Howdy 8ft.,
The Chum are the threatend/endangered Summer-run Chum. I had never even heard of them until the fed.s had to take action to hopefully rescue the run.

Trivia Q. Which two species of Salmon are considered the most evolutionary advanced?

A.Because they spawn lower in the river and their young exit freshwater after hatching Pink and Chum Salmon are thought to be on the path which will eliminate rivers being necessary for reproduction