Seasonality of Eustrongylides sp. (Nematoda: Dioctophymatidae) larvae in fishes from Paraná River, South-western Brazil

Authors

  • Maurício Laterça MARTINS Laboratório AQUOS - Sanidade de Organismos Aquáticos, Departamento de Aquicultura, Centro de Ciências Agrárias (CCA), Universidade Federal de Santa Catarina (UFSC) http://orcid.org/0000-0002-0862-6927 (unauthenticated)
  • Rosemeire de Souza SANTOS Centro de Aquicultura, UNOESTE, Presidente Prudente, SP, Brasil
  • Newton Garcia MARENGONI Centro de Aquicultura, UNOESTE, Presidente Prudente, SP, Brasil
  • Haroldo Kazuyuki TAKAHASHI Centro de Aquicultura, UNOESTE, Presidente Prudente, SP, Brasil
  • Eduardo Makoto ONAKA Instituto de Pesca, APTA-SAA, São José do Rio Preto, SP http://orcid.org/0000-0003-2539-0036 (unauthenticated)

Keywords:

Cichla ocellaris, Eustrongylides, Hoplias malabaricus, infection, Plagioscion squamosissimus, seasonality

Abstract

This work evaluated the infection with larvae of Eustrongylides sp. (Nematoda: Dioctophymatidae) in Cichla piquiti, Plagioscion squamosissimus and Hoplias malabaricus collected in Paraná River, near Presidente Epitácio City, São Paulo State, Southwestern Brazil. Fishes were captured monthly with net and hook from September 2000 to August 2001 for parasitological analyses. The data were analyzed by season. Prevalence and mean intensity of infection were higher in H. malabaricus than in C. piquiti in winter. The mean parasite abundance in H. malabaricus was also higher in P. squamosissimus. Females of H. malabaricus showed higher prevalence rate than males. The most frequent occurrence in hosts was from 1 to 4 parasites located in muscle and mesentery. This work was able to demonstrate H. malabaricus as the most susceptible fish to larvae of Eustrongylides sp. in this region of Paraná River.

 

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Published

2018-11-04

Issue

Vol. 35 No. 1 (2009): BOLETIM DO INSTITUTO DE PESCA

Section

Scientific Article

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