Free game – Shark
Typically, sharks are considered extremely dangerous animals, and call it being an ordinary fish is sometimes more than difficult. This is not surprising, because, just look at the size of…

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Aquarium fishes - a complete encyclopedia beginner aquarist
Encyclopedia aquarist: My Pets - aquarium fishes- the Russian version is very easy to use, detailed and informative guide to the content of aquarium Amazing electronic encyclopedia containing detailed information…

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Black sea (Pont Evxs)

The greatest length of the Black sea from North to South — 580 km and a maximum depth of 2210 m, the average — 1240 m. the salinity of the water is approximately 18 ppm. The depth increases pretty quickly. Over a sloping beach near Evpatoria, Feodosia. On the South coast, in mountain areas, the depth increases more rapidly: a few meters from the shore you have to swim (or, in the alternative, to swim along the shore). Be careful, even at a short distance from the shore can be strong currents to deal with which is not prepared person is quite difficult. But mostly this does not apply to places of mass bathing (if not to swim too far). Waters of the Black sea, as a rule, not susceptible to freezing. The average sea temperature in winter ranges from +6 to +8 degrees, in summer — from +22 to +24 degrees (can warm up to 26 degrees in a particularly hot summer). However, it is worth noting that the Black sea could throw a “surprise”: one day deep cold currents cool the coastal waters up to 12 degrees, even Continue reading

The most interesting facts about the Black sea

I think, in the Black sea swam many of our readers, and more — just heard about it. Indeed, the Black sea is one of the most interesting (and beautiful) seas in the world, including their historical significance.

1. In the Black sea is a very interesting distribution of currents. Two major currents, and that’s a huge cycles with a wavelength of about 400 kilometers. In honor of the scientist who discovered these currents, called them “Glasses of the Knipovich”.

In addition, in the Black sea inhabited only the upper layer of the water column. All because at the bottom of the sea huge amounts of hydrogen sulfide, rising and middle layers.

Life occurs to a depth of about 150-200 meters, and then, as has already been mentioned — hydrogen sulfide. It reacts with iron, attached to the anchors ancient mariners black. Maybe that’s why the Black sea got its name. Continue reading

Catfish (Frozen fish)

Wels catfish (Silurus glanis) large fish, reaching 5 m length and 300 kg weight, inhabiting rivers and lakes of Europe from the Rhine to the East. To the North of the som is to the South of Finland, South to Asia Minor, the Caspian and Aral seas and flowing into their rivers. No catfish in the rivers of Siberia. There is no com also in England, in the Iberian Peninsula, in France, Italy and Western Greece. Soma colour variable, usually olive-green, almost black back, white belly, flanks irregularly shaped spots. Small reed form, inhabiting the southern part of the Aral sea, intensive black. Dorsal fin catfish in a tiny, barely noticeable, no fatty fin, but the anal is very long. The upper jaw bears two long whiskers on the bottom is four short. Huge mouth soma gives away the predator. Really, catfish— a voracious predator that eats small fish, frogs, large bivalves. There were cases of attacks soma a water bird swims and the river dogs. Still, the voracity of the catfish greatly exaggerated. Usually catfish are holding in the Continue reading