title: Hepatic steatosis associated with microsporidiosis in teleost fishes from Marajó Island, Brazil.
abstract: A total of 40 specimens of the teleost fish Gobioides grahamae Palmer & Wheeler, 1955 were obtained from the municipality of Salvaterra on Marajó Island in the Brazilian state of Pará. Their livers were removed and processed for light microscopy. Overall, 90% of the specimens presented some degree of steatosis of the liver, which was invariably associated with the presence of Microsporidium sp. The present study confirms the occurrence of steatosis in G. grahamae associated with parasitic infections by Microsporidium. The findings indicate that the condition of otherwise healthy fishes in their natural environment may be affected negatively by parasites.
authors.affiliation: Laboratório de Morfofisiologia e Sanidade Animal, Universidade do Estado do Amapá/UEAP, Macapá, AP, Brasil.
authors.forename: Marcela
authors.initials: M
authors.lastname: Videira
authors.affiliation: Laboratório de Pesquisa Carlos Azevedo, Universidade Federal Rural da Amazônia/UFRA, Belém, PA, Brasil.
authors.forename: Michele
authors.initials: M
authors.lastname: Velasco
authors.affiliation: Laboratório de Pesquisa Edilson Matos, Universidade Federal do Pará/UFPA, Belém, PA, Brasil.
authors.forename: Patrícia
authors.initials: P
authors.lastname: Matos
authors.affiliation: Faculdade de Veterinária, Universidade Federal Fluminense/UFF, Niterói, RJ, Brasil.
authors.forename: Sérgio C de São
authors.initials: SC
authors.lastname: Clemente
authors.affiliation: Laboratório de Patologia Animal, Universidade do Oeste Paulista/UNOESTE, Presidente Prudente, SP, Brasil.
authors.forename: Osimar
authors.initials: O
authors.lastname: Sanches
authors.affiliation: Laboratório de Pesquisa Carlos Azevedo, Universidade Federal Rural da Amazônia/UFRA, Belém, PA, Brasil.
authors.forename: Patrícia
authors.initials: P
authors.lastname: Santos
authors.affiliation: Laboratório de Pesquisa Carlos Azevedo, Universidade Federal Rural da Amazônia/UFRA, Belém, PA, Brasil.
authors.forename: Edilson
authors.initials: E
authors.lastname: Matos
mesh_terms: D000818:Animals; D001938:Brazil; D005234:Fatty Liver / Q000209:etiology / Q000662:veterinary*; D005393:Fish Diseases / Q000382:microbiology*; D016881:Microsporidiosis / Q000150:complications / Q000662:veterinary*; D010473:Perciformes / Q000145:classification / Q000382:microbiology*