title: Parasitological assessment in the hybrid surubim (Pseudoplatystoma reticulatum x P. corruscans), with uncommon occurrence of Monogenea parasites.
abstract: This study evaluated the parasite fauna of farmed hybrid surubim (Pseudoplatystoma reticulatum x P. corruscans) and the host-parasite-environment relationship in two fish farms located in Mato Grosso do Sul, Central Brazil, South America. A total of 120 hybrids from two different farms, 60 in each season (30 in the hot and 30 in cold season) were examined during a year. Water quality was weekly measured to evaluate the interaction among environmental conditions and parasitism. Histopathology was used to observe the effects of the parasites and environment on the fish gills. The ciliate protozoan Ichthyophthirius multifiliis and the monogeneans (Ameloblastella sp., Amphocleithrium paraguayensis, Vancleaveus ciccinus, V. fungulus and V. janacauensis) were the most prevalent parasites detected in both seasons in both farms, with prevalence above 80%. It was stated that parasites did not cause important damage in the health status of the hybrid surubim. These results might be related to general good management practices and environmental quality implemented by the fish farmers. The presence of uncommon monogenean parasites to this hybrid compared to their parents causing an environmental and ecological concern is here discussed.
authors.affiliation: Pós-graduação em Aquicultura, Universidade Nilton Lins/INPA, Centro Universitário Nilton Lins, Manaus AM , Brasil, Pós-graduação em Aquicultura, Universidade Nilton Lins/INPA, Manaus, AM, Brasil.|Departamento de Aquicultura, Universidade Federal de Santa Catarina, Universidade Federal de Santa Catarina, Florianópolis SC , Brasil, AQUOS - Laboratório de Sanidade de Organismos Aquáticos, Departamento de Aquicultura, Universidade Federal de Santa Catarina - UFSC, Florianópolis, SC, Brasil.
authors.forename: Gabriela Tomas
authors.initials: GT
authors.lastname: Jerônimo
authors.affiliation: Aquivet - Saúde Aquática, São José do Rio Preto SP , Brasil, Aquivet - Saúde Aquática, São José do Rio Preto, SP, Brasil.
authors.forename: Santiago Benites de
authors.initials: SB
authors.lastname: Pádua
authors.affiliation: Programa de Pós-graduação em Recursos Naturais, Universidade Estadual de Mato Grosso do Sul, Universidade Estadual de Mato Grosso do Sul, Dourados MS , Brasil, Programa de Pós-graduação em Recursos Naturais, Universidade Estadual de Mato Grosso do Sul - UEMS, Dourados, MS, Brasil.
authors.forename: Arlene Sobrinho
authors.initials: AS
authors.lastname: Ventura
authors.affiliation: Departamento de Aquicultura, Universidade Federal de Santa Catarina, Universidade Federal de Santa Catarina, Florianópolis SC , Brasil, AQUOS - Laboratório de Sanidade de Organismos Aquáticos, Departamento de Aquicultura, Universidade Federal de Santa Catarina - UFSC, Florianópolis, SC, Brasil.
authors.forename: Eduardo Luis Tavares
authors.initials: EL
authors.lastname: Gonçalves
authors.affiliation: Embrapa Meio Ambiente, Embrapa Meio Ambiente, Jaguariúna SP , Brasil, Embrapa Meio Ambiente, Empresa Brasileira de Pesquisa Agropecuária - EMBRAPA, Jaguariúna, SP, Brasil.
authors.forename: Márcia Mayumi
authors.initials: MM
authors.lastname: Ishikawa
authors.affiliation: Departamento de Aquicultura, Universidade Federal de Santa Catarina, Universidade Federal de Santa Catarina, Florianópolis SC , Brasil, AQUOS - Laboratório de Sanidade de Organismos Aquáticos, Departamento de Aquicultura, Universidade Federal de Santa Catarina - UFSC, Florianópolis, SC, Brasil.
authors.forename: Maurício Laterça
authors.initials: ML
authors.lastname: Martins
mesh_terms: D000818:Animals; D001938:Brazil; D002397:Catfishes / Q000469:parasitology*; D002678:Chimera / Q000469:parasitology*; D005393:Fish Diseases / Q000469:parasitology*; D014200:Trematoda; D014201:Trematode Infections / Q000469:parasitology / Q000662:veterinary*