Sure hope the last sentence of the article never comes to fruition.
Yes, whitefish actually eat them. They're also quite fond of another invasive species now common in the great lakes...the round goby.The food source for whitefish has been mostly eliminated by invasive species brought into the Great Lakes by non tribal members. Ever heard of zebra and quagga mussels? They filter out the food required for opossum shrimp to thrive. https://en.m.wikipedia.org/wiki/Mysida