This post is part of the Science Tuesday feature series on the USDA blog. Check back each week as we showcase stories and news from the USDA’s rich science and research portfolio.
To raccoons, snakes and opossums, crayfish look pretty tasty, and large crayfish will even cannibalize their smaller kin. Crayfish, which live in rivers and streams, need instream cover to hide from all their predators. They also use cover to find food, to shelter while incubating eggs, and to keep themselves from being washed away in floods.
Susan Adams, a fisheries research scientist for the Forest Service’s Southern Research Station, examined different types of cover in the Yazoo River basin of Mississippi to see whether crayfish used large pieces of household trash for shelter when natural cover was limited. Her findings recently appeared in the journal Environmental Management.