LYCOS RETRIEVER 
Black Sea: Waters
built 655 days ago
An unusual feature of the Black Sea is that oxygen is dissolved only in the upper levels of its waters, which alone can support a rich sea life as a result. Below a depth of 230-330 feet (70-100 m) at the centre and 330-500 feet (100-150 m) near the sea's margins, there is no oxygen because the sea is permeated by a high concentration of dissolved hydrogen sulfide, forming a saturated, "dead" zone inhabitable only by specially adapted bacteria. 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.
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This cozy holiday village is situated 40 km south of city of Burgas in a beautiful bay on Black Sea. You may walk hundreds of meters into the sea and still touch the sea bottom with your feet. The slope is gentle and free of slopes and the water is unpolluted and warm. The architecture of Duni is the first eye -catching feature. Lodgings in the complex include only suites (in total 2000 beds), divided in three zones - Zelenika, Marina and Pelikan and combine the convenience of modern life with the aura of old Bulgarian Revival period architecture. Duni has excellent sport facilities and experienced coaches that will satisfy every water sport fan.
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Black Sea is one of the youngest seas on the Earth, its used to be a big fresh water lake some 8000 years ago. The name is probably derived from the color of its deep waters.
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In the early 1980s, an unknown ship dumped tons of ballast water in the Black Sea. That water, picked up in a distant ocean, contained a relative of the jellyfish that showed not a trace of homesickness in its new environs.
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The best time to fish for black sea bass is from May through summer, when they are closest to shore. Any underwater structures, such as those associated with wrecks, jetties, and piers, will attract this species. Although they can be found from near shore to depths of about 120 feet, the largest males tend to be found in deeper waters within this depth range.
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Though the structure does not lie within the Black Sea’s anoxic “dead zone,” the site is well preserved due to its proximity to those deep, oxygen-free waters. Such proximity might have prevented wood-consuming organisms from devouring the site as they would likely have done in shallower waters.
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