Abstract
Expansion of offshore wind power emphasizes conflicts among different stakeholders, emphasizing the potential for multi-use, i.e. the use of area for more than one purpose. Aquaculture of low-trophic species (LT) (non-fed aquaculture) is an attractive way to increase sustainable biomass production. LT species such as bivalves or seaweeds, provides diverse ecosystem services such as the removal of nutrients or water clarity. Culture of LT (LTA) can improve water quality and contributing to the circular bioeconomy. There has been considerable interest in developing multi-use systems, contributing to a range of UN Sustainable Development Goals (SDGs, below) We are developing initiatives for multi-use LTA in the Baltic and North Seas. with offshore wind, combined with cultivation of mussels and seaweeds.