| continent country capital population sq km |
Europe Bulgaria Sofia 7.621.337 110,910 |
| record potential | water |
| Russian Sturgeon Stellate Sturgeon Black Sea Salmon Asp Barbel/Dnyepr Barbel Tench Danube Bleak Wels Volga Zander |
Black Sea Black Sea Black Sea Danube River system Danube River fish-hatcheries Danube River Danube River Danube River |
| background |