Dangerous sea creatures
Rear Admiral Viktor Dygalo Ananiyovich — a man who was born by the sea, and…

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What can you cook fish
Fish – a valuable food product, a favourite in many countries of the world since…

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Moray is one of the most interesting and controversial fish
Long been one of the most dangerous predators of the planet was considered to be…

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fish

Marine and freshwater fish. The similarities and differences.

The Caspian sea should be considered a sea or a lake? Because it is not connected directly with the ocean, according to the strict requirements of geography, therefore, is the lake. But the water in this lake is salty, marine. Therefore, we call this the closed reservoir of the sea. Lake Baikal is a lake or the sea? Baikal is also considered the lake as it is fresh water.

Fish who spend their lives performing in high salty waters of the sea; fish, living from birth to death in fresh water – freshwater.

And the fish that live in the coastal parts of seas, where flow of fresh water rivers? They are usually considered as brackish.

In the Caspian sea is the real sea herring, which live and breed in the sea and in fresh water will never enter. All three groups of Caspian herrings that peacefully exist in one place, related to each other, but they differ in their appearance and biological features: first marine, second is saltwater, third freshwater.

There are species of herring, living in the sea for spawning going far in the river. These fish have a characteristic title: “diadromous fishes”. Continue reading

Sharks attacks on humans

How I was almost eaten by a shark

Remember the words of captain Cousteau: “the Shark is one of the most magnificent sea creatures. We admire her strength and beauty.” And fear of shark attacks . People they consider to be their eternal enemies in the sea. Still, after one movement of the jaw can bite man, one blow to overturn the boat. Man-eating sharks reach a length of twelve metres and a giant whale grow to twenty.

How many spooky stories told about the shark attack on humans . They attacked the victims of the shipwreck, the divers descended to the bottom to work, bathers at coastal beaches. In Australia. tell, once the shark grabbed his leg to the man who stood almost on the very shore, and the water was just above the knee.

And I there is great hunting refers to the shark trust. Once they’re dead scared one of my close friend. It was he who told me this sob story. I’ll tell the first person. I think it’s better for perception. This story I heard more than once. And every time he began with the words: Continue reading

Construction of water bodies for special purposes

The construction of reservoirs can have different purposes. Artificial ponds are created for garden decoration, arrangement of recreational areas, fishing, swimming, and also for fire safety – in this case, is the construction of the fire pond. The reservoir can perform any one function or combine several functions at once.

The construction of an artificial pond

The design of the artificial pond is largely due to its functionality. During the construction of an artificial pond for any purpose, be it a pond to breed fish or a pond, we always take into account the wishes of the customer and take into account territorial features of the site. Considering all these important aspects in the design phase, we are able to create a unique artificial reservoirs that meet all the requirements, but also complement the landscape of the site from the point of view of visual perception of space.

The construction of the fire pond

Fire pond is a storage of water used in case of fire. It is required on site to ensure an adequate level of fire safety. Unlike conventional ornamental pond the construction of the fire pond has a number of strict requirements designed to ensure unimpeded use if necessary. Continue reading