The Center for Biological Diversity is petitioning the federal government to protect lake sturgeon under the Endangered Species Act.
The Center's Mark Finc says there used to be 15 million lake sturgeon in the U.S. There's now just a few thousand.
While Michigan and some other states have taken steps to protect lake sturgeon, Finc says it's not enough.
"What we have found is it's fairly haphazard," says Finc, "and that it really needs to be more consistent across the board, instead of just a couple spots here and there."