Top 10 Omega 3 / 6 containing fish List Omega 3/6 Per 100g Sprat 2. 4 Salmon 2. 3 Sardine/pilchard 2. 2 Mackerel 2. 0 Herring 1. 6 Tuna(fresh or frozen) 1. 6 Anchovy 1. 4 Crab 1. 2 Rainbow trout 1. 2 Shrimp (boiled) 0. 8 ^^Good 2 know huh.