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	Provedor de dados Zoologia (1) BABT (1) Autor Cruz,André Luis da (1) Donatti,Lucélia (1) Fanta,Edith (1) Kawall,Helena Gonçalves (1) Melo,Gisele Cristiane (1) Rudnicki,Cácia Aparecida Mendes (1) Mais... Palavra-chave Monocrotophos (2) Aggressive behavior (1) Astyanax altiparanae (1) Branchiae (1) Freshwater Fish (1) Morphology (1) Oreochromis niloticus (1) Organophosphate (1) Organophosphorus (1) Sub-lethal concentrations (1) Teleostei (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2009 (1) 2002 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Sub-lethal concentrations of monocrotophos affect aggressive behavior of the fishes Astyanax altiparanae Garutti & Britski (Teleostei, Characidae) and Oreochromis niloticus (Linnaeus) (Teleostei, Cichlidae) Zoologia Cruz,André Luis da. This study investigated the effects of sublethal concentrations of the pesticide monocrotophos (organophosphate) on the agonistic behavior of two fishes species, Astyanax altiparanae Garutti & Britski, 2000 (lambari) and Oreochromis niloticus (Linnaeus, 1758) (Nile tilapia). Sublethal concentrations of the pesticide for the two species were determined and lambari was more resistant than Nile tilapia. The sublethal concentrations were smaller than 400 mgl-1 for lambari and 20 mgl-1 for Nile tilapia. The two species were tested in grouping conditions (triads) and isolation, under monocrotophos concentrations of 200 mgl-1 for lambari and 5 mgl-1 for Nile tilapia. The concentration decreased the aggressiveness in lambari, but in Nile tilapia an... Tipo: Info:eu-repo/semantics/article Palavras-chave: Teleostei; Astyanax altiparanae; Oreochromis niloticus; Aggressive behavior; Organophosphate; Monocrotophos; Sub-lethal concentrations. Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000400018 Gills of juvenile fish piaractus mesopotamicus as histological biomarkers for experimental sub-lethal contamination with the Organophosphorus Azodrin®400 BABT Rudnicki,Cácia Aparecida Mendes; Melo,Gisele Cristiane; Donatti,Lucélia; Kawall,Helena Gonçalves; Fanta,Edith. Piaractus mesopotamicus is a freshwater native fish from rivers of the Paraná-Paraguay Basin and of the Pantanal region and has been used for repopulation programs in Brazil. Juvenile fishes were exposed to the sub-lethal dose of 1.08mg/L of the OP Azodrin®400 containing 0.43µL/L of the active principle monocrotophos for 96 h. A frequent pathology in the gills at all times of exposure was epithelial detachment, from minimal until 24 h of exposure, to intense after 48 h of contamination. Deformed pillar cells in the respiratory lamellae leading to irregular blood spaces and blood congestion, as well as hyperplasia and lamellar fusion were observed. These histopathologies suggested that 48 h after T0 was an important time when a reduction in the capability... Tipo: Info:eu-repo/semantics/article Palavras-chave: Freshwater Fish; Organophosphorus; Monocrotophos; Morphology; Branchiae. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000600015 Registros recuperados: 2 Primeira ... 1 ... Última

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