<abstract xmlns="http://www.w3.org/1999/xhtml"><p>This study compared the monogeneans community in <italic>C. monoculus</italic> from the Tapajós River (state of Pará) and Jari River (state of Amapá), northern Brazil. A total of 2188 monogeneans belonging to eight taxa were collected from the gills of fish: <italic>Gussevia arilla</italic>, <italic>Gussevia longihaptor</italic>, <italic>Gussevia tucunarense</italic>, <italic>Gussevia undulata</italic>, <italic>Sciadicleithrum ergensi</italic>, <italic>Sciadicleithrum umbilicum</italic>, <italic>Sciadicleithrum uncinatum</italic> and <italic>Tucunarella cichlae</italic>. <italic>Gussevia arilla</italic> was the dominant species for <italic>C. monoculus</italic> from the Tapajós River basin, while <italic>S. umbilicum</italic> predominated among the hosts from the Jari River basin. For the two populations of <italic>C. monoculus</italic>, the prevalence, mean intensity and mean abundance of monogeneans were different and the of parasites community had a high qualitative similarity (87.5 %). The monogeneans community of <italic>C. monoculus</italic> was characterized by high species richness, with infection values varying from low to moderate. The geographic distance and differences in environmental characteristics arising from the same did not influence the richness of species of monogeneans infesting <italic>C. monoculus</italic> in the Tapajós and Jari rivers, but appear to have been determinants in the differences observed in the structure of the monogenean communities in each region.</p></abstract>

This study compared the monogeneans community in C. monoculus from the Tapajós River (state of Pará) and Jari River (state of Amapá), northern Brazil. A total of 2188 monogeneans belonging to eight taxa were collected from the gills of fish: Gussevia arilla, Gussevia longihaptor, Gussevia tucunarense, Gussevia undulata, Sciadicleithrum ergensi, Sciadicleithrum umbilicum, Sciadicleithrum uncinatum and Tucunarella cichlae. Gussevia arilla was the dominant species for C. monoculus from the Tapajós River basin, while S. umbilicum predominated among the hosts from the Jari River basin. For the two populations of C. monoculus, the prevalence, mean intensity and mean abundance of monogeneans were different and the of parasites community had a high qualitative similarity (87.5 %). The monogeneans community of C. monoculus was characterized by high species richness, with infection values varying from low to moderate. The geographic distance and differences in environmental characteristics arising from the same did not influence the richness of species of monogeneans infesting C. monoculus in the Tapajós and Jari rivers, but appear to have been determinants in the differences observed in the structure of the monogenean communities in each region.

Community of Monogenea in populations of <italic>Cichla monoculus</italic> from two tributaries of the Amazon River in the Northern Brazil

Program in Amazonian Continental Aquatic Resources (PPG-RACAM)

Universidade Federal do Oeste do Pará - UFOPA

Instituto de Ciências e Tecnologia das Águas - ICTA

Department of Ecology and Evolutionary Biology

Universidade Federal de São Paulo (UNIFESP)

Helminthologia

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Community of Monogenea in populations of  from two tributaries of the Amazon River in the Northern Brazil

This study compared the monogeneans community in C. monoculus from the Tapajós River (state of Pará) and Jari River (state of Amapá), northern Brazil. A total...

Community of Monogenea in populations of Cichla monoculus from two tributaries of the Amazon River in the Northern Brazil

Published Online: Mar 06, 2019

Page range: 1 - 10

Received: May 04, 2018

Accepted: Nov 09, 2018

DOI: https://doi.org/10.2478/helm-2018-0043

Keywords
Ectoparasites, Jari River, Monogenean, Peacock bass, Tapajós River, Tucunaré

© 2019 M. S. B. Oliveira et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Community of Monogenea in populations of Cichla monoculus from two tributaries of the Amazon River in the Northern Brazil

Published Online: Mar 06, 2019

Page range: 1 - 10

Received: May 04, 2018

Accepted: Nov 09, 2018

DOI: https://doi.org/10.2478/helm-2018-0043

KeywordsEctoparasites, Jari River, Monogenean, Peacock bass, Tapajós River, Tucunaré

© 2019 M. S. B. Oliveira et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Ectoparasites, Jari River, Monogenean, Peacock bass, Tapajós River, Tucunaré