For over a century, lake trout offspring were not surviving through their first winter in Lake Champlain — so the state of Vermont has been stocking the lake with yearling trout for the past 45 years. But over the last three years, there's been a seemingly positive and significant change in the survival of the lake's young trout.
However scientists don't know why the change is happening. Ellen Marsden, a professor of fisheries at the University of Vermont, joined Vermont Edition to talk more about it.
Broadcast live on Wednesday, Sept. 6, 2017 during the noon hour; rebroadcast during the 7 p.m. hour.