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…

Continue reading →

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…

Continue reading →

set

Ornamental pond


Make the pond at the dacha with his hands can any modern inhabitant of the metropolis. And this does not need to resort to heavy construction equipment. The material describes how to make a pond on the site with the help of finished plastic containers and plastic film. Before making a pond in the garden need to carefully plan its development, and bookmarks.

How to make a pond from a film on a plot in the garden?
With the flexible coating to really bring to life most daring idea, maybe only slightly adjust its size in accordance with the actual width of the roll of film or butyl rubber, so there were no big scraps, because the cost of these materials is quite high. We offer you to learn how to make a pond with his own hands using locally available materials.

When choosing a location, before you make a garden pond with your hands, make sure that most of specific points of the plot it looked great, but on its surface one could see an interesting reflection not only of clouds, but the house and plants. Continue reading

Is it profitable to breed the fish in ponds?

Every water pool on the farm, at least it was built for a different need, you can always simultaneously be used for breeding fish. With some attentiveness and care works for nothing will never disappear. If you are inside of ownership of a lake, right by the settlement of his juveniles you can increase the amount of fish, and consequently, and profit from it. In the pond gully on the steppe, you can make no ex-here before fish. From flowing through your ownership of the river you can divert water to the lowland, where to arrange a number of ponds for proper fisheries management. Ponds can be constructed in a meadow, but more often they lay in wastelands, swamps, etc., unfit for any other purpose and are quite suitable for ponds. Subsequently, the bottom of the ponds, which fish usually do not deep, turn in arable land: the silt deposited from the water, is an excellent fertilizer, and this gives the pond a few years a fine crop of oats and other breads. On the other hand, if after harvesting of oats to fill the pond with water again, bred in a pond rich in food for fish, causing it to quickly feed that the farmers just need more. Continue reading

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 of water and to choose their own way, different from the animals of the plankton. The combination of these actively swimming animals E. Haeckel called the nekton, which means “floating”. Technically, the nekton are aquatic snakes, birds, and animals, but here we will talk only about the two groups of nektonic organisms — the fish and cephalopod molluscs.

Important nektonic animals adaptations to life in the water column of the ocean, according to Professor Yuri Aleev are maintaining the body in a suspended state, creating a driving force, reducing the resistance of the counter flow of water, control the movement of the body, as well as in the ability to disguise and protection. Continue reading

Marine aquarium
Marine aquariums differ much more sensitive to any changes in the environment. The most important parameters for saltwater aquariums are pH, salinity and temperature. Occasionally the nitrite and ammonia will…

...

Films about sharks – predators of the deep sea
More and more viewers started to watch horror movies. What is it? The fear of uncertainty, a world of knowledge or just to tickle nerves. Maybe all three. Special attention…

Continue reading →