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Abstract

Fish are a virtually unique, rich source of omega-3 long-chain polyunsaturated fatty acids (ω3 LC-PUFA) in the human diet. This article describes the origins of ω3 LC-PUFA in fish and the increasingly important role of aquaculture in the provision of fish for human consumption. It also highlights the major issues currently facing aquaculture, focusing on sustainability, driven by the urgent need to replace traditional fish oil and meal in formulated diets, and safety, driven by the requirement to reduce feed-derived contaminants.