at Notre Dame says one tiny fish can cause pretty big
problems in the Great Lakes. Many anglers and businesses
faced problems recently with the invasion of zebra mussels.
Now, some ships are bringing in "boatloads"
of trouble to Lake Michigan. Notre Dame Science Professor, Dr.
David Lodge, says, "It's such a nuisance that people
have stopped fishing in southern Lake Michigan because
this [goby fish] is the only thing that's caught."
released a national study about species like zebra mussels
and the goby fish that could present an economic and environmental
threat to the Great Lakes. "I've heard of a few gobies
being caught over on the pier, zebra mussels. They just
hurt the food supply," explains Nate Schunan
of Tackle Haven, St. Joseph.
A Notre Dame scientist says boats from all over the world
are bringing fish people are not used to seeing here in
the Great Lakes. It is messing up the ecosystem and it
is a nuisance to the anglers who fish for a living. "It's
competing with native organisms like native yellow perch
and other organisms in the Great Lakes," says Dr.
goby is the latest thing that has gotten into the
lake," says Captain Ken Neidlinger. "When
we're perch fishing we'll catch the small fish. Most of
the guys will discard them because they feel it's a predator
to the fish so they'll feed them to the seagulls,"
says Capt. Neidlinger.
most cases we don't know how to kill them without killing
everything else," says Dr. Lodge. So he is trying
to cut costs for our government by finding a way to identify
the source of the so-called nuisance species before it
becomes a bigger problem. Dr. Lodge's new study is
in the latest edition of the Journal