Asian Layers

Asian layers have invaded the great rivers of the United States and are literally at the gates of the great northern lakes, freshwater reserve world's largest. Other freshwater species are disappearing at top speed.

Therefore health authorities in Chicago have installed an electrical barrier of $ 18 million in the channels that access the five great lakes that you could stop them ..... Orpossibly not! The tents are just a few miles from the entrance to Lake Michigan, if you already have not agreed to it. The biodiversity of the northern lakes and freshwater in Canada are as threatened as the fishing industry a business generates about 5,000 million dollars annually.

The silver carp are so numerous that the ships of the Fish & Wildlife organization had to protect theirfreeboards by chicken wire to avoid impacts to these animals that weigh about 20 kilos. Breaks the tents can reach 3 meters high and many fans have been injured by the impact against them, even with broken bones.

Nobody really knows for sure what will happen when the carp reach the Great Lakes, but compared to what happened in the Illinois River has been invaded by them in less than 10 years, the thingdoes not look good .. experience already exists ... the famous zebra mussels that have invaded various part of the world 20 years ago while traveling in the water tanks of freighters.

But Asian carp may be even more harmful to eat by filtering 40% of their weight daily in plankton! Plankton is a nutrient that based on all the other species that inhabit the waters of the northern United States.And it does not end here, because when the tents are not available change plankton diet of detritus.
There are three species of Asian carp known as the Black-headed, the silver and high-head. They all escaped from fish farms in Arkansas back in the 1970s. Since then the Mississippi River, the Missouri and Illinois are literally invaded by silver carp and "bighead". Asian carp are called tents butare so different from common carp as a fox what is a dog.

The Asian carp were imported by Arkansas farmers last thirty years to eat tons of algae that proliferated in the Mississippi River

It's an old story: an alien species is introduced into an ecosystem that after everyone wants her out. It becomes, ultimately, a threat to the flora and fauna. It is the turn of this role to the Asiancarp. You are approaching the area of the Great Lakes , between the United States and Canada, and many conservationists and government biologists fear the voracious and prolific fish inflicts great damage to a fragile ecosystem and threatened by other invasive species .
According to the Environmental Protection Agency U.S. (EPA), two species of Asian carp, bighead and silver, were imported fromAsia by catfish farmers in the 1970s to clean their ponds matter and algal suspension. During the great floods of the 1990s, many of these ponds overflowed and carp were released into waterways of the Mississippi River basin.
Using sophisticated genetic test that detects carp DNA in suspended particles floating in river currents, scientists have determined that the fish is in the Illinois River,ie, seven kilometers from Lake Michigan. Among the ideas that have been provided to prevent reach him are poisoning rivers in the Chicago area through which the fish can move, the emergency electric fishing or fish chemical castration.
It will not be an easy job, because the tent has already managed to save some of the obstacles placed for her. Because they feel a strong aversion to electricity,in 2002 electrical wires were placed in the bottom of the Sanitary & Ship Canal, which is the entrance to the Illinois River and, therefore, also a gateway to the Great Lakes. The Corps of reinforced in 2004 with a permanent barrier and more powerful.
That was his DNA found on the Illinois River means that got through these cables. It has been decided that a portion of the canal will be...