Ocean Health Assessment and Sustainable Management

Ocean health assessment integrates ecological, social and economic indicators to evaluate the condition of marine ecosystems and guide sustainable management. By employing composite frameworks that combine diverse datasets—ranging from biodiversity surveys and fishery yields to carbon sequestration and coastal livelihoods—scientists can quantify baseline status, detect trends and identify pressures. These assessments underpin ecosystem-based management and enable the design of marine protected areas, adaptive governance and restoration initiatives. Sustainable management relies on clear reference points, stakeholder engagement and iterative monitoring to balance conservation objectives with human well-being. Recent advances include the refinement of composite indicators, integration of remote sensing and in situ data, and co-development of local indicators to ensure contextual relevance. Globally, tens of millions depend on marine resources for food security, livelihoods and climate regulation, making robust health assessments critical for policy treaties, the Sustainable Development Goals and regional planning. Practical applications span the designation of protected corridors, fishery quotas, pollution reduction strategies and community-led stewardship. Effective assessment and management demand cross-disciplinary collaboration, transparent methods and an adaptive, multi-actor framework to safeguard ocean ecosystems and the services they provide for current and future generations.

Research from Nature Portfolio

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Ocean Health Assessment and Sustainable Management publication trend

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

Technical terms

Ocean Health Index (OHI): A composite indicator framework that combines ecological, social and economic sub-indicators to quantify the overall condition of marine ecosystems.

Composite indicator: An aggregated measure that synthesises multiple metrics into a single score, facilitating comparison and monitoring of complex environmental systems.

Ecosystem-based management: An integrated approach that considers ecological interactions and human activities to maintain ecosystem services and biodiversity.

Coastal Barometer: A participatory assessment tool co-designed with local communities to monitor progress towards context-specific sustainability goals.

References

1. Promoting the restoration of China’s marine ecology and the governance of marine disaster prevention and reduction. Environmental Sciences Europe (2024).
2. Co-creating coastal sustainability goals and indicators. Sustainability Science (2024).
3. Assessment of coastal sustainable development along the maritime silk road using an integrated natural-economic-social (NES) ecosystem. Heliyon (2023).