Pond fish farming is an economic sector, aimed to the breeding of fast growing species of fish in specially constructed or adapted for the ponds. It also includes such things as selection and breeding work, the use of intensive technologies of cultivation of fish and acclimatization of new species.
The history of pond fish farms in our territories is rooted in the XIII century Already then to St. Sergius monastery were built by the famous Skete of the ponds. Already then it became clear that to breed the fish much easier and more efficient, although fishing was still the main method of its production.
Artificial ponds for breeding fish are divided into reservoirs and ponds. Reservoirs have multi-year flow regulation and water storage. Ponds – annual (which is a big advantage). Pond fish can have a size from 0.1 hectares or more, the productivity of small ponds is much higher as for large water areas to look harder. Nasushchnye ponds oshivayutsya method of pumping water. Continue reading
In tropical, subtropical and temperate seas there are wonderful animals seahorses. It belongs to the class of bony fish. But looking at it, is it going to say? This wonderful inhabitant of the seas to the unusual fact that has long been considered a fabulous creation.
Chooses shallow, well warmed by the sun, rich in aquatic vegetation and coral. Dodger great is masked in the leaves of algae, due to its appearance and color. His body is a spiked, leathery ribbon-like outgrowths, all of it is of great help for masking. Can change their color in the tone and color of aquatic plants.
Clinging flexible tail to stems of seaweed or coral, he gently sways along with plants. Who the hell would find there? In contrast to the fish. the body is covered with scales and plates, lacking ventral and caudal fins. He has no teeth and has to eat by ingestion of food along with water through its tubular stigmas. Continue reading
In the post-Soviet space ruff rare in Ukraine, Moldova, Belarus, Baltic States, Kazakhstan, Russia. This species, which belong to the family percidae, very widespread in all territory of the Russian Federation, excluding its Northern part and far East.
This schooling fish lives in large ponds, rivers, lakes, quarries. Ruff prefers places with clean sandy bottom, although it can be found anywhere on the pond.
Ruff – fish is small, its average size is 7-10 cm, and weight not more than 100 g. Indeed, it is very similar to a brush, especially when it is taken out of the water. He immediately takes a pose of intimidation – will raise the spiny dorsal fin, the fins will straighten and bend his tail to the side. Continue reading