Irineu Bianchini Júnior

• Abstract

  The macrophytes are important resources for the grazing and detritus chains in aquatic ecosystems playing a key role in nutrient cycling and fluxes of these environments. The degradation process is mediated by microbial communities which produces exoenzymes capable of catalyzing the digestion of organic matter. Whereas the rates of mass loss of the aquatic macrophytes detritus are influen…

  Enzymatic activity and bacterial diversity on degradation of aquatic macrophytes, AP.BTA.R

• Abstract

  Considering the macrophytes represent an important part of the biomass of aquatic environments and that their decomposition is an important source of detritus. The aim of this project is to characterize the kinetics and molecular variations in humic substances from the decomposition process of species Salvinia molesta, Egeria najas, Eichhornia azurea and Scirpus cubensis of aquatic macrop…

  Kinetics and molecular variations of humic substances formed from the decomposition of aquatic macrophytes, AP.R
• Evaluation of aquatic macrophytes growth under different concentrations of cadmium, lead, nickel and zinc and bioassay potential as a tool for reducing the concentration of metals in the wastewater, AP.R

(Only some records are available in English at this moment)

• Abstract

  Lead is a toxic element that has been used by man since ancient times and is still used today in several industrial processes such as the production of batteries, welding, and pigments, among others. If its residues are not disposed of correctly, they cause serious environmental impacts and can contaminate the atmosphere, soil and aquatic environments. Its toxic effect is due to interacti…

  Effect of lead in the aerobic decomposition of Myriophyllum aquaticum (Vell.) Verdec, BP.IC

• Abstract

  Eutrophication is the increase of nutrients in aquatic ecosystems, this event induces changes in primary production and, consequently, may increased biomass of aquatic macrophytes. Whereas the macrophytes represent an essential compartment onnutrientcycling in aquatic environments and their decomposition is an important source of humic substances, the aim of this study is to investigate t…

  Effect of trophic status in the formation of humic substances from the decomposition of aquatic macrophytes., BP.MS

• Abstract

  This research reports the effects of nutrient concentration (N and P) and carbon in the detritus and in the environment on the anaerobic decomposition of refractory organic matter from two macrophyte species (1 emerged and 1 free-floating). To assess the aims the initial nutrient concentrations will be analyzed in the detritus and in the environment. The refractory detritus will be obtain…

  ANAEROBIC DECOMPOSITION OF REFRACTORY ORGANIC MATTER IN DIFFERENT TROPHIC CONDITIONS, BP.PD

(Only some records are available in English at this moment)

• Abstract

  Considering the macrophytes represent an important part of the biomass of aquatic environments and their decomposition is an important source of detritus that can determine characteristics of this environment. The aim of this project is compare the kinect and chemical variation of fulvic and humic acids formed from Oxycaryum cubense decomposition. Samples of plant and water were previousl…

  Kinetics and molecular changes of fulvic and humic acids formed from decomposition of Oxycaryum cubense, BE.EP.DR