In Traverse City, Michigan, a fish obstacle course is keeping unwanted species out of a river. As dams come down around the world, native fish are returning to their home waters. But invasive species are taking advantage of that same access. So how do we separate native fish from undesirable fish?
In Traverse City, researchers are testing an innovative solution called FishPass. This system sorts native fish from invasive species using a combination of obstacles, bubble curtains, adjustable currents, and cameras that hone in on identifying features. The goal is to open the door to native fish like sturgeon, while turning away invasive species like sea lamprey.
#GreatLakes #Fish #Fishing #Ecology #Sturgeon #SeaLamprey #Dam #Michigan #TraverseCity
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“How This River Keeps Unwanted Fish Away” was produced by Great Lakes Now/Detroit PBS.
Produced and Written by
Kathy Johnson
Narrated by
Rob Green
Edited by
Bill Allesee
Camera
Greg Lashbrook
Additional Material
Team Elmer’s
Great Lakes Fishery Commission
Jon Lemerond
PolkaDot Perch
Bubbletubing.com
Shedd Aquarium
Into the Outdoors Education Network
Conservation Resource Alliance
AECOM
John H. Bolf Jr.
Andrea Miehls, Great Lakes Fishery Commission
