Parasitology Research

, Volume 118, Issue 12, pp 3337–3347 | Cite as

Long-term temporal variation in the parasite community structure of metazoans of Pimelodus blochii (Pimelodidae), a catfish from the Brazilian Amazon

  • Luciano Pereira Negreiros
  • Alexandro Cezar Florentino
  • Felipe Bisaggio Pereira
  • Marcos Tavares-DiasEmail author
Fish Parasitology - Original Paper


The Amazon represents one of the most complex biomes in the world; however, the temporal variations in parasite community structure of fishes inhabiting this region remain poorly understood. Therefore, processes generating such variations are still unknown. The present study evaluated the long-term temporal variation of community structure of metazoan parasites of Pimelodus blochii collected in Iaco River, State of Acre (Southwestern Brazilian Amazon). A total of 196 parasites were collected over a 6-year period (2012–2017). Twenty-four different taxa of parasites were found, of which 5 Monogenea, 11 Nematoda, 3 Digenea, 1 Acanthocephala, 1 Cestoda, and 3 Crustacea. The overall species richness ranged from 4 in 2012 to 17 in 2016, in which nematodes (larvae and adults) showed higher numerical dominance, diversity, and species richness. However, the annual species richness was similar between the study years, except in 2016, where it showed a distinctly higher value. The overall parasite diversity was also different in 2012 and 2016, whereas the overall abundance differed in 2013 and 2017. The prevalence and abundance of some infracommunities of parasites varied over time. The temporal changes in the parasite community structure of P. blochii are probably related to variations in host-related features, i.e., body size and shift in diet composition as well as to the occurrence of parasites with distinct life history and biology (mainly monogeneans, digeneans, and nematodes). This is the first evaluation of a long-term temporal variation in the structure of the parasite community in fish from the Amazon.


Diversity Ecology Helminths Nematodes 


Funding information

The authors thank the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq, Brazil) for the productivity research grant awarded to Dr. M. Tavares-Dias (# 303013/2015-0).

Compliance with ethical standards

Ethical Disclosures

All procedures involving animals were authorized by the Instituto Chico Mendes para Conservação da Biodiversidade (acronym SISBIO, No. 60899-1) and were strictly according to the protocols and rules of the Committee on Ethics of Animal Use of the Embrapa

Amapá (Protocol No. 002-CEUA-CPAFAP).


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Insituto Federal do Acre (IFAC)Rio BrancoBrazil
  2. 2.Universidade Federal do Amapá (UNIFAP)MacapáBrazil
  3. 3.Programa de Pós-Graduação em Biologia Animal, Instituto de Biociências (INBIO)Universidade Federal de Mato Grosso do Sul (UFMS)Campo GrandeBrazil
  4. 4.Embrapa AmapáMacapáBrazil

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