The diet of any person, except, perhaps, strict vegetarians, is impossible without animal products. Along with meat, eggs, dairy products, fish is a major source of protein. It is believed that ideally, you want to alternate in the diet of fish and meat.
On its nutritional value fish almost indistinguishable from meat, and on the ease of learning the human body surpasses it. In fish muscle contains from 13 to 23% complete protein. The amount of fat varies widely, from 0.1 to 33%, depending on fish species and time of catch. Fish oil contains large amounts of vitamins A and D, additionally, in the muscular tissue of some fish species have b vitamins In fish contains from 1 to 5% minerals, which include potassium, iron, phosphorus. Marine fish are also rich in iodine, which is of great importance for the human body.
Different species have different palatability, bone structure, and different fat content, that makes their cooking. Continue reading
Viviparous. These kinds of bright and unpretentious. They hold the palm of popularity among aquarists for several decades. The main secret of its popularity are viviparous their size, colour, simplicity and ease in keeping and breeding. Formed birth to live fry, bypassing the stage of eggs is the main feature of the viviparous. After the birth of the fry, adult fish, you need to isolate, as adult viviparous individuals can take the fry for live food and destroy the hatchlings. To save fry, landed in the corners of the densely growing aquatic plants.
Guppy. This is a favorite of aquarists and children. Guppies — the most common viviparous. They are found in most aquariums. Males have more popularity than females because of their iridescent coloring. Almost all the male guppies have large bright tail fins, which may surpass in size all the fish. There are breeds with ball tail fin and long dorsal fin (it hangs on its side in the form of a tape). Interesting is the forked form of the tail in which the upper and lower rays abruptly lengthened relative to the middle of the tail. Breeders was bred breed guppies with elongated lower beam tail. But the female guppies prakticheskimi colored, dull and not have a significant diversity of colors. Continue reading
The black sea is an inland sea basin of the Atlantic ocean. Interestingly the origin of the name Black sea. Throughout its history it has changed names several times. The ancient Greeks called it the “hospitable sea”, Pontos euxeinos. The Russians called it “Russian” or Partskim. Then for centuries it has been rather eloquent title: the Cimmerian, Holy, Blue, Scythian, Inhospitable, tavryches’ke, Ocean, Tamaron, etc.
About his name there are several hypotheses. I believe that this name was given by Turks: Karaden guise or Black, that is inhospitable. So they called him because of the fierce resistance of the local population, who lived on the black sea coast, which the Turks tried to conquer. Possibly, the Black sea was named because of its characteristic severe storms, during which the sea darkens.
The black sea is one of the almost uninhabited land, on the seas. Life in the sea is concentrated in a narrow coastal strip at shallow depths. Two hundred meters below, water freezes. And yet, in Black sea you can find many interesting creatures. Continue reading