Mississippi River Dam Operations Changed To Deter Invasive Fish

ST. PAUL, Minn. (AP) — The Army Corps of Engineers has tweaked how it runs Lock and Dam 8 on the Mississippi River in Genoa, Wisconsin, in hopes of impeding the spread upriver of invasive Asian carp.

carp1 Mississippi River Dam Operations Changed To Deter Invasive Fish

Asian Carp (credit: CBS)

The Corps says it has changed the way it operates the spillway gates at the dam to deter adult carp from swimming through. It has also mounted underwater speakers in the lock gates that broadcast low-frequency noises that deter carp but aren’t known to affect important native species.

The changes were recommended by a University of Minnesota team led by Peter Sorensen. He said in the Corps’ announcement Wednesday that the changes were designed to stop carp while having minimal effects on native fish and angling. He adds that they don’t affect barge traffic either and cost nothing.

(© Copyright 2017 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)

Comments

Leave a Reply

Please log in using one of these methods to post your comment:

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

More From WCCO | CBS Minnesota

Good Question
Best Of Minnesota
Excellent Educator

Watch & Listen LIVE