Re­port pro­poses steps to keep Asian carp out of Great Lakes

Cape Breton Post - - Canada -

TRA­VERSE CITY, Mich. — The U.S. Army Corps of En­gi­neers is rec­om­mend­ing a mix­ture of tech­nolo­gies in­clud­ing loud noises and water jets at a cru­cial site in Illi­nois to pre­vent Asian carp from reach­ing the Great Lakes.

The corps re­leased a draft re­port Mon­day an­a­lyz­ing op­tions for up­grad­ing the Bran­don Road Lock and Dam near Joliet. The com­plex is on the Des Plaines River a few miles down­stream from elec­tric bar­ri­ers in­tended to pre­vent fish in the Mis­sis­sippi River wa­ter­shed from reach­ing Lake Michi­gan through Chicago-area wa­ter­ways.

Bran­don Road is con­sid­ered a bot­tle­neck where new struc­tures or tech­nolo­gies could strengthen de­fences against Asian carp. Sci­en­tists say if the carp reach the Great Lakes, they could dev­as­tate a $7 bil­lion fish­ing in­dus­try by crowd­ing out na­tive species.

The re­port also sug­gests in­stalling an­other elec­tric barrier.

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