Through partnerships with Blue Ocean Institute and Monterey Bay Aquarium, Whole Foods Market says it's the first national grocer to provide a comprehensive sustainability rating system for wild-caught seafood.

Blue Ocean and Monterey Bay Aquarium are known for the strength of their science-based seafood programs, Whole Foods said, adding both organizations evaluate species and the fishing fleets that catch them, based on life history, abundance, habitat impacts, fishery management practices and bycatch.

Green or “best choice” ratings indicate a species is relatively abundant and caught in environmentally-friendly ways; yellow or “good alternative” means some concerns exist with the species’ status or catch methods; and red or “avoid” means that for now, the species is suffering from overfishing, or that current fishing methods harm other marine life or habitats.

The