Growth and nutrient uptake by Palmaria palmata integrated with Atlantic halibut in a land-based aquaculture system

TLDR: This work has shown that integration of seaweed and land-based marine finfish culture can convert these nu-trients to a usable product and may pose a risk of local eutrophication.

Abstract: Many aquaculture businesses are intent not only on maximizing productivity and profitability, but also ac-complishing this using environmentally responsible practices. Efficient use of energy (e.g., pumping of water) and natural resources (surrounding environment, ambi-ent water supply, and waste streams) are key elements in this approach. Land-based recirculating aquaculture systems facilitate greater control over culture water and waste discharge than flow-through systems (Blancheton et al. 2009). Though the surrounding environment may be enhanced by moderate volumes of aquaculture discharge (White et al. 2011), the trend toward larger land-based fa -cilities (e.g., 1,000 metric tons finfish production per year) and the associated effluent waste may pose a risk of local eutrophication. Alternatively, integration of seaweed and land-based marine finfish culture can convert these nu-trients to a usable product. Previous investigations into land-based seaweed integration have included