The depths of the sea a long time attracted humanity with its mysteries. It is home to bizarre creatures: unusual fish, animals, more like plants, and numerous molluscs. Besides, man explored the depths of the sea just five percent, but what we know about sea creatures that will last for many years of hard study. But let’s leave research to the scientists, and they will go to the best aquariums in the world, to get acquainted with their unusual inhabitants.
1 AQWA, Perth, Australia
Australian AQWA aquarium situated on the West of the continent, boasts painstaking restoration of the natural habitat of local underwater inhabitants. Main tank of the aquarium can accommodate up to three million litres of water, so the exotic fish, even the most enormous, is where to turn.
The main attraction here is the transparent tunnel, which stretches for 98 metres. Through its transparent walls, visitors can see schools of fish frolicking under water, watch sea turtles slow and rapid sharks.
The Oceanarium is divided into five sectors, reflecting the marine flora and fauna of different parts of the Australian coast: the Great southern coast, Perth coast, Marmion Marine Park, Shipwreck Coast and Far North. Continue reading
The carp genus, belonging to the family Cyprinidae, represented by two species — silver and gold, or common carp.
The Golden or common carp is as carp and common carp dorsal fin long, hard spiny rays in dorsal and anal fins, but is distinguished by the absence of antennae and a single-row pharyngeal teeth. The back is dark brown, while the sides are Golden with a copper tint. Pectoral and abdominal fins reddish. It lives in Central and Eastern Europe, and in Siberia in swampy, overgrown ponds, in rivers is rare. Likes silt. For the winter carp buried in silt and hibernate even when shallow waters freeze to the bottom. They are able to burrow in the mud at a depth of 70 cm and this allows them to survive the dry summer, when shallow body of water completely dries up. It sustains the concentration of oxygen dissolved in water to 0.5 mg/l, lowering the pH to 4.5. The Golden carp is one of the most hardy species of fish and in some waters is the only representative of the fish population. Can reach masses up to 3 kg, and I individual weighing about a pound are a valuable trophy.
With all the advantages of common carp, unfortunately, it is slow-growing. Although in the southern regions the first year of growing under favorable conditions may reach a weight of 20 to 50 g, in the second year — 200 and even 300 g. In the middle zone two-year old Golden carp in prodajne exceed weight 100 — 150 g. Females are larger than males. Reach sexual maturity at age 3 to 4 years. Continue reading
The Mariana trench is the deepest of the currently known geographic features. Trough stretches along the Mariana Islands for more than 1500 km At the bottom of the trench the water pressure reaches 108.6 MPa!
In 1958, the expedition established the existence of life at depths greater than 7000 meters, thereby disproving the common perception at the time, the idea of the impossibility of life at depths greater than 6000-7000 m. In 1960 it was held immersion bathyscaphe Trieste to the bottom of the Marianas trench to the depth is 10915 m.
The recording sounds the device was to transfer to the surface of the noise-like gnashing of teeth of the saws. At the same time on the TV monitor appeared a vague shadow, like a giant fairy dragons. These creatures had several heads and tails. After an hour, the scientists of the research vessel were worried that the unique equipment, made of beams of heavy-duty titanium-cobalt steel, spherical shape with a diameter of about 9 m, can remain in the abyss forever. It was decided to raise it up. The equipment was recovered from the depths for more than eight hours. As soon as he appeared on the surface, it immediately put on a special raft. Camera and sonar picked up on deck. It turned out that a strong steel construction beams were deformed, and 20-inch steel rope, on which it is being lowered,turned out to be half-sawn. Who tried to leave the unit at depth and why – is a complete mystery.. Continue reading