Aquatic biofilms exposed to light are dominated by phototrophic micro-organisms. Cyanobacteria and unicellular algae generate energy, reduce carbon dioxide and provide organic substrates as well as oxygen which drive processes in the overall biofilm community. Practical implications include biofouling but also bioremediation. Production of extracellular polymeric substances (EPS) may enhance the stabilisation of sediments and soils.
(EU project PHOBIA – The Netherlands, Denmark, Italy, Portugal, Germany)