Yellow snail aquarium
Yellow snail aquarium – more stupid title to come up with couldn't so today let's talk about aquarium snails – Apple snails. And again, all the best was written to…

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Oceanic nekton
The ocean abounds with excellent swimmers who, in the words of the famous German nineteenth-century biologist Ernest Haeckel, "free to find their own way". They can resist the strong current…

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Man-eating sharks are operating in tandem

A team of international experts, who arrived at the Egyptian resort of Sharm El-Sheikh after a few cases of shark attacks on humans, concluded that the coast, swim at least two predators that used to eat human flesh.

This opinion was voiced by experts after carefully studying the nature of the wounds on the bodies of the victims from shark tourists. According to them, the predator even belong to different species. If Russians and Ukrainians attacked korotkaia Mako, the deaths of German women over the weekend blame white tip reef shark. According to scientists, this is the worst scenario that they assumed, as one individual it would be much easier to catch.

While biologists believe that the Cougars, who were recently caught off the coast of the red sea, the people did not attack. It turns out that the shark-killers are still on the outside.

Meanwhile, scientists are trying to understand why fish that very rarely attack people, to change their behaviour. According to the expert from the United States, Director of the Florida program for shark research George Burgess, now the coast is examined in order to find any violations of ekosistemy the red sea. Continue reading

Sharks: The story of a bookplate

Ten years ago, on the island of Sipadan in Malaysia, I took a picture of my first shark. It was almost certainly a shark-Zebra, Stegostoma fasciatum. The current was carrying us along sheer walls, and she, mysterious and beautiful, gleamed in the distance. My heart jumped to somewhere in the Adam’s Apple, I quickly raised the camera and took this blurry picture.

Shark-Zebra

The shark disappeared into the depths, and I got a new hobby — a passion for cartilaginous fish. Have devoted a considerably long time, wrote some articles , even led a couple of sections in Wikipedia. Traveled to different corners of the planet to dive with them.

Of all the sharks I liked Fox, or as she is known in English, thresher. She is like a shark-Zebra with long tail and harmless disposition. Graceful, smooth and swift. Without the aura of celebrity, without the reputation of a ruthless killer. So to speak, a humble toiler of the ocean depths.

Thresher shark (Alopias vulpinus, Thresher shark). Illustration from the book “A field guid to the sharks of the world” Continue reading

The population of the pond fish

The presence of fish in the pond is acceptable and desirable to the owners, but is not required, and determining the purity of water. In addition, any interior design or landscape can give a boost to due to the reservoir. For living in the pond need a more hardy breed of fish than the aquarium. There are breeds that are most suitable for pond. At their selection it is necessary to consider following features:

– number of fish determined by the size of your pond the following calculation: for every 0.5 sqm of the pond not more than 2.5 cm of body length of fish. It is recommended to buy fish no longer than 10cm.

– fish are able to produce their own food in the pond, so they must not be overfeed. Feed them in spring and summer. You can safely take a break in feeding to the time of departure on vacation. For feeding one should use food floating on the surface, it remains necessary to remove from the water.

– the main causes of death of fishes are the pond overpopulation, disease, and insects such as larvae of dragonflies, water beetles, grabiak. Continue reading

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How to build a saltwater aquarium?
If a person is not an aquarist, he can perceive the content of fish in the tank as violence over living nature, because we are picking up marine animals out…

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10 facts about the Black sea
In honor of the coming of the pores of the holidays we offer to your attention a selection of interesting facts about the Black sea. The first mention of the…

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