With a clean fresh water surface, swimming in the Black Sea is possible; though offer a different experience from other water bodies. With its strange features, including the high level of minerals and salt, normally the objects tend to float on the water.
The Black Sea is a sea in Eurasia between Europe, Caucasus, and Anatolia. 90% of the sea has no oxygen. The water is saltwater but less salty than the ocean. During the last ice age, the Black Sea was a freshwater lake.
Indeed, alien invasive species can be as damaging as oil spills, and their effects much more persistent. The invasion of the Black Sea by a voracious comb jellyfish from North America (Mnemiopsis leidyi) is one of the best-documented examples of a marine alien invasive species introduced through ballast water.
Cotylorhiza tuberculata is a species of jellyfish, of the phylum Cnidaria, also known as the Mediterranean jellyfish, Mediterranean jelly or fried egg jellyfish. It is commonly found in the Mediterranean Sea, Aegean Sea, and Adriatic Sea.
Bears, wolves and lynx inhabit the old growth forests. In the Black Sea, one still finds bottlenose dolphins and about 180 species of fish, including tuna, anchovy, herring, mackerel and the famous white sturgeon. Monk seals, sadly, have become extinct here.
The Black Sea has a depth of over 150 meters, and its waters are filled with hydrogen sulfide for almost two kilometers. From the perspective of sailors, the sea was black due to severe storms in the winter, during which the water is so dark it looks black.
How deep is the Black Sea?
The Black Sea is a marginal sea of the Atlantic Ocean lying between Europe and Asia; east of the Balkans in Southeastern Europe, south of the East European Plain in Eastern Europe, west of the Caucasus, and north of Anatolia in Western Asia.
Identification: In this species, there is a fringe of tentacles around the bell, four oral arms near the center of the bell, and 4 petal-shaped reproductive organs (gonads) which may be orange, red, or pink. This species has a bell that grows up to 15 inches in diameter.
The black sea nettle may also have a diet similar to that of the purple-striped jelly, preying on copepods, larval fishes, planktonic crustaceans, fish eggs, pelagic tunicates, ctenophores (comb jellies), and other jellies.
“It's a very rough sea, with strong winds blowing in from Russia, whipping up waves that are several metres high. It's a lot more dangerous than the Mediterranean.” With winter approaching, Mocanu warns that already by November, “the water will be very cold.
With rivers providing an abundant supply of fresh water, the upper layers of the Black Sea are less dense than its saltier lower layers. A permanent boundary between the two prevents any vertical mixing. The oxygen, derived from the atmosphere and photosynthesis, remains restricted to these surface waters.
Following decades of pollutants entering its waters, the Black Sea is now facing an environmental crisis of extreme proportions, and is considered one of the most environmentally degraded regional seas in the world. Illnesses related to water quality, such as diarrhea and hepatitis A, are widespread in the area.
The straits were in Turkish territory, but when Russia gained control of the north shore of the Black Sea in the 18th century, Russian commercial vessels were accorded free passage through them by the Ottoman government.
Not many foreign tourists venture to the Black Sea, but the locals know a good thing when they see it. This is the region's best beach, and in summer, it attracts plenty of local families for picnics and a spot of sun slothing, though it rarely gets crowded, even in the height of the holiday season in July and August.
There are three species of dolphins in the Black Sea off Bulgaria, the short-beaked common dolphin, the harbour porpoise and the common bottlenose dolphin. In recent years there have been allegations that local fishermen may be responsible for the dolphin deaths along this stretch of coast.
The only sharks in the Great Lakes region can be found behind glass in an aquarium.
In late 1997, oceanographers William Ryan and Walter Pitman of the Lamont-Doherty Earth Observatory in Palisades, New York, published evidence from sediment cores that about 5500 B.C., water from a rising Mediterranean began spilling over into the nearby Black Sea, raising water levels 15 centimeters a day; by the time
Unfortunately, in the real world treating a jellyfish sting by urinating on it may actually cause someone in Monica's situation even more pain, rather than relief. Urine can actually aggravate the jellyfish's stingers into releasing more venom. This cure is, indeed, fiction.
Most aren't lethal, but a few are: some species, including the box jellyfish (most commonly found in and near Australia), can deliver a sting strong enough to kill a human in just a few minutes. If you're in an area where it is known that jellyfish like to hang out, skip the swim altogether.
To date, there's only one species that has been called 'biologically immortal': the jellyfish Turritopsis dohrnii. These small, transparent animals hang out in oceans around the world and can turn back time by reverting to an earlier stage of their life cycle.
Jellyfish can sting if they brush against you when you're swimming in the ocean. You also can get stung if you step on a jellyfish, even a dead one. Usually, jellyfish stings will hurt, but are not emergencies. Most cause pain, red marks, itching, numbness, or tingling.
Jellyfish are mostly made of water, so they die quickly after washing up on shore. They're cold-blooded animals and can lose mobility when water temperatures are below normal. Cannonball jellyfish look like mushrooms and lose their color soon after they wash up on shore. Some jellyfish can sting after they die.
While jellyfish stings are painful, most are not emergencies. Expect pain, red marks, itching, numbness, or tingling with a typical sting. But stings from some types of jellyfish — such as the box jellyfish (also called sea wasp) — are very dangerous, and can even be deadly.
A jellyfish breathes by taking in oxygen from the seawater through its skin so as soon as it is on dry land it can no longer live. In fact, a jellyfish is about 95% water.
Vinegar is used to stop the venom in stingers. Caution: Do not use ammonia, urine, rubbing alcohol, fresh water or ice. They all can trigger the release of more venom. If you don't have vinegar, move on to scraping off the stingers.
A jellyfish sting starts off like a sharp, burning pain. It feels like you've been stung by a bee, but in a long line. The pain faded, but I developed hives along the sting site about 24 hours later. They got really itchy, like a long line of mosquito bites.
