Camargo, AFMEsteves, F. A.2014-05-202014-05-201996-01-01Archiv Fur Hydrobiologie. Stuttgart: E Schweizerbart'sche Verlags, v. 135, n. 3, p. 423-432, 1996.0003-9136http://hdl.handle.net/11449/35567The influence of water level variation (flood pulse) on the biomass and chemical composition of the aquatic macrophyte Eichhornia azurea, was investigated in a tropical oxbow lake of the Rio Mogi-Guacu, State of São Paulo, Brazil. The flood pulse causes an increase in total nitrogen content from 0.67 to 1.35 mg/L and total phosphorus content from 10.5 to 101.0 mu g/L of the water. This fertilization, associated with other factors, determines a typical seasonal variation in the biomass and chemical composition of the macrophyte.423-432engArtigoWOS:A1996TT86100008Acesso restrito