* (1)
.River basins (2)
| Baltic Sea |
| Barentz Sea East |
| Barentz Sea West |
| Black Sea |
| Caspian Sea |
| Celtic Sea and Channels |
| Dead Sea |
| Eastern Mediterranean Sea |
| North Sea |
| Northern Atlantic Ocean |
| Norwegian Sea |
| Orumiyeh Salt Lake |
| Persian Gulf |
| Prespa Lake |
| Southern Atlantic Ocean |
| Trasimeno Lake |
| Tuz Salt Lake |
| Van Lake |
| Western Mediterranean Sea |
| White Sea |
| Others |
* (4)
.River basins (5)
|
| Baltic Sea |
|
| Barentz Sea East |
|
| Barentz Sea West |
|
| Black Sea |
|
| Caspian Sea |
|
| Celtic Sea and Channels |
|
| Dead Sea |
|
| Eastern Mediterranean Sea |
|
| North Sea |
|
| Northern Atlantic Ocean |
|
| Norwegian Sea |
|
| Orumiyeh Salt Lake |
|
| Persian Gulf |
|
| Prespa Lake |
|
| Southern Atlantic Ocean |
|
| Trasimeno Lake |
|
| Tuz Salt Lake |
|
| Van Lake |
|
| Western Mediterranean Sea |
|
| White Sea |
|
| Others |
* (7)
.River basins (8)
|
| Baltic Sea |
|
| Barentz Sea East |
|
| Barentz Sea West |
|
| Black Sea |
|
| Caspian Sea |
|
| Celtic Sea and Channels |
|
| Dead Sea |
|
| Eastern Mediterranean Sea |
|
| North Sea |
|
| Northern Atlantic Ocean |
|
| Norwegian Sea |
|
| Orumiyeh Salt Lake |
|
| Persian Gulf |
|
| Prespa Lake |
|
| Southern Atlantic Ocean |
|
| Trasimeno Lake |
|
| Tuz Salt Lake |
|
| Van Lake |
|
| Western Mediterranean Sea |
|
| White Sea |
|
| Others |
.River basins (10)
|
| Baltic Sea |
|
| Barentz Sea East |
|
| Barentz Sea West |
|
| Black Sea |
|
| Caspian Sea |
|
| Celtic Sea and Channels |
|
| Dead Sea |
|
| Eastern Mediterranean Sea |
|
| North Sea |
|
| Northern Atlantic Ocean |
|
| Norwegian Sea |
|
| Orumiyeh Salt Lake |
|
| Persian Gulf |
|
| Prespa Lake |
|
| Southern Atlantic Ocean |
|
| Trasimeno Lake |
|
| Tuz Salt Lake |
|
| Van Lake |
|
| Western Mediterranean Sea |
|
| White Sea |
|
| Others |
.River basins (12)
|
| Baltic Sea |
|
| Barentz Sea East |
|
| Barentz Sea West |
|
| Black Sea |
|
| Caspian Sea |
|
| Celtic Sea and Channels |
|
| Dead Sea |
|
| Eastern Mediterranean Sea |
|
| North Sea |
|
| Northern Atlantic Ocean |
|
| Norwegian Sea |
|
| Orumiyeh Salt Lake |
|
| Persian Gulf |
|
| Prespa Lake |
|
| Southern Atlantic Ocean |
|
| Trasimeno Lake |
|
| Tuz Salt Lake |
|
| Van Lake |
|
| Western Mediterranean Sea |
|
| White Sea |
|
| Others |
.River basins (14)
| Baltic Sea |
| Barentz Sea East |
| Barentz Sea West |
| Black Sea |
| Caspian Sea |
| Celtic Sea and Channels |
| Dead Sea |
| Eastern Mediterranean Sea |
| North Sea |
| Northern Atlantic Ocean |
| Norwegian Sea |
| Orumiyeh Salt Lake |
| Persian Gulf |
| Prespa Lake |
| Southern Atlantic Ocean |
| Trasimeno Lake |
| Tuz Salt Lake |
| Van Lake |
| Western Mediterranean Sea |
| White Sea |
| Others |
|
