MARCOP aims to ensure that marine conservation in the Western Indian Ocean (WIO) is strategic, evidence-based, and results-driven. Using a Theory of Change (TOC) approach, we combine scientific research, policy integration, stakeholder engagement, and capacity building to achieve long-lasting conservation outcomes. Our efforts focus on strengthening governance, enhancing biodiversity protection, and promoting social equity, ensuring a sustainable future for the region’s marine ecosystems and the communities that depend on them. Link to ToC.