Publications

spatial distribution and interaction of four species of the catfish genus hypostomus lacépède with bottom of rio são francisco, canindé do são francisco, sergipe, brazil (pisces, loricariidae, hypostominae).	the large catfishes, genus hypostomus lacépède, are common species in almost all freshwater environments of south america. the behavior of specimens from the species hypostomus alatus, hypostomus francisci, hypostomus cf. wuchereri, and hypostomus sp., from the region downstream from the xingó hydroelectric power dam, located in canindé do são francisco on the rio são francisco, were observed. morphological characters collected from preserved specimens were also studied in the laboratory, in ord ...	2004	15619997
assessment of trace metal levels in catfish (cathorops spixii) from sal river estuary, aracaju, state of sergipe, northeastern brazil.	the concentrations of cadmium, copper, nickel, zinc, and lead were determined in the catfish (cathorops spixii) from the sal river estuary, brazil, to evaluate the potential role of domestic and industrial effluents released without treatment on the quality of the estuarine environment with consequences to fish resources. muscle, liver, and kidney samples were analyzed for trace metal composition by flame atomic absorption spectrophotometry. the mean concentration (microg/g wet weight) of trace ...	2010	21214023
structure of the parasite infracommunity of sciades proops from the japaratuba river estuary, sergipe, brazil.	the catfish species sciades proops inhabits muddy estuaries and shallow brackish lagoons, as well as freshwater. for these reasons, it is believed that this species may act as an intermediate, definitive and paratenic host in the life cycle of many parasites. from november 2010 to november 2011 and from august 2012 to july 2013, a total of 126 specimens of sciades proops from the estuarine region of the japaratuba river in the state of sergipe, brazil, were examined for parasites, of which 84.13 ...	2015	26675906