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Wildlife reservoirs

The fauna of reservoirs in its habitat is divided into two main groups. The first is zooplankton, and the second is benthos. Zooplankton lives directly in the water column, and benthos inhabits the bottom of the reservoir. Separate groups form organisms that live on certain objects, underwater plants, as well as fish. So, plants and animals of ponds – what are they? Plants They populated the entire aquatic environment. In lakes and streams, in ponds and channels, various representatives of the flora world grow and multiply. For millions of years of their evolution, they have perfectly adapted to the habitat conditions in water bodies. Some of them are completely submerged in water, while others grow above its surface. Some of them generally live on the border between water, land and air.
Marsh marsh – it forms in the shallows large thickets. Its leaves are powerful and have a xiphoid shape. Reach lengths up to 1.5 meters. At calamus swamp has a long rhizome, covered with traces of dead leaves. These rhizomes – a well-known cure for various diseases. It is used in cooking (spices), and in cosmetics.
Rogoz – this plant concentrates on marshy shores. Its rhizome is creeping and has a hollow interior. A thick stem of a cylindrical shape rises to a height of 2 meters. It is crowned with characteristic brown spikelets, gathered in a panicle. Short and hard leaves are located in the lower part of the reed stem. The thickets of this plant sometimes encircle the reservoir with an impassable wall, presenting a safe shelter to its inhabitants.
Water lily. This plant is rarely seen in flowing waters. It mainly grows in swamps, ponds, creeks and oxbows. Its powerful rhizome has strong adventitious roots, and oval leaves, sitting on long petioles, float on water. One of the most beautiful water plants is a water-lily white. It is dedicated to her many poetic works and legends.
Own ecosystem As it is known, living conditions in reservoirs of various types are also different. That is why the species composition of animals living in flowing waters differs significantly from the animal world that settled exclusively in still water. In this article, of course, we will not be able to describe the diversity of this fauna, but we will note the main groups of animals that inhabit such water bodies. Zooplankton These are the most popular animals living in the reservoirs. The term “zooplankton” is called the simplest microorganisms: ciliates, amoebae, flagellates, rodents. They serve as food for fry and other small aquatic animals. These organisms are small enough in size, they can not be seen with the human eye, because this requires a microscope. Consider them on the example of amoeba. Amoeba ordinary This creature is known to everyone who has reached school age. Amoebas are animals of water bodies (photo in the article), which are convinced single-celled loners. You can find these creatures almost everywhere where there is water and particles that are edible: bacteria, little relatives, dead organics.
Amoebas, or Kombers, are not fastidious creatures. They live in lakes and seas, crawling on aquatic plants. Sometimes they settle in the intestines of vertebrates. Amoebas have their overseas relatives. These are the so-called foraminifera. They inhabit only the sea waters.
Branch-bearing crustaceans Zooplankton of standing waters is represented mainly by so-called branch-growing crustaceans. These creatures look like this. Their shortened little body is enclosed in a shell consisting of two wings. Their head is covered from above with a shell, to which are attached two pairs of special antennae. The posterior antennae of these crustaceans are well developed and play the role of fins. Each such antenna is divided into two branches with dense feathery setae. They serve to increase the surface of swimming organs. On their little body under the shell is up to 6 pairs of swimming legs. Branched crustaceans are typical animals of water bodies, their sizes do not exceed 5 millimeters. These creatures are an indispensable part of the reservoir ecosystem, because they are food for young fish. So, let’s go to the fish.
Silver spider Its second name is the water spider. It is a spider-like creature that is widespread throughout Europe and differs from its relatives by swimming setae on its hind legs and three claws on them. He earned his name due to the fact that his belly glows with silver light under water. The spider does not sink thanks to a special water-repellent substance. You can meet him in standing or slowly flowing waters. The silver spider feeds on various small animals that become entangled in the threads of its underwater web. Sometimes he catches his prey. If his catch is more than usual, he carefully manages the excess in his underwater nest. By the way, the spider makes its nest by attaching threads to underwater objects.

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