HUDSON — Leo Bower remembers when the Hudson River was flush with shad. In the 1970s, Bower and his father kept a fishing shack in Shantytown, a collection of huts banged together from scrap metal and ...

Shad is a species of non-native fish that has become increasingly common along the West. How can this fish affect resources for salmon? What other non-native fish and invasive species pose an even ...