On the loose
Asian carp (bighead and silver) jumping out of the Illinois River near Havana, IL.
Bighead and silver carp (collectively referred to as Asian carp) escaped from Arkansas fish farms into the Mississippi River and have marched steadily upstream in the Illinois River towards Lake Michigan. The invaders reached the Peoria area about a decade ago where their population has been doubling almost every year. In 2003 the Army Corps of Engineers built an electric fence in the Chicago Sanitary and Ship Canal about 25 miles from Lake Michigan, but soon found it did not stop the Asian carp. So the Corps of Engineers built a second, higher-voltage, barrier that became operational in April 2009 at the same location. By this time Asian carp had been seen less than 10 miles away from the electric fences. {Continue Reading »}
Feb. 12, 2010 public hearing in Chicago.
Over three hundred people turned out for the federal Asian carp hearing in Chicago on February 12, including Prairie Rivers Network staffer Traci Barkley who was quoted in the Detroit Free Press.
Traci, who conducted some of the early research on the electric fence prior to joining Prairie Rivers Network, reminded top federal officials that it was originally designed to stop the round goby from invading the Mississippi basin from the Great Lakes, but it was too late. {Continue Reading »}
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A century ago the Chicago Sanitary and Ship Canal was hailed as an engineering masterpiece. Built a century ago to carry sewage and ships, the canal connects the Great Lakes basin to the Mississippi River Valley – two ecosystems that evolved separately for millennia. But today the canal has become a superhighway that allows plants and animals from one ecosystem to invade the other. Zebra mussels from Lake Michigan have spread through the Mississippi River and her tributaries, clogging water pipes and causing millions of dollars worth of damage to industrial facilities. There are many other examples. Today two species of Asian carp threaten to devastate the Great Lakes and inflict irreversible damage on sport fisheries, wildlife, regional economies and the people that rely upon them. {Continue Reading »}
Asian carp jumping out of the Illinois River near Havana, IL
Invasive Asian Carp have been detected only six miles from Lake Michigan in the Chicago Sanitary and Ship Canal, past an electric barrier designed to keep them out of the Great Lakes. The Asian Carp Rapid Response Workgroup completed operations in late November 2009 involving intensive fishing and a major rotenone application to kill all fish in a six mile stretch of the Chicago Sanitary and Ship Canal in an effort locate and halt the spread of the carp invasion.
This was a drastic measure, taken because much is at stake if Asian carp are able to reach and populate Lake Michigan and the Great Lakes. But we can’t let this drastic event become an ongoing management measure. Nor can we allow this manmade gateway between the Great Lakes and the Mississippi River Basin to remain open and available as a conduit for further invasion to both basins. While the current threat is from invasive Asian carp to Lake Michigan, we shouldn’t lose sight of the threat posed to Illinois rivers and streams from this connection; this was the pathway for invasion of the zebra mussels into much of the eastern half of the United States. We must call on the State of Illinois and the Army Corps of Engineers to act immediately to close all connections between the Chicago Sanitary and Ship Canal, adjacent waterways including the Des Plaines River and the I&M Cnanal, and Lake Michigan. Take action here!
Learn more about the threat of Asian Carp to our rivers and Great Lakes and what must be done to ensure protection of our aquatic resources here.
