|06-24-2010, 01:51 PM||#1|
Curio & Relic
AKaholic #: 3738
Join Date: Apr 2005
First Asian carp found near Great Lakes
Single Asian carp found 6 miles from Lake Michigan
CHICAGO – An Asian carp was found for the first time beyond electric barriers meant to keep the voracious invasive species out of the Great Lakes, state and federal officials said Wednesday, prompting renewed calls for swift action to block their advance.
Commercial fishermen landed the 3-foot-long, 20-pound bighead carp in Lake Calumet on Chicago's South Side, about six miles from Lake Michigan, according to the Asian Carp Regional Coordinating Committee.
Officials said they need more information to determine the significance of the find.
But environmental groups said the discovery leaves no doubt that other Asian carp have breached barriers designed to prevent them from migrating from the Mississippi River system to the Great Lakes and proves the government needs to act faster.
Scientists and fishermen fear that if the carp become established in the lakes, they could starve out popular sport species and ruin the region's $7 billion fishing industry. Asian Carp can grow to 4 feet and 100 pounds and eat up to 40 percent of their body weight daily.
Rogner, from the Illinois Department of Natural Resources, estimated that the male carp was about 3 to 4 years old. It was caught live but has since been killed and will be sent to the University of Illinois to determine if it was artificially raised or naturally bred.
The fish was sexually mature, but Lake Calumet's conditions aren't conducive to reproduction because the water is too still, Rogner said. Even so, the lake is the ideal living environment for the fish because it's quiet and near a river system, he added.
Officials said they'll use electrofishing and netting to remove any Asian carp from the lake.
They have been migrating up the Mississippi and Illinois rivers toward the Great Lakes for decades.
There are no natural connections between the lakes and the Mississippi basin. More than a century ago, engineers linked them with a network of canals and existing rivers to reverse the flow of the Chicago River and keep waste from flowing into Lake Michigan, which Chicago uses for drinking water.
Two electric barriers, which emit pulses to scare the carp away or give a jolt if they proceed, are a last line of defense. The Army corps plans to complete another one this year.
In Michigan, officials renewed their demand to shut down two shipping locks on the Chicago waterways that could provide a path to Lake Michigan. The U.S. Supreme Court has twice rejected the state's request to order the locks closed, but state Attorney General Mike Cox said he was considering more legal action.
A Chicago-based industry coalition called Unlock Our Jobs said the discovery of a single carp did not justify closing the locks. Doing so would damage the region's economy and kill jobs without guaranteeing that carp would be unable to reach the lakes, spokesman Mark Biel said.
A fisheries biologist with the Illinois Department of Natural Resources holds a Bighead carp caught in Lake Calumet in this photograph released to Reuters June 23, 2010. The 20-pound (9-kg) Asian carp was caught during routine sampling efforts by the Asian Carp Regional Coordinating Committee on Tuesday. It was the first time the voracious invader has been found beyond twin electric barriers designed to keep them out, authorities said
A 20-pound Asian carp is held after being caught beyond the electric barriers constructed to keep the dreaded invasive species out of the Great Lakes. State and federal officials said Wednesday that commercial fishermen found the 3-foot-long, 20-pound carp in Lake Calumet on Chicago's South Side, about six miles downstream of Lake Michigan.
Daraclor: A brand of anti-malaria pills which we had to drink every week while on the border. Legend had it that these would make you turn yellow and that you wouldn't be able to tan.
|Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)|