February 13, 2025

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Farming fish in fresh water is more affordable and sustainable than in the ocean

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Farming fish in fresh water is more affordable and sustainable than in the ocean

Photo: Grieg Seafood operates a salmon farm in Clio Channel, Broughton Archipelago, British Columbia, Canada, in partnership with the Tlowitsis First Nation. David Stanley / FlickrCC BY. Article by Ben Belton, Dave Little and Wenbo Zhang. The Conversation,  Oceans 21 series – March 26, 2021.

A tidal wave of interest is building in farming the seas. It’s part of a global rush to exploit oceanic resources that’s been dubbed the “blue acceleration.”

Optimistic projections say that smart mariculture – fish farming at sea – could increase ocean fish and shellfish production by 21 million to 44 million metric tons by 2050, a 36%-74% jump from current yields. Other estimates suggest that an ocean aquaculture area the size of Lake Michigan might produce the same amount of seafood as all of the world’s wild-caught fisheries combined. […]

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