Ocean Law and Governance

Ocean law and governance encompass the international legal frameworks, institutional arrangements and policy processes designed to regulate human activities at sea and protect marine ecosystems. At its core lies the United Nations Convention on the Law of the Sea (UNCLOS), which establishes zones of national jurisdiction—territorial sea, exclusive economic zone (EEZ) and continental shelf—and sets out principles governing navigation, resource exploitation and environmental protection. Beyond national zones, the high seas remain a global commons, where freedoms of navigation and fishing coexist with emerging conservation imperatives. Gaps in UNCLOS have been addressed through subsequent agreements, notably the Biodiversity Beyond National Jurisdiction (BBNJ) treaty, which establishes mechanisms for marine genetic resource sharing, area-based management tools, environmental impact assessments and capacity-building measures. Regional seas conventions and specialised bodies such as regional fisheries management organisations and the International Seabed Authority complement global law by translating high-level norms into operational rules. Across these layers, practices such as marine spatial planning, marine protected areas and the precautionary approach seek to integrate ecological connectivity, climate resilience and equitable access. Effective governance depends on transparent decision-making, stakeholder participation and adaptive management to reconcile economic interests—fisheries, shipping, offshore energy and emerging blue-economy sectors—with the long-term health of ocean systems.

Research from Nature Portfolio

Recent work has defined thirteen interacting principles for transformative ocean governance that connect ecological, social and legal dimensions. Developed through a rigorous consensus process, these principles emphasise inclusivity, transparency and the management of tensions between economic growth models and environmental equity. They offer a strategic guide for partnerships and policy reforms in line with global sustainable-development and ocean-science agendas.

Complementing principles work, transition-theory has been applied to ocean governance, illustrating how niche innovations—ranging from community-driven stewardship to market-based incentives—can be embedded across sectors to shift existing systems towards purposeful ocean stewardship. This framework provides a clear pathway for integrating novel practices within fisheries, energy and coastal management to support sustainable change.

Analyses of ocean financing reveal a persistent investment gap for sustainable ocean management. Key barriers include misaligned incentives, lack of impact metrics and perceptions of investment risk. Recommendations include the creation of blended-finance vehicles, standardisation of sustainability criteria and strengthened public-private collaboration to mobilise capital for marine science, conservation and resilient blue-economy ventures.

Ocean Law and Governance publication trend

The graph below shows the total number of articles in ocean law and governance across all publications each year (not limited to Nature Index journals).

Technical terms

United Nations Convention on the Law of the Sea (UNCLOS): A comprehensive treaty defining maritime zones, state rights and obligations concerning navigation, resource use and marine environmental protection.

Exclusive Economic Zone (EEZ): A maritime zone extending up to 200 nautical miles from a state’s baseline where that state has sovereign rights to explore, exploit and manage natural resources.

Biodiversity Beyond National Jurisdiction (BBNJ) Agreement: An international treaty supplementing UNCLOS that creates rules for conserving and sustainably using marine biodiversity in ocean areas beyond national jurisdiction.

Area-Based Management Tools (ABMTs): Spatially defined measures—such as marine protected areas and marine spatial planning—used to regulate human activities and safeguard marine ecosystems.

Environmental Impact Assessment (EIA): A systematic process for evaluating the potential environmental consequences of proposed activities in marine areas before they are authorised.

References

1. Principles for transformative ocean governance. Nature Sustainability (2023).
2. A transition to sustainable ocean governance. Nature Communications (2020).
3. Financing a sustainable ocean economy. Nature Communications (2021).
4. First to finish, what comes next? Putting Capacity Building and the Transfer of Marine Technology under the BBNJ Agreement into practice. npj Ocean Sustainability (2024).
5. Decisive conservation action in areas beyond national jurisdiction is urgently required for seabird recovery in the face of global change. Conservation Letters (2023).
6. The new UN high seas marine biodiversity Agreement may also facilitate climate action: a cautiously optimistic view. npj Climate Action (2024).