Sphincterodiplostomum musculosum (Digenea, Diplostomidae) infecting Steindachnerina insculpta (Characiformes, Curimatidae) in the Chavantes Reservoir, Southeastern Brazil

Autor(es)

Zago, Aline Cristina ; Franceschini, Lidiane ; Ramos, Igor Paiva ; Penha Zica, Erica de Oliveira ; Wunderlich, Alison Carlos ; Carvalho, Edmir Daniel ; da Silva, Reinaldo Jose

• Tipo de documento: Artigo Científico
• Fonte: REVISTA BRASILEIRA DE PARASITOLOGIA VETERINARIA; v. 22, n. 1, p. 6-pg., 2013-01-01.

Resumo

This study aimed to report the infection by Sphincterodiplostomum musculosum metacercariae in Steindachnerina insculpta from the Chavantes Reservoir, medium Paranapanema River, municipality of Ipaussu, State of Sao Paulo, Brazil. Thirty specimens of S. insculpta were collected and 29 were infected with S. musculosum metacercariae (prevalence = 96.67%) in the eyes and visceral cavity. The mean intensity of infection and abundance were 96.6 +/- 29.41 (7-846) and 93.3 +/- 28.6 (0-846), respectively. Positive correlation was observed between parasite abundance in the eyes and standard length (rs = 0.5, p = 0.005), total weight (rs = 0.649, p = 0.0001), and condition factor (rs = 0.439, p = 0.0154). The high parasitism rates by S. musculosum metacercariae in S. insculpta can be an indicative that this fish species is highly susceptible to infection by this diplostomid, and even reflect the presence of a large abundance of the intermediate host. Moreover, S. musculosum metacercariae are reported for the first time in S. insculpta. (AU)

• Processo FAPESP: 07/58246-4 - As interferencias da tilapicultura em sistema de tanques-rede na represa de chavantes (medio rio paranapanema, sp/pr): ictiofauna agregada, condicoes limnologicas e dispersao de parasitos.
• Beneficiário: Edmir Daniel Carvalho
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 08/58792-1 - Sanidade e seguranca alimentar do pescado tilapias-do-nilo (oreochromis niloticus) produzido em sistema de tanques-rede no reservatorio de chavantes, sp
• Beneficiário: Reinaldo José da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Regular