Veterinary-sanitary examination of fish
In many countries a focus for freshwater and marine aquaculture is traditionally fish. In the balance of meat of our country's fish production is 25%, it is used in more…

Continue reading →

COMMON CARP
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…

Continue reading →

White sea catfish
white sea catfish baltasis Maritime šamas statusas T sritis zoologija | vardynas taksono rangas rūšis atitikmenys . lot. Sciadeichthys albicans rus. white sea catfish ryšiai . platesnis terminas – baltieji…

Continue reading →

Fish-pineapple or Australian kishechnik (Cleidopus gloriamaris)

Australian kishechnik has in common several names, and all of them are connected with the appearance of this marine life.

The English call it fish-pineapple because of coloring and body shape. Each of fairly large flakes fish has a yellow color with black outline, which is very like a pineapple rind.

Another name for the Australian kishechnika sounds like “fish knight”. It is due to the fact that each lamella has a spinous process, making the fish seem as if clad in armor like a knight. By the way, this “outfit” several prevents her to swim (aided by and large fins), but it’s a good idea to protect themselves from predators.

The first species was described in 1882 scientist De Vis. Today to meet kishechnika in the coastal waters of Western and Eastern Australia. Typically inhabits estuaries and coastal bays to a depth of 5 to 25 meters, where there are rocky debris and coral reefs. However, sometimes they get caught in fishing nets trawls that sweep the ocean at a depth of 250 meters.Colorful kishechnike

Australian kishechnik has an oval shaped body, sharply tapering at the tail, with a length of about 25 cm are Active at night, hiding during the day in crevices and caves, so that to observe in their natural habitat is not easy.Australian kishechnik

After dark fish-pineapple goes hunting, but its main prey are shrimp and small zooplankton. To attract food, kishechnik uses a pair of small light organs located on either side of the mouth on the lower jaw. However, the light produces no fish, but a colony of bioluminescent bacteria living in symbiosis with it. It is believed that the emitted light smoothly changes color from green to red as they Mature individuals. Also I suspect that using light signals animals communicate with each other.Luminous organs of fish-pineapple

Contain the Australian kishechnikom in the aquarium is very difficult, as they only need live food, and shelter from stone. No commercial value fish has not. Tried it agree that it tastes not very good, although in appearance and reminiscent of pineapple.A pair of fish-rizera

To simplify the process of finding derivatives, and not to keep all the necessary formulas in your head, it is good to have at hand a table of derivatives. Use it to solve problems in physics, algebra and geometry will be much easier.

Garden pond. Clean and healthy water
Garden pond is a luxury. Water fascinates. Water is pure joy of life and the personification of relaxation. A pond in your garden is a symbol of vital force, courage…

...

The pond at the dacha with his own hands
Many owners of a suburban area, making a list of the desired one of the first to include a pond or other body of water - a fountain or a…

...