Carp — cultural form of carp, bred by man in the ponds, lakes, and reservoirs. Carp are bred mainly in southern and Central Russia, Ukraine, the North Caucasus. Some species of carp were able to acclimatize in the Northern areas (near Petersburg, in Novosibirsk oblast, Krasnoyarsk Krai).
Carp have unusually wide dorsal fin at the front is equipped with a sturdy saw-tooth serrated beam. The same beam and have found podrostkovogo fin.
Carp grows quickly. By the end of the first year of life its length for about 10 cm with a weight of 25-30 g. In favorable conditions, by the end of the second year it weighs 450-500 g, and in the third year (sexual maturity) it weighs 2 kg.
Carp is very similar to carp and also how he is unpretentious: content minor content of oxygen in the water, that is not very afraid of water pollution by sewage and, most importantly, unpretentious in nutrition. A juvenile common carp feeds on plankton and benthos. Adult carp — a real “pig” among fish: it feeds on worms, insect larvae and insects, various crustaceans, molluscs, therefore, will be very useful to feed him special fish food designed for him. Continue reading
They live in shallow water, so there is a good chance to step on it. The most dangerous type is considered Vadimony hedgehog hedgehog. Its needles are very long and thin. When injected into the human body they break down and cause inflammation, which in the untimely appeal to the doctor, can be life threatening.
Act as respiratory organs pileolus — another kind of sea urchin, which lives near the shore. It is red and dark gray. It needle a length of several centimeters. They are also very fragile, and if you step on a hedgehog, the needles remain in the body.
The most dangerous lionfish family Scorpaenidae. Them hard to miss in the water: they have very bright color, and their fins resemble feathers. They are very dangerous and for the people, and for other marine animals.
Contact with the impeller can cause death. It can be found near reefs. Therefore, swimming in these places, should be especially careful to try not to step on it and stay away from its poisonous needles. They cause intense pain, the venom can lead to respiratory arrest, and in place of injury appears a large tumor. Continue reading
How nice to go fishing on his own land! And it is quite possible, and easy. How to breed fish in the pond . Need to follow a few rules.
First, for breeding fish pond should have a depth of not less than 1.2 m, and even more so in the winter the water is not frozen completely. Under the ice the fish can die from lack of air, so be sure to make the hole. It is very important what made the walls and the bottom of the reservoir. At the bottom should be a layer of gravel and sand, and algae in the water.
The number of fish depends on the size of the reservoir. This quantity is easy to calculate. For one fish of average size need about 50 liters of water. Knowing the size of the pond, you can calculate its volume and divide by 50. So is determined by the number of animals that can be placed in the pond. Fish from the pet store should be placed in a package with water and put on the surface of the pond to the water temperature equalized. So the fish better adapt to the new environment. You cannot run in the river fish pond, to the river in a different microclimate. In addition, the fish could be sick, and get sick from it and others. Continue reading