The Feed Grade Marine Fish Oil market is principally divided by type, which determines both functional performance and price elasticity. Two dominant types are refined fish oil, processed to remove impurities, free‑fatty acids, and off‑flavors, and crude fish oil, which retains a broader spectrum of lipids but requires additional handling. Refined oil commands a premium due to its higher oxidative stability, making it suitable for high‑value aquaculture feeds, while crude oil serves cost‑sensitive livestock and pet‑food applications where processing can be integrated downstream. A secondary classification hinges on fatty‑acid profile—high‑EPA, high‑DHA, or balanced EPA/DHA—driving formulation choices across species. These type distinctions collectively shape the market’s revenue distribution, as refined, high‑EPA/DHA oils contribute disproportionately to total value despite lower volume, whereas crude, bulk‑grade oils underpin the bulk of unit sales. Understanding this taxonomy is essential for forecasting demand shifts within the Feed Grade Marine Fish Oil segmentation.