Black Sea Biogeographic Region
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| Black Sea Biogeographic Region | |
|---|---|
 Rize, Northern Turkey | |
 | |
| Ecology | |
| Realm | Palearctic |
| Geography | |
| Country | Mostly Turkey, Romania, Bulgaria, and Georgia |
| Rivers | Kizilirmak, Sakarya |
The Black Sea Biogeographic Region is a biogeographic region of land bordering the west and south of the Black Sea, as defined by the European Environment Agency .
The Black Sea Region is a coastal strip of land 20–60 kilometres (12–37 mi) wide that runs along the coasts of Romania, Bulgaria, and a broader coastal strip in northern Turkey and Georgia. The coastline has rocky bays and sea cliffs, but is dominated by long stretches of low sand dunes and beaches sloping into the Black Sea.[1]
Environment
The sea has a moderating effect on the climate, so temperatures do not fall much below 0 °C (32 °F) in winter, and are not as high in the summer as in area further inland.[2] The Kaliakra cliffs in the north of Bulgaria are rich in flora, including many species in common with the neighboring Steppic and Mediterranean Regions. The western Black Sea Region is the Via Pontica, Europe's second largest bird migration route.[1] The migrating birds use the coastal lakes, marshes and lagoons behind the shoreline, and some spend the winter in these wetlands. The Danube Delta is the best known of the wetlands.[2]
In Bulgaria and Romania the region is threatened by development of agriculture, industry, urbanization and tourism.[2] The Black Sea itself, a very deep inland sea, is poor in oxygen and supports very little marine life in the deeper regions. However, it had a productive fishery until the 1960s, when stocks crashed in part because of over-fishing and in part from pollution and invasion by exotic species.[3]