| effects of flooding regime on the feeding activity and body condition of piscivorous fish in the upper paraná river floodplain. | flood pulses affect floodplain enrichment via the incorporation of nutrients and terrestrial biomass. as a result, they positively affect the body condition of aquatic organisms. this paper evaluates whether the absence of floods (resulting from dam control) affects the feeding activity and body condition of piscivorous fish. in addition, whether piscivores respond similarly to alterations in the flooding regime was assessed. five piscivorous species were selected (acestrorhynchus lacustris, hop ... | 2009 | 19738956 |
| spatial and temporal distribution of "curvina" larvae (plagioscion squamosissimus heckel, 1840) and its relationship to some environmental variables in the upper paraná river floodplain, brazil. | with the objective of studying the spatial and temporal distribution of "curvina" plagioscion squamosissimus larvae and verifying respective spawning sites, monthly sampling was carried out from march 1993 to february 1994 on the upper paraná river floodplain. using a conical-cylindrical plankton net (0.5 mm mesh), samples were taken from the surface of the water bodies, and in the marginal vegetation a strainer and a dragnet ("picaré") were used. water samples were collected for environmental v ... | 2003 | 14758697 |