THE PARASITIC CRUSTACEANS OF SERRASALMUS RHOMBEUS (LINNAEUS, 1776) (CHARACIFORMES: SERRASALMIDAE) FROM FLOODPLAIN LAKES OF THE SOLIMÕES RIVER, CENTRAL AMAZON, BRAZIL

Authors

  • Mariel Acácio Instituto Nacional de Pesquisas da Amazônia, Av. André Araújo, Aleixo, Manaus, Amazonas. https://orcid.org/0000-0001-6949-3315
  • Ângela Maria Bezerra Varella Instituto Nacional de Pesquisas da Amazônia, Av. André Araújo, Aleixo, Manaus, Amazonas
  • José Celso de Oliveira Malta Instituto Nacional de Pesquisas da Amazônia, Av. André Araújo, Aleixo, Manaus, Amazonas https://orcid.org/0000-0003-1496-2190

DOI:

https://doi.org/10.24039/rnh2012621006

Keywords:

Copepoda, Branchiura, fish parasites, freshwater

Abstract

The parasites of 45 Serrasalmus rhombeus (Linnaeus, 1776) were collected during the dry season in six floodplain lakes of the Solimões River. The prevalence was 73.3%, the mean intensity 20.5 and the mean abundance 15 crustaceans. Three species of crustaceans parasitized S. rhombeus. Two species of Copepoda infected the gill filaments, Ergasilus yumaricus Malta, 1995 and Myracetyma piraya Malta & Varella, 1993 and one of Branchiura infected the pectoral fin and gill cavity, Argulus chicomendesi
Malta & Varella, 2000. Ergasilus yumaricus was the dominant species (92.3%) and the only one that showed significant differences in their abundance among the six lakes sampled. The fishes from Baixio Lake had the highest mean abundance (H = 11.2986, p = 0.04). There was a positive correlation between abundance and the total length of S. rhombeus. There was no correlation between the number of parasites and sex of S. rhombeus.

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Published

2012-12-12

How to Cite

Acácio, M., Bezerra Varella, Ângela M., & de Oliveira Malta, J. C. (2012). THE PARASITIC CRUSTACEANS OF SERRASALMUS RHOMBEUS (LINNAEUS, 1776) (CHARACIFORMES: SERRASALMIDAE) FROM FLOODPLAIN LAKES OF THE SOLIMÕES RIVER, CENTRAL AMAZON, BRAZIL. Neotropical Helminthology, 6(2), 179–184. https://doi.org/10.24039/rnh2012621006

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Artículos Originales