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Presentation on theme

Sharks (lat. Selachimorpha) is a superorder of cartilaginous fish comprising eight teams, twenty families and about 350 species. Members of the superorder widely distributed in all seas and oceans, there are also freshwater sharks. Most species belong to the so-called real predators, some species, particularly whale, and giant deep-sea sharks, eat plankton.

For many millions of years before the planet appeared the first man, ruler of the prehistoric seas was a shark. The power of evolution sowed on Earth, countless forms of life that could not stand the severe tests and disappeared one after another, as the shark continued to exist. One prehistoric era is succeeded by another, have any amphibians, reptiles, birds, and mammals – the shark continued to exist. Pterodactyls – the winged reptile for millions of years plied the skies, disappeared from the face of the Earth. Dinosaurs-Triceratops, Brontosaurus, allosaurus and many other “saurus”, it is important chestvovali on our planet died out, leaving no trace. As the shark continued to exist.

About 20 million years ago in the sea scoured a huge Stingray, weighing over 100 pounds, and more than 25 different species of sharks, including sharks, reaching 36 meters in length. The length of these monstrous sharks was Opredelenie their huge teeth. Some of the teeth found in California, weighing 340 grams each and reach 15 centimeters in length, and seven – and ten teeth are quite common. They are triangular in shape and closer to the teeth of modern great white sharks that do not exceed 5-6 inches now with a body length of shark of 12 meters (maximum length). These teeth belonged to the ancestor of the modern great white shark the carcharodon, in huge quantities inhabited the seas. When they were first found in the seventeenth-century scientists, naturalists believed that this fossil bird tongues or teeth of serpents. They could not imagine that this shark’s teeth, and ascribed them to the mythical animal. Continue reading

The aquarium design

People living in big cities, accustomed to the fact that each day is filled with stress and fuss. Frantic pace of life in the concrete jungle every day more and more alienate us from nature. If you want to bring into your life a piece of natural tranquility and peace of the living world — place the aquarium in the interior of your home or office. Motley paints the inhabitants of this amazing water world will make the gray urban everyday life more fun, improving your emotional state.

Marine aquarium the new time — this is not a regular element of Aqua . Experts say high-quality design of the aquarium contributes to the improvement of emotional state, getting rid of depression, mood elevation. The water of the aquarium moistens the air, making the atmosphere more healthy.

If you start from the ancient Chinese teachings of Feng Shui, moving water has a powerful energy to influence a person’s life — it gives abundance, material and spiritual prosperity. Well-designed marine aquarium . filled with clear water and populated fun healthy fish, no doubt, affects the welfare of his master, pulling good fortune, bringing a positive mood. Unique aquarium design interior in accordance with all your requirements, be able to highlight your individuality. Exclusive design,embodying the most daring desires, will make a good impression on family, friends or work colleagues. Do not waste the chance given to you the unique technical capabilities of our century — place it in your home or office a element of Aqua design, representing a little island of nature in a busy world cold city walls. Beautiful and unusual saltwater aquarium in the interior, which is a fairytale world with many mysteries that will allow you to take a fresh look at life. Continue reading

Dangerous inhabitants…

The rest of the sea – the dream of almost every holiday maker! The Eastern part of Russia are used and forced to rest on the coast of the sea of Japan. It would seem that it can be dangerous in this region. However, on closer inspection, it was discovered the inhabitants, who simply need to know and to be particularly careful!

Let’s start with Yellow perch (trehpolosaya) — native of Japanese waters, it has quite a menacing look – the dorsal fin consists of 15 acute rays, the Gill slits are spikes, characteristic of the spotted-striped color…

Reach impressive sizes (up to half), but grow very slowly, reach sexual maturity at ten years of age! So what threat this slow instance of marine fauna? At the base of the spines on the fins and the Gill slits are poisonous mucous glands which secret, getting into the wound, causes a local and then a systemic poisoning of the body. Meeting with Yellow perch can seriously spoil your holiday by the sea. Symptoms: pain and inflammatory reaction, then, perhaps swollen lymph nodes. At the injury there is swelling, which could spread to the entire limb. Famous deaths.

In the injection – treatment of the wound with disinfectants and symptomatic treatment.

Further,it is worth mentioning jellyfish, let’s start with Lanei hairy . the largest jellyfish in the world, in the Guinness book of records registered the maximum size is 2.28 meters in diameter. So, typical signs: red umbrella (maybe raspberry or orange hue), the thickness of the umbrella is reduced to the edge, and the edge of the blade is transparent. The tentacle is quite long, divided into eight beams, form a kind of veil that protects the bodies underneath the umbrella. The hairy cyanea occurs in southern Primorye, mainly small individuals, in spring and early summer they gather in large clusters (up to one hundred meters of the field), there are instances of up to 60 centimeters… the Venom is contained in stinging cells on the tentacles, a single burn is not dangerous to humans, however with increasing dose of the poison received – there is a risk of allergic reactions. Continue reading

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Ponds
Fish enliven the garden pond: for their graceful movements interesting to watch. The role of fish in maintaining the balance of oxygen and carbon dioxide in the water is usually…

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The aquarium design
People living in big cities, accustomed to the fact that each day is filled with stress and fuss. Frantic pace of life in the concrete jungle every day more and…

Continue reading →

My aquarium
The first thing we need to think about is the size of your aquarium. Much easier to maintain in good condition a large volume of sea water than small. The…

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