanto, o ajuste do modelo de efeitos mistos demonstrou que apenas o comprimento do hospedeiro e os táxons Nematota, Trematoda, Monogenea, Hirudínea e Crustácea estão associados significativamente a dominância parasitária. Estudos que considerem os aspectos biológicos específicos dos hospedeiros e dos parasitos devem ampliar o entendimento sobre os fatores que interferem na dominância numérica em peixes do Brasil. A utilização do modelo misto demonstra, mais uma vez, a importância do uso adequado do modelo que respeite a natureza dos dados para a obtenção de resultados consistentes.Palavras-chaves: Epidemiologia, ecologia parasitária, modelo misto, análise de regressão linear múltipla.

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Section: Datamentioning

confidence: 99%

Factors associated with parasite dominance in fishes from Brazil

Amarante

Tassinari

Luque

et al. 2016

Rev. Bras. Parasitol. Vet.

Self Cite

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Patterns of monogenean abundance in native and invasive populations of Planiliza haematocheila (Teleostei: Mugilidae): interactions between climate and host defence mechanisms explain parasite release

Shvydka

Cadarso‐Suárez

Ballová

et al. 2020

International Journal for Parasitology

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First assessment of the metazoan parasite community of Gymnogeophagus balzanii (Cichliformes: Cichlidae) from Pantanal wetlands, State of Mato Grosso do Sul, Brazill

Bisaggio

Malta

Paiva

et al. 2023

Journal of Natural History

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Brevimuticaecum sp. Diagnosis: Third-stage larva. Small translucent nematodes. Ventriculus at base of oesophagus with several short ventricular appendixes, extending anteriorly and posteriorly. Intestinal caecum present. Excretory pore at nerve ring level. Conical tail without mucron. Site of infection: Liver. Remarks: According to Luque et al. (2011) third-stage larvae of Brevimuticaecum are diagnosed based on the presence of several short ventricular appendices. Fig 1. Anterior end of third-stage larva of Brevimulticaecum sp in lateral view. Abbreviations: iintestinal caecum; nnerve ring; vventriculus.

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Parasite abundance and its determinants in fishes from Brazil: an eco-epidemiological approach

Cited by 3 publications

References 24 publications

Factors associated with parasite dominance in fishes from Brazil

Factors associated with parasite dominance in fishes from Brazil

Patterns of monogenean abundance in native and invasive populations of Planiliza haematocheila (Teleostei: Mugilidae): interactions between climate and host defence mechanisms explain parasite release

First assessment of the metazoan parasite community of Gymnogeophagus balzanii (Cichliformes: Cichlidae) from Pantanal wetlands, State of Mato Grosso do Sul, Brazill

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