Is Niagara Falls a barrier against fish movement? 
CA Source: eurek alert 3/23/2020
Is Niagara Falls a barrier against fish movement?
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 essential to conservation efforts to stop the spread of invasive aquatic species causing ecological destruction in the Great Lakes. The study is published today in the journal Molecular Ecology.
 

"In the past 50 years or so, aquatic invasive species have expanded in the Great Lakes as a tremendous conservation concern, causing billions of dollars' worth of damage," said Nathan Lujan, lead author of the study and a Gerstner Scholar at the American Museum of Natural History. "Both Canadian and American authorities are concerned about the potential impact of these species on the Great Lakes and are very interested in installing barrier technologies in the Niagara River that would slow or stop their spread."

 
Niagara River Bullhead, Brown Continue...

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