My thesis focused on the potential uses of freshwater and marine macroalgae as bioremediation agents. The first part of the thesis focused on sampling and testing of production and competition of local freshwater species and their ability to remove nutrients from wastewater. The second part focussed on the link between nutrient discharges and drift algal production and the environmental costs and benefits of algal drift harvesting for nutrient management. Juanma returned to southern Spain to work as a post-doc at the University of Alicante. He recently won a prestigious 3-year Marie Curie post-doc fellowship to research the coastal ecology of fjord fucoid algae at the University of Bergen, Norway.