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
0
36
(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
3
0
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
0
0
Dimitar Pendoski marches to the end of a rickety walkway, skips around sunbathing youngsters and sweeps back a tarpaulin protecting his empty lakeside restaurant, recently closed by officials under pressure from UNESCO.
Environment
Jul 1, 2021
0
7
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
0
53
Two weeks of intensive fishing in and around a Chicago waterway failed to produce any proof that more Asian carp have made it past electronic barriers intended to keep the invasive species out of Lake Michigan.
Ecology
Jul 12, 2017
1
1
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
0
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
The latest weapon in the fight against Asian carp doesn't look much like a weapon at all: It's a 13-mile concrete and steel mesh fence that splits the narrow divide between the Des Plaines River and the Chicago Sanitary and ...
Ecology
Nov 1, 2010
0
0
(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
1
0
