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| | Black Sea,Turkey-Adiyamanli.org |
 | | The Black Sea is connected to the distant waters of the Atlantic Ocean by the succession of the Bosporus (a strait at the Black Sea's southwestern corner), the Sea of Marmara, the Dardanelles, the Aegean Sea, and the Mediterranean Sea. |
 | | The newly formed Black Sea basin gradually became isolated from the ocean, its salinity was reduced, and it was slowly separated from the Caspian region. |
 | | Despite this anomaly, the Black Sea's uppermost waters supported abundant sturgeon, mackerel, and anchovy until the late 20th century, when the runoff of industrial and municipal wastes into the Danube, Dnieper, and other feeder rivers caused increasing levels of pollution and consequent reductions in fish populations. |
| www.adiyamanli.org /blacksea.html (388 words) |
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