length: 100 cm; weight: 15 kg; production season: extracted for research purposes only
Live croakers live mainly in tropical and subtropical zones of the basins of the Atlantic, Pacific and Indian oceans, and only a few representatives of the family occur in temperate regions. There are no croakers live in the Red sea, the Seychelles Islands, in Melanesia, Micronesia, Polynesia and in the Azores. In the waters of Bermuda are inhabited only by a single species. At the same time two species Sciaena umbra and Umbrina penetrated through the Mediterranean sea and the Marmara sea in inland low-salinity seas – Black and Azov.
Croaker largemouth – marine fish squad okuneobraznyh. Continue reading
For breeding more demanding of the oxygen content of the water species (pike perch, carp, etc.) will require a larger reservoir size. If the plot runs a small stream, it can be used in a complex with swimming pool, ensuring the construction of the reservoir production, and breed of farmed fish can vary considerably.
When breeding carp, carp farming ponds can be make smaller. The shape of the pond may be different, but more exotic and will look a pond with irregular shapes: round, oval, or curvilinear. Rectangular pool is the most suitable to the rectangular lines. The depth of the pond it is better to do one level because of uneven-age fish require different temperature water regime. Therefore, the differences in depth can be from 1.5-2 m in the center of the reservoir up to half a meter and less closer to the shore and along the edges. Better the bottom to hold sloped, beach — concrete steps with a width of 30-40 cm and 20-30 cm depth of Such stair drops will need for growing plants in shallow containers, and for easy access to the water. Therefore, they should not hold the entire perimeter, but only in the place where the most convenient approach to the water mirror. If in the winter the fish are fully fished, in the water equip wintering well. Continue reading
Catfish has a long body with rounded front, compressed laterally, and with a rear-naked with a large number of mucous glands and soft skin. Large fish head compressed, the eyes are small and close to the occipital part.
The catfish has a big mouth. the lower jaw exceeds the upper in length and slightly curled up. On the jaws there is a huge amount metkovich teeth. Is a pair of long whiskers on the upper lip, two pairs of short – on the chin.
Body colour black catfish on your back turns into dirty white on the belly. There is a small feature, the slower the flow in the habitat of the fish, the darker its color.
Another characteristic feature of the soma can be called the dorsal fin. It is very short and rather strongly shifted to the head. In most reservoirs the size of the fish up to five feet in length with a weight up to fifty pounds.
The soma area in Russia serve as basins of the Neva (Ladoga, Ilmenite and lake Onega), Kuban, Dnieper, Terek, don, Ural and Volga. This fish cannot be found in Levitanovskoy the pool and in the upper reaches of the rivers. Continue reading