A new report from the Centre for Feed Innovation (CFI) confirms that algal oil is no longer a theoretical alternative but a proven, effective substitute for fish oil in aquaculture feed.
This development is critical for the future of sustainable aquaculture. Global growth in the industry relies on a consistent supply of Omega-3 fatty acids, like DHA and EPA, traditionally sourced from limited pelagic fisheries. The reliance on wild fish has led to rising prices and unsustainable pressure on marine stocks.
The Power of Microalgae
CFI’s 2025 State of the Industry report highlights the overwhelming technical viability of algal oil. Remarkably, one tonne of algal oil can replace the DHA obtained from approximately 40 tonnes of wild-caught fish, easing pressure on wild populations. Furthermore, it offers environmental benefits, including lower emissions and fewer contaminants.
Major feed producers, including Skretting, BioMar, and Cargill, are already incorporating algal oil into their formulations. Commercial trials have demonstrated that it can achieve 100 percent replacement of fish oil without any negative impacts on fish growth or feed conversion rates.
The Challenge of Scale
While the technical hurdle is cleared, the primary focus is now on scaling production. Global production of algae-based DHA and EPA is projected to reach 36,000 tonnes by 2030, but the overall fish oil deficit is simultaneously predicted to widen to 100,000 tonnes.
To bridge this gap and stabilize the supply chain, the CFI recommends coordinated action across the value chain to address remaining issues concerning cost, regulation, and feedstock dependence. The conclusion is clear: algal oil is the solution; the industry’s next challenge is to build the capacity to deliver it.
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