Index By Country
The Ocean Health Index evaluates the health of the oceans adjacent to 171 countries and territories. The standard reporting unit extends from a country’s shoreline to the edge of its Exclusive Economic Zone (EEZ) (200 nautical miles offshore), i.e. the area over which it has exclusive regulatory control over economic and resource management. A score was calculated for every coastal country according to the Index’s ten public goals for a healthy coupled human-ocean system; each country’s overall score is the average of its 10 goal scores.
Overall and Goal Scores by EEZ
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- Overall Index Score
- Food Provision
- Artisanal Fishing Opportunities
- Natural Products
- Carbon Storage
- Coastal Protection
- Coastal Livelihoods & Economies
- Tourism & Recreation
- Sense of Place
- Clean Waters
- Biodiversity
The OHI results are shown on the exclusive economic zone (EEZ) of each coastal country, an area that extends 200 nautical miles (370 KM) offshore from the country’s coast. For countries with multiple and separate coastlines, EEZs were grouped based on country, latitude, habitation, and ocean basin.
When a goal is not relevant to a specific country, no value (N/A) is shown and that goal is not included in calculation of the country’s overall Index score.
Results were not calculated for the high seas (international waters)
or for Antarctica.
Due to standardized usage in interactive mapping, the Web Mercator projection has been selected to display Index data. The advantage of Mercator Projection is that it is the only projection to show true compass direction, so a line drawn Southeast on the map will also be Southeast on the earth’s surface. The disadvantage is that countries and areas nearer to the poles appear disproportionately large e.g.Northern Hemisphere countries in Europe and North America appear larger than they actually are.
The political and geographic designations shown on this map do not imply the expression of any opinion on behalf of the Ocean Health Index concerning the legal status or delineation of the frontiers of any country, territory or area.
Country Ranking
Overall scores and individual goal scores are directly comparable between all countries. All scores range from 0 to 100.
Individual goal scores varied within and among countries.
- Global Ocean Health Index
- Food Provision
- Artisanal Fishing Opportunities
- Natural Products
- Carbon Storage
- Coastal Protection
- Coastal Livelihoods & Economies
- Tourism & Recreation
- Sense of Place
- Clean Waters
- Biodiversity