Read the Question.
Controversy seems to have surrounded salmon from the 20th century and beyond. Why do you think things like overfishing, dams, and fish farms have remained a concern as they pertain to salmon?
Scan the Blurb.
There are several different species of Salmon in the waters around the United States and its river systems. Salmon has been an important source of nutrition for many groups of people in the history of the US, particularly some indigenous groups.