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Subject
- Oceans9
- Coasts7
- Environment7
- Boundaries6
- Biology and Ecology4
- Fisheries3
- Utilities and Communication3
- Drainage2
- Economy2
- Fishing2
- Location2
- Marine biodiversity conservation2
- Marine pollution2
- Marine resources conservation2
- Remote sensing2
- Sewage2
- Trawls and trawling2
- Vernal pool ecology2
- Vernal pool plants2
- Vernal pools2