Are farmed fish a sustainable choice? Many still depend on wild-caught fish for feed – algae grown on Scottish whisky industry waste could change that.
By Denis Loktev
Published on
03/08/2026 - 7:02 GMT+2
Aquaculture is now the world's largest source of fish for human consumption, outpacing wild catch globally.
But the industry has a hidden problem: farmed fish, especially salmon, are carnivores that need omega-3 fatty acids – and almost all of that omega-3 comes from fish oil, which itself is extracted from wild-caught fish.
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A Scottish enterprise is innovatively growing microalgae by utilizing waste from whisky production, presenting a sustainable…
