Prevalence for nematodes of hygiene-sanitary importance in fish from Colares Island and Vigia, Pará, Brasil
Prevalência de nematoides de importância higiênico-sanitária em peixes da ilha de Colares e Vigia, Pará, Brasil
Rev. bras. ciênc. vet; 22 (2), 2015
Publication year: 2015
Zoonotic parasites can infect fish and be a serious threat to human health. The objective of this research was to estimate the
prevalence for the main fish-borne zoonotic parasitic diseases of freshwater fish marketed in Colares Island and Vigia, Pará, Brazil.
In February, 2012, 85 (40 of Colares and 45 of Vigia) fish were randomly sampled by means of net fishing. Eighty and 76% of fish
sampled were parasitized, being silver croacker (Plagioscion squamosissimus), kumakuma (Brachyplatystoma filamentosum), and
gilded catfish (Brachyplatystoma rousseauxii) the species most parasitized. The most prevalent parasites were Anisakis (50% in
Colares and 49% in Vigia) and Contracaecum (60% in Colares and 40% in Vigia), followed by Pseudoterranova (2% in Colares
and 11% in Vigia), Eustrongylides (10% in Colares and 0% in Vigia) and Hysterothylacium (2% in Colares and 7% in Vigia) in the
species: silver croacker, kumakuma and gilded catfish, in both cities. Mesentery (55%) was the organ with highest level of intense
infestation. A greater proportion of massive infestation was observed in females (57%) than in males (12%). Results of this study
indicate that fish caught in Colares and Vigia could be of high risk for consumer.
Parasitos zoonóticos podem infectar peixes e causar sérios agravos à saúde humana. O objetivo do presente estudo foi estimar
a prevalência e identificar os fatores de risco para doenças parasitárias veiculadas por peixes de água doce comercializados na
ilha de Colares e Vigia, Pará, Brazil. Em fevereiro de 2012, 85 peixes (40 de Colares e 45 de Vigia) foram coletados de forma
aleatória com redes de pesca. Oitenta por cento e 76% dos peixes amostrados estavam parasitados, sendo a corvina (Plagioscion
squamosissimus), piramutaba (Brachyplatystoma filamentosum) e dourada (Brachyplatystoma rousseauxii), as espécies mais
parasitadas.