Abstract

ANDERSON D., CEZAR  and  AMATO, J. F. R.. Corynosoma sp (ACANTHOCEPHALA: POLYMORPHIDAE) EM Umbrina canosal (OSTEICHTHYES: SCIAENIDAE), DO LITORAL DO ESTADO DO RIO GRANDE DO SUL, BRASIL. Parasitol. día [online]. 1998, vol.22, n.1-2, pp. 45-48. ISSN 0716-0720.  http://dx.doi.org/10.4067/S0716-07201998000100009.

Forty-three specimens of Umbrina canosai captured in the littoral of the State of the Rio Grande do Sul, Brazil, were examined between August 1991 and February 1992. Forty fishes (93%) showed infection by the acanthocephalan Corynosoma sp. (cistacanth) in the abdominal cavity and intestinal mesentery, with a mean intensity of 43.3, and relative density of 40.3 Corynosoma sp showed a overdispersed distribution. The intensity of Corynosoma was positively correlated with the host total length, but, the prevalence was not. The prevalence and intensity of Corynosoma sp. was not influenced by the host sex.

Keywords : Acanthocephala; Polymorphidae; Corynosoma; Umbrina canosai; peixes marinhos; Brazil.