DESCRIPTION: Sturgeon have cartilaginous skeletons and a tube-like mouth. In the Kootenai River, they can grow to be larger than 200 pounds. They are gray in color. HABITAT: Kootenai River white ...

ranging in size from 5 feet to more than 7 feet long. All four were secured under water so they would remain alive. While inspecting the boat, troopers found an additional large white sturgeon ...

But the longevity of the sturgeon in the Kootenai River is waning: It hasn't reproduced in real numbers in at least 30 years due to habitat change caused by Libby Dam, which shut its gates in 1975.