Aquarium fish
Fish is one of the ancient groups of vertebrates living on Earth over 300 million years. They now inhabit most waters of the globe, despite the different conditions of existence…

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Valuehost (Carassius auratus)
A distant ancestor of the goldfish - common goldfish that live in marshy lakes and ponds in East Asia. Distinctive features Body length up to 20 cm rounded Body, with…

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days

Catfish catfish clingy or clingy

In General, large catfish and Remora are most inclined to free life, often travel without assistance. Many small catfish live almost hopeless Remora, sucker, mouth in whales, sharks, manta rays, and again between the gills of sharks Macedonia and other large fish.

Columbus in 1494 and set anchor off the coast of Cuba, seen catfish hunt with the hangers on the turtles. In our days this hunt with “hunting fish” described by many researchers. Catfish adhesion to the custom of the fishermen of Torre owl Strait, South China, Venezuela, Cuba, Mozambique and Zanzibar. Catch any fish, even sharks, but mainly sea turtles. And the aborigines of Australia hunted with clingy catfish and dugongs.

Start with the fact that they catch in the sea catfish Remora. Then he pierce a hole in the tail, pass through a long thin rope and tightly tie it around the tail. The second, shorter, the twine is passed through the mouth and gills of catfish Remora. So two “moorings” and towed catfish Remora at the side of the Shuttle. Continue reading

Goldfish in the pond

Goldfish (lat. Carassius auratus auratus) subspecies of the freshwater fish of the genus carp. Her ancestor was domesticated by the man in the VII century ad, and is one of the most popular aquarium fish, presented to a group of breeds of domestic aquatic animals, obtained as a result of centuries of hybridization and directional selection individuals with certain accidental characteristics, resulting from mutations. One of the obsolete naming all home and pond “goldfish” was “gold carp”, derived from General scientific systematic names, Carp.

History

The history of breeding goldfish Asia has at least a Millennium and originated from children’s hobby to collecting in which the housing was offered and developed in cages, in pens, in wells, in tubs and barrels for all small and medium animals — as the first kind of Pets at home. Continue reading

Black sea (Pont Evxs)

The greatest length of the Black sea from North to South — 580 km and a maximum depth of 2210 m, the average — 1240 m. the salinity of the water is approximately 18 ppm. The depth increases pretty quickly. Over a sloping beach near Evpatoria, Feodosia. On the South coast, in mountain areas, the depth increases more rapidly: a few meters from the shore you have to swim (or, in the alternative, to swim along the shore). Be careful, even at a short distance from the shore can be strong currents to deal with which is not prepared person is quite difficult. But mostly this does not apply to places of mass bathing (if not to swim too far). Waters of the Black sea, as a rule, not susceptible to freezing. The average sea temperature in winter ranges from +6 to +8 degrees, in summer — from +22 to +24 degrees (can warm up to 26 degrees in a particularly hot summer). However, it is worth noting that the Black sea could throw a “surprise”: one day deep cold currents cool the coastal waters up to 12 degrees, even Continue reading