Sustainable Aquaculture

As wild fish stocks are depleted and the world’s growing population continues to demand seafood, the aquaculture industry is booming. But like all intensive farming it can have a devastating impact, in the case of aquaculture on marine habitats and wild fish stocks. Mangrove forests are destroyed and replaced by shrimp farms; salmon farming pollutes waterways with antibiotics and pesticides; escaped fish that are genetically weak infiltrate wild populations. Alongside this, millions of tons of wild fish are caught and processed into fishmeal to feed the farms.  

Blue Marine is determined to influence the future of aquaculture by developing sustainable practices and driving innovation in the field. Alternative forms of protein – algae- and insect-based – are being trialled to reduce pressure on wild fish stocks. Insect farms fueled by human waste not only produce protein but also natural fertilizer to grow plants.  

A campaign is underway to regulate the UK wrasse fishery: wild populations of these ‘cleaner fish’ are collapsing as wrasse are caught and sold to salmon farms to remove sea-lice, a result of overcrowded sea cages. Blue Marine also promotes sustainable shellfish restoration projects and aquaculture of species such and oysters and mussels. These filter-feeders create healthy ecosystems that support a diversity of marine life and are more resilient to climate change.