| Summary | Green turtle (Chelonia mydas) is used as a proxy for understanding the impact of MPAs on migratory species |
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| Project | SESMAD |
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| Subtype | Natural Resource Unit |
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| Sector | Marine protected areas |
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| Biotic | Yes |
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| Explanation | |
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| Commons Aggregation | Population |
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| Explanation | Population |
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| Commons Boundaries | Somewhat unclear boundaries (2) |
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| Explanation | Can be found in certain islands in the Raja Ampat area and have distinct nesting and foraging areas although they migrate throughout the entire area and are generally found in tropical and subtropical waters.
The nesting locations in the Raja Ampat area are Wayag-Sayang, Ayau-Asia, Kofiau, Boo Isles, and Southeast Misool. |
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| Commons Indicator | ["Status of highly migratory species"] |
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| Explanation | |
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| Commons Unit Size | Medium (3) |
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| Explanation | Average weight of adult individual 68-190Kg |
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| Environmental Medium | Oceanic |
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| Explanation | Oceanic |
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| Inter Annual Predictability | Moderate (2) |
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| Explanation | Migratory but likely to return to particular nesting beaches every 3-4 years. Long-living. But vulnerable to rapid declines year on year if threatened by human activity. |
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| Intra Annual Predictability | Moderate (2) |
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| Explanation | Availability varies according to season, but these patterns can be predicted. Also population sizes don't fluctuate too much in relation environmental factors. |
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| Commons Renewability | Renewable (1) |
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| Explanation | Renewable, although low survival rates and slow maturing |
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| Productivity | Poorly productive (1) |
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| Explanation | Slow maturing, high infant mortality. |
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| Commons Accessibility | Very accessible (3) |
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| Explanation | Turtles are easy to catch - intentionally or as bycatch. They are predicable with their nesting season when they and their eggs are easy to harvest |
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| Commons Heterogeneity | Moderate (2) |
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| Explanation | Distributed in the sense that they migrate all over the indo-pacific ocean but return to the same nesting beach each year. The nesting locations in the Raja Ampat area are Wayag-Sayang, Ayau-Asia, Kofiau, Boo Isles, and Southeast Misool. |
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| Commons Mobility | High (3) |
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| Explanation | Migratory species |
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| Commons Spatial Extent | 11859 |
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| Explanation | Coded as the extent of the Raja Ampat network, but they are distributed in tropical and sub-tropical waters |
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| Technical Substitute | No |
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| Explanation | |
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