Scientists say Asian carp could spread through all Great Lakes in 20 years

A risk analysis by U.S. and Canadian researchers finds the food supply and breeding areas in the Great Lakes would allow Asian carp to spread rapidly. The report says just ten breeding females and a few males would be enough of a foothold for the invasive fish to populate all five of the Great Lakes.
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A risk analysis by U.S. and Canadian researchers finds the food supply and breeding areas in the Great Lakes would allow Asian carp to spread rapidly. The report says just ten breeding females and a few males would be enough of a foothold for the invasive fish to populate all five of the Great Lakes.

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Supreme Court won't close locks to keep carp out of Great Lakes

The Associated Press reports the U.S. Supreme Court on Monday refused to hear an appeal filed by Minnesota and other Great Lakes states. The states asked the court to order the closure of shipping locks in the Chicago area to prevent the invasive Asian carp from spreading farther north.

Threat of Asian carp divides Great Lakes states

The New York Times looks at how the invasive species is sometimes pitting neighbors against one another. For example, some states are pursuing legal action to build a barrier cutting off the Mississippi River from the Great Lakes, but Illinois is fighting back, saying that would leave Chicago unable to control floods and interfere with shipping.

Feds agree to shorter timeline for developing Asian carp strategy

The U.S. Army Corps of Engineers says it will come up with a short list of options for blocking the spread of the invasive fish by the end of next year. The Corps had earlier said the process would take until 2015. Asian carp have already invaded the Mississippi River watershed. Officials hope to keep them from migrating into the Great Lakes.

Asian carp may infiltrate Minnesota from northwestern Iowa

State officials on the lookout for Asian carp have been monitoring the Mississippi River. But there are new fears that the invasive species may use another gateway to Minnesota. Anglers in northwestern Iowa have caught dozens of the carp in waters that connect through streams and lakes to southern Minnesota.