Seafood sustainability is not possible without well-developed harvest strategies, which prevent overfishing and allow stock rebuilding. Precautionary harvest strategies help to maintain tuna populations at target levels, support human food security, and keep fisheries viable for the long term. RFMOs are responsible for establishing and implementing harvest strategies, which in turn are required for Marine Stewardship Council fishery certification. But other stakeholders — scientists, government agencies, and NGOs like ISSF — contribute valuable data and perspectives.