| Full text | |
| Author(s): |
Lidiane Franceschini
[1]
;
Aline Cristina Zago
[1]
;
Maria Conceição Zocoller-Seno
[3]
;
Rosicleire Veríssimo-Silveira
[4]
;
Alexandre Ninhaus-Silveira
[4]
;
Reinaldo José da Silva
[6]
Total Authors: 6
|
| Affiliation: | [1] Univ Estadual Paulista, UNESP, Inst Biociencias, Programa Posgrad Ciencias Biol Zool, BR-18618970 Botucatu, SP - Brazil
[2] Universidade Estadual Paulista - UNESP. Departamento de Biologia e Zootecnia - Brasil
[3] Universidade Estadual Paulista - UNESP. Departamento de Biologia e Zootecnia - Brasil
[4] Univ Estadual Paulista, UNESP, Dept Biol & Zootecnia, Ilha Solteira, SP - Brazil
[5] Universidade Estadual Paulista - UNESP. Instituto de Biociências. Departamento de Parasitologia - Brasil
Total Affiliations: 5
|
| Document type: | Journal article |
| Source: | Revista Brasileira de Parasitologia Veterinária; v. 22, n. 4, p. 475-484, 2013-12-00. |
| Abstract | |
Fifty specimens of Cichla piquiti were collected from the Paraná River downstream of the Ilha Solteira Hydroelectric Power Station in Brazil and surveyed for endohelminth parasites. All fish were parasitised by at least one helminth species (overall prevalence [P] = 100%). Eight parasite taxa were present: the nematode Procamallanus (Procamallanus) peraccuratus in the intestines; third-stage larvae of the anisakids Contracaecum sp. and Hysterothylacium sp. in the visceral cavity, mesentery and serosa of the stomach and intestines and on the liver and spleen; the trematodes Austrodiplostomum compactum in the eye (metacercariae) and Genarchella genarchella in the stomach; and the cestodes Proteocephalus macrophallus, Proteocephalus microscopicus, and Sciadocephalus megalodiscus in the intestines. Hysterothylacium sp. larvae (P = 86%) and P. microscopicus (P = 74%) were the most prevalent parasites. Anisakids were more prevalent and abundant in the dry season. A negative correlation between the abundances of Hysterothylacium sp. and P. microscopicus was observed, suggesting a competitive/antagonistic relationship between these parasites. Cichla piquiti represents a new host for four parasite species. These new records significantly increase the list of parasites of C. piquiti, contributing to the knowledge of the host-parasite relationship and the geographical distribution of these helminths. (AU) | |