It's a mystery. Invasive sea lamprey, the Great Lakes' biggest predator, primarily feed on lake trout, one of the lakes' most prized sports fish. When trout populations are high, researchers expect to see fewer lamprey-wounded ...
Plants & Animals
Sep 28, 2020
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53
(AP) -- Members of Congress are demanding emergency action to prevent Asian carp from invading the Great Lakes and devastating their $7 billion fishery.
Ecology
Dec 12, 2009
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New research shows that fishes on either side of Niagara Falls—one of the most powerful waterfalls in the world—are unlikely to breed with one another. Knowing how well the falls serves as a barrier to fish movement is ...
Plants & Animals
Mar 23, 2020
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36
Two feared species of Asian carp have zoomed beyond the $9 million electric barriers built to keep them out of Lake Michigan. Now, the only thing left between the carp and the Great Lakes is a lock and dam in southern Chicago.
Ecology
Nov 24, 2009
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0
(AP) -- An initial six-week mission to catch and kill Asian carp lurking on the Great Lakes' doorstep turned up none of the despised fish, suggesting few if any have eluded an electric barrier designed to block their path ...
Ecology
Mar 29, 2010
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0
(AP) -- Fears that giant, voracious species of carp will get into the Great Lakes and wipe out other fish have led to rising demands that the government close the waterway connecting the lakes to the Mississippi River - ...
Environment
Dec 2, 2009
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(AP) -- No Asian carp have been spotted so far in a Chicago canal during a massive fish kill aimed at trying to keep the giant fish out of the Great Lakes.
Ecology
Dec 3, 2009
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Of all the fishy predators in the Great Lakes, few are more destructive than the sea lamprey. There's something of a horror movie in their approach: jawless, they attach to prey such as salmon, whitefish or trout with a sucker ...
Ecology
Feb 21, 2017
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11
The electric barrier on the Chicago Sanitary and Ship Canal that is considered the last line of defense to stop an Asian carp invasion of Lake Michigan has a problem: Fish can swim through it.
Ecology
Dec 24, 2013
3
0
(AP) -- After nearly four decades as a fishing guide on the Great Lakes, Pat Chrysler has seen enough damage from invasive species to fear what giant, ravenous Asian carp could do to the nation's largest bodies of freshwater.
Ecology
Dec 10, 2009
1
1
