Biofilm early stage development in two nutrient‐rich streams with different urban impacts

• DOI: 10.1002/rra.3290
• Publication Date: 2018-05-28T08:45:57Z
• Authors: J. Cochero; M.M. Nicolosi Gelis; M.B. Sathicq; N. Gómez
• Keywords: Periphyton; Urban stream

Abstract The aim of this study was to describe the colonization biofilm during its early stages under different concentrations nutrients and organic matter, specifically in urban streams influenced by agriculture urbanization. We hypothesized that a stream with higher initial biomass growth would be faster, changes structure community greater. Sterile glass substrates were placed 2 differed nutrient matter concentrations; samples collected their first week measure total biomass, bacterial chlorophyll , activity electron transfer system, composition. Results show development both began within few hours conditions nutrients; better water quality, dynamics consisted increments linked an increase algal biomass. In concentrations, slower simultaneous bacteria algae, consistent lower system activity. Therefore, process addition those characteristics fully developed could have potential applications monitoring streams.