few decades ago to meet a fish rattan in Russia was possible only in the Far East.Today, anglers from all over Russia are alarmed, because in their native waters came rattan - a fish that eats everything around.These unpretentious people of standing fresh water extraordinarily fertile, well tolerate all the hardships of the Russian climate and eat caviar other inhabitants of ponds and lakes.
Fish rattan: description
largest representatives have a length of 30 cm, the minimum size of an adult - 14 cm. Externally rattan - fish unremarkable.It has an elongated shape resembling a firebrand.Painting of the variability in the mating season the color scale is bright black, in the rest of the time is dominated by gray, brown and green tones.
body is dense, with a big head.On the back you can see the implicit spots and stripes of irregular shape.It features rattan fish photos are presented below, its huge mouth.It is for this disproportionately large mouth Perccottus glenii representatives gave the name of rattan.Many small but sharp teeth help to deal with the loot.
Habitat conditions
homeland of these predators were initially water of the Amur.In the 19th century, innocuous at first glance, the small fish were imported into the central Russia, Peter released into rivers and other cities.And thanks to the incredible vitality of rattan brood so that became displace other fish from the water.This is due to the fact that the basis of the diet became valuable fish eggs, fry, tadpoles, larvae, insects, mollusks.The very presence of the trash fish in the pond says that other species are doomed to extinction.The damage is applied across the fish fauna.
Get rid of rattan is very difficult because this weed fish is very unpretentious to the conditions of the habitat.In order to survive the drought, rattan buried in silt, and with the onset of the rains continue their livelihoods as if nothing had happened.In the freezing waters of the predator well winters in the ice.In waters with a poor content of the food fry practice cannibalism, eating their smaller counterparts.
opinion of scientists and economists' forecasts
For the reason that rattan - fish, destroying the fish fauna, its getting into the major rivers and lakes are considered by scientists as pollution.Do not always blame people.The eggs are often transferred by migratory birds.Several eggs enough to 4-5 years gone all living creatures in the pond.Fish-brand competition can make pike, perch and catfish.Nevertheless, the annual cost of reducing the number of valuable fish species is growing.Experts do not recommend to settle predator in artificial ponds, rattan fish get rid of the competition.
But for small decorative ponds is no better view.Many anglers say that the great rattan bite, especially in winter.For bait you can use any bait worms, grasshoppers, meat.The taste of the fish is not bad, but the head occupies a large part of the body and the belly is often full of clams and snails shells.For this reason, interest in small fishes, and most anglers notes that the harm from Rattan is much greater than the benefits.
