We all know that water is life. Without water can’t live no living creature. And the first life originated in water. Fish one of the many live organisms living in the aquatic environment. They live in the oceans and seas, rivers and lakes. You can see them in the pond and the stream, in the waters of caves and even in puddles. In nature, there are over 25,000 species of fish, and they are divided into two classes: Bony fish (more than 23 000 species); Cartilaginous fishes (9000 species).
To the class of cartilaginous fish include sharks, rays and chimeras. To the class of bony fish include salmon. okuneobraznyh. preobrazenie. clupeiformes. Cypriniformes, catfishes, wildcookie, flatfish, coloscopie.
Fish are cold blooded vertebrates. their streamlined body covered with scales. They breathe with gills, and with the help of fins and tail to swim. Water entering the body through the mouth, passes through the gills, and spilling over her holes. Oxygen enters the bloodstream Continue reading
You can order the production of a marine aquarium, including non-standard, the services of professional designers for the design of marine aquarium Leave your information and our specialists will contact You.
The design of marine aquarium
The cost of services for the design of the aquarium depends on the amount of work. In the marine part of the selection filtering equipment, lighting equipment, background for aquarium and other decoration, selection and settlement of aquarium fish and invertebrates, stabilization of the microclimate in the aquarium. subsequent maintenance of the aquarium.
MARINE AQUARIUM AND ITS CONTENTS
Marine aquarium now more a rarity. Nevertheless, the inhabitants of a marine aquarium is more demanding in terms of content than freshwater. Continue reading
In the seas and oceans of our planet are populated with over 21000 species of fish. About ten percent of them belong to the industrial types. Breeding allows you to obtain not only the fish as a commodity, it is the raw material for the production of medicines, fertilizers, pet food. Industrial fish are divided into freshwater and marine.
Freshwater species are fish that inhabit the ponds, lakes, rivers. The main industrial freshwater fish species are catfish, carp, perch. To artificial breeding of well adapted to black bass, trout, carp, Amur, silver carp. Such kinds of fish as pike, perch, catfish, carp, crucian carp, bream, take the first place in terms of industrial production in our country.
Particularly valuable of freshwater species of fish are:
sturgeon and stellate sturgeon, Beluga, sturgeon, this species of fish has a very tasty and fatty meat, and from them collect valuable Beluga caviar;
salmon – humpback salmon, chum salmon, Steelhead, these fish species are given, in addition to high demand of red caviar, delicious meat. Continue reading