Today, about 92 percent of the raw materials used in Norwegian aquafeeds are currently imported. Shellfish can be a sustainable feed supplement and valuable local marine resource, but are regularly contaminated with algal toxins. The ShellFeed-project aim at providing knowledge about the toxicity of the algal toxins (OA/DTXs and STXs) in salmon after dietary exposure, and potential carry-over of these toxins or their metabolites into fish fillets or by-products.