Whales in the Black sea
I was introduced to reader's letter "Change" V. Karataeva from Voronezh. He writes to the editor: ". In the fall I was vacationing on the black sea coast. Ya big…

Continue reading →

Fish Cichlids
For example, the stores sold frozen tilapia, which is also owned by the family. It is known that the dimensions may be very varied, as some species have a length…

Continue reading →

Goldfish

Stars in the fairy grottoes

The fish dropped.

The sparkle of gold

Passion, how arrogant!

Goldfish (Carassius auratus auratus, family Cyprinidae, Cypriniformes squad) is the first domesticated fish, and one of the most common species kept in an aquarium. Individuals of this species are relatively small compared to other cyprinids (e.g., carp and koi), and come from less spectacular carp (Carassius auratus) from East Asia. With more than thousand-year history of the contents of the goldfish in China have resulted in several distinct breeds. Individuals of different variations may vary considerably in size, body shape and fins and coloration (known combinations of white, yellow, orange, red, brown and black). History In ancient China, various species of carp (collectively known as Asian carps) were domesticated and used for food. Some of the usual grey and silver sometimes individuals in the breeding gave progeny with red, orange and white color mutation. First unusual coloration was recorded during the Jin dynasty (265-420). Active popularization of carp in ornamental ponds and water gardens was observed during the reign of dinastiyang (618-907). Natural genetic mutations has led rather to the emergence of gold (actually yellowish orange) than the usual silver color. People are more likely to breed and to contain the breed a gold instead of silver. First appeared special meetings in which the fish were shown to the guests in special containers of small size. During the period of the song dynasty (960-1279) the keeping and breeding of goldfish was firmly established. In 1162 the Emperor dynasty, song legally approved the rules for the construction of ponds and cultivation of Golden and red fish rocks. By this time, people not belonging to the family of the Emperor, was prohibited from keeping goldfish of the yellow (Golden) breed, because this color represented power. Probably for this reason that the orange individuals are more common than yellow, even despite the fact that later genetics and methods have greatly simplified the breeding. In the years 1368-1644 (Ming dynasty) practiced the breeding of goldfish in the houses. In this period appeared the first selection forms, unable to live in the pond. In 1276 species were recorded that are not in red or yellow decorative color, also found fish with Voile patterned tail fin. In 1603, goldfish were imported into Japan, where there are rocks Tosakin and Ryukin. In 1611 individuals appeared in Portugal, where it has spread to the rest of Europe. During the 1620s, goldfish were highly valued in southern Europe, because it scales with metal overflow symbolized good luck and success. It has become a tradition to give his wife a goldfish on the first anniversary in the next prosperous year. However, this tradition quickly died, because goldfish have become easily accessible and lost its status. In North America members of the species appeared in 1850 and soon became very popular.

The inhabitants of the red sea
We continue to publish messages to students 4 “A” class. Today, under the heading the Corrs we offer to Your attention a story about the inhabitants of the red sea,…

...

Calories fish: life-giving gifts of the sea!
Caloric content of fish is much lower calorie meat. Which fish is the least calorie, and what are the beneficial properties inherent in this product, we learn from the table…

Continue reading →