Our unique Black sea

Our city Odessa is located on the best sea in the world. There are living animals that can’t cause great harm, it’s just not natural cataclysms.

Lovingly the black sea washes the shores of Russia, Ukraine, Romania, Bulgaria, Turkey and Georgia. It is connected with other seas through the Bosphorus and Dardanelles and the sea of Azov – Kerch Strait.

Our sea is not too big (in the world), but that is not the last place. With a total area of 422 000 km from North to South the sea stretches for 580 km and from East to West 1150 km, the biggest depth – 2210 m, the average – 1240 m.

The length of the coast around the Black sea – 3400 km Into the sea fall into 3 major rivers: the Danube, Dniester, Dnieper.

Known than the Black sea?

First, one of its exclusive feature is the total absence of life at depths greater than 150-200 m (although there are a few anaerobic bacteria), due to the fact that at this depth the water is saturated with hydrogen sulphide.

In the summer there are times that Odessa is called “the hydrogen sulfide came up” when on the beaches there is a characteristic smell of the water and the fish is thrown out for lack of oxygen in the water, and the enterprising inhabitants of Odessa go on shore and collect it.

Secondly, we have in the sea lives a unique algae of noctiluca (nochesvetka) is a predator, feeding on motovilichinskie substances and, in addition, having the ability to fosforescente (glow). Thanks to this we can observe in August the red sea.

Wildlife Black sea is just amazing. You can wander through the knee-deep water on the sandy beach – and very much to see: crabs, hermit crabs, almost invisible bottom fish Black sea – calf, sole and flounder, mullet and mullet and sea needle.

But the most lively zone of rocky shores, where there are multi-colored multicellular algae, inhabited by blennies, crabs, mussels. Grow deeper thickets of algae, Cystoseira inhabited by crabs, snails, shrimps, seahorses and fish – greenfinches.

Sweep over the dense swarms of mullet and Jack mackerel. Next, start stones, covered with cortical animals obratitesj – sponges, bryozoans, polychaete worms, sea squirts that feed on the Croaker, sea rock perch.

And where the end of the rocks, and starts stretching into the depth, covered with sand and silt and the Black sea shelf in the cold water of the sea live Stingray Fox, flounder turbot, gurnard and spiny shark Katran. Then pure hydrogen sulfide and no life, except for one species of bacteria that break down down the remains of life and produce the hydrogen sulfide.

In our sea, lakes and rivers dolphins are the big animals of our sea, the representatives of the suborder of toothed cetaceans. Most often, next to the shore you can see the bottlenose Dolphin (Tursiops truncatus) this Dolphin is found in coastal waters of all continents, all seas, except polar and cold – traveling around the world, almost everywhere you can meet him.

Less than a bottlenose Dolphin, black sea coast you can see the common Dolphin, or the Bonn conventions (Delphinus delphis) – white on the sides and differentiate it. Bonn conventions, is also a cosmopolitan, that is to be found around the globe, but, unlike bottlenose dolphins, more common in the open sea, sometimes forming flocks that can include dozens of individuals.

In the past people ate meat dolphins, do fishing coats of skins and fat were used for lighting in oil lamps. In the Black sea no one hunts dolphins since the 1980s, and although each year it continues to kill thousands of dolphins (stuck in fishing nets and suffocate, without being able to emerge), now they became much more.

Especially suffered from hunters and fishermen little Dolphin-azovka, or Azov harbour porpoise (Phocaena phocaena). The coast is now more likely to appear in North Caucasian coast, and in some places of the southern Crimean coast in the summer their is more than bottlenose dolphins.

In our sea there are almost no dangerous animals. Only two types of jellyfish can cause us trouble when bathing – kornerot jellyfish (Rhizostoma pulmo). You going to tell her fleshy, bell-shaped dome and a huge tentacle under it. They are poisonous and stinging cells that jellyfish have dangerous side.

Another major black sea Medusa Aurelia (Aurelia aurita). Its stinging cells are found on the tips of the fringe and significantly weaker, since the skin on the body they do not penetrate, but burn the mucous membranes of the eye or the edge of the lip is Medusa not difficult.

Most of all, be wary of relatively small fish called the sea dragon, also called the sea dragon, Scorpion, snake. This brownish-yellow fish, something like a steer, reaches 35 cm in length.

This demersal species often buries itself in mud, and to see her is almost impossible. The first dorsal fin bears sharp spikes; on each Gill cover is also on the thorn; at the base of thorns – poisonous glands. Depending on the depth of the injection site and fish size effects of lesions can be different.

There is severe pain, increasing for half an hour to the maximum. In the area of injections, the skin swells up, and sometimes it may come to a deadening of the tissue. Soon General symptoms of poisoning: headache, pain in the heart, disturbed breathing, paralysis of limbs, loss of speech. In the most severe cases, death occurs.

Usually, however, the prognosis for life and health favorable. The pain lasts for days, swelling up to ten days, and General malaise for about a month.

Also we have in the sea live Stingray (sea cat) has the shape of a rhombus is 80 cm and Has a long thin tail with a sharp serrated venomous spine (sometimes two or three). Prefers sandy bottom, loves shallow water. In an emergency, if you grab the hand of rays or accidentally step on the Stingray lightning strikes the tail and injects the strongest venom.

The pain quickly intensifies, and after 5-10 minutes it becomes unbearable. Local phenomena (swelling, redness) are accompanied by fainting, dizziness, heart malfunctions, and even partial paralysis. Usually 5-7 days the victim is recovering, but the wound heals much later.

But do not be afraid to go into the water. These cases are very rare, and on city beaches animals don’t swim away because of the system of breakwaters. We have such amazing, full of secrets, beautiful sea…. So let us treat it with love and respect!

How to breed fish in ponds
Pond fish farming is the breeding of commercial fish in specially adapted or constructed for this purpose reservoirs. Farms can be full (full system) or incomplete (napolnitelem). In full system…

Continue reading →

Fish nutrition in nature
To properly feed the fish in captivity, it is important to know how they feed in nature, and what habits related to nutrition, there are the fish of each particular…

Continue reading →

Danger while bathing in the sea.
Marine life can spoil the holiday for any vacationer. To avoid this, stick to certain rules. Experts of the tourist market suggest that you, first of all, to learn from…

Continue reading →