Dissertação

Fauna de metazoários parasitos de Pellona castelnaeana Valenciennes, 1847 (Clupeiformes: Pristigasteridae) da Amazônia Brasileira

Were collected and examined 63 specimens of Pellona castelnaeana captured in the Catalão lakes complex. The mean fish length was 28.5 cm ± 6.4 and the mean weight was 328.3 g ± 208.5. Were collected and identified 477 specimens of parasites. 14 Monogenoidea; 01 Digenea, 39 Acanthocephala, 382 Nem...

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Autor principal: Souza, Amanda Karen Silva de
Grau: Dissertação
Idioma: por
Publicado em: Instituto Nacional de Pesquisas da Amazônia - INPA 2020
Assuntos:
peixes parasitas
Monogenoidea
Pellona Castelnaeana Valenciennes
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/11378
http://lattes.cnpq.br/3000794426856365
Resumo:
Were collected and examined 63 specimens of Pellona castelnaeana captured in the Catalão lakes complex. The mean fish length was 28.5 cm ± 6.4 and the mean weight was 328.3 g ± 208.5. Were collected and identified 477 specimens of parasites. 14 Monogenoidea; 01 Digenea, 39 Acanthocephala, 382 Nematoda, 43 Copepod, 01 Isopoda and 01 Argulus and 01 Dolops. The Monogenoidea Mazocraeoides makrodemas parasitized the gills filaments, the Digenea Austrodiplostomum compactum the eye; the Acanthocephala Neoechinorhynchus (Neoechinorhynchus) sp. n. the intestine; the Nematoda Anisakis sp. the surface of the liver, stomach and intestine; the Copepoda Acusicola pellonidis the gills filaments; the Branchiura Argulus chicomendesi and Dolops bidentata the body surface; and Isopoda, Braga patagonica the gill cavity. Anisakis sp. was the species with the highest prevalence (38%) followed by N. (N.) sp. n. (20.63%). All others species occurred with low prevalence. Eighty percent of the parasite community of P. castelnaeana was dominated by Anisakis sp., followed by Neoechinorhynchus (Neoechinorhynchus) sp. (9.6%). The fauna of species parasites of P. castelnaeana was formed by a secondary species and seven satellites species. Only one parasite species presented secondary distribution, Anisakis sp. with prevalence of 38%. The species of Monogenoidea, Acanthocephala, Copepoda and Nematoda presented aggregate distribution. Anisakis sp. presented a negative correlation between total length and abundance. Only for Anisakis sp. "p" was significant (p ≤ 0.05).

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