Sustainable Growth of Non-Fed Aquaculture Will Generate Valuable Ecosystem Benefits

Investment in extractive or ‘non-fed’ aquaculture has been proposed as a partial solution for sustainable food provision. An important aspect is the potential for aquaculture-environment interactions to influence the provision of ecosystem services. Here, we quantify and monetise the impacts of bivalve and seaweed farming on a regulating service (removal of nitrogen from nearshore waters) and a supporting service (habitat provision for species with fisheries value).