White sea belongs to the basin of the Arctic ocean and represents a huge reservoir polutoratonny. Seas of this type are relatively few. Similar characteristics possess Black sea, the Mediterranean, the Baltic and Hudson Bay. White sea is the smallest of them. It is divided into two unequal parts – the Northern (outer) and southern (inner). They are joined by a relatively narrow Strait, also called the throat.
In modern times, few bodies of water that don’t pollute and the White sea is no exception. Anthropogenic pollution of the White sea began immediately after the occurrence on its shores of a man and eventually became so significant that the consequences can be observed today.
In a relatively short era of navigation, some areas of the bottom, especially in small lips, where it is convenient to stand during the storm, were so covered with coal slag, which still have not recovered destroyed the bottom biocenoses. These environmental problems of the White sea cannot be considered modern, though harm from them not less.
The woodworking industry has no less impact on the ecology of the White sea. Wastes at sawmill one keretsky industrialist, was filled in the Strait between the two Islands on which it is located.The forest industry is one of the key environmental problems of the White sea. Continue reading
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 minimum size of marine aquarium should be 100 x 50 x 50 cm the larger the aquarium you can afford, the better.
Technically, the organization of the aquarium with sea or brackish water is absolutely the same as freshwater. The main difference is only that in water you need to add salt. Since this water is in increasingly corrosive than freshwater, aquarium eliminated any metal objects. The destruction of the metal in the water can lead to poisoning of fish.
All items used for preparation of water and irrigation of the soil (buckets, colanders, spoons etc.), should be plastic. If you have an external thermostat, stick them to the glass and do not hang on the wall of the aquarium with the help of metal hooks with which they are sold. The same applies to the combined instrument heater-thermostat Even fixing of luminescent lamps to the cover must be non-metallic.
For most of us to use clean seawater is not possible, because either we live too far from the sea, or the seawater is heavily polluted. Manufacturers produce salt for sostoyatelnoy sea water with the right balance of minerals that the fish need. You just have to mix the salt with tap water in accordance with instructions to obtain the required specific gravity of the final solution. Continue reading
Aquarium fish, by definition, live and breed in the aquarium. For the most part, people have fish for decoration, but in some cases they are specially bred for sale. Ornamental fish in natural conditions live in subtropical and tropical fresh waters, and obliges the owner of the aquarium to maintain appropriate habitat conditions with a high temperature water environment.
Many aquarium fish have odd shapes, small sizes and bright colors, for which they are highly appreciated in the decorative plan. The most popular are goldfish, which as if came to us from the famous fairy tale. In the Russian realities aquarium fish is ecosublime, Cypriniformes and Perciformes orders. Well, most often in aquariums of our residents can meet angelfish, barbs, catfish and nannostomusy.
If you are new to the aquarium thing, we might think that fish is an extremely stupid water creatures. In fact, they are bought only for beauty and decoration, so the mind is required. Moreover, some people consider fish not as living beings but as a real decorative object. Only with time come to them the idea that in the aquarium swim real Pets, for which poznavatelnoe very interesting to watch. Aquarium fish are often attracted to genetic research, resulting in new and very beautiful variety.
To do fish, you can not only adults but also children. For the latter category is especially useful, since communication with aquatic animals, develops psychological comfort and establishes emotional contact. Simultaneously, children develop skills and a sense of responsibility. Fish can even be affected person on a physiological level. In the process of monitoring the normalization of blood pressure, disappears stress, calms heart. Continue reading