CFM, Atlantics look noting like pacific salmon, as they have a hooked lowerjaw like a steelhead, not a kype to the nose like the other pacific salmon. Besides, their mouth is white, so they would never be mixed up with a blackmouth. They aren't even related to salmon, they are most closely related to brown trout.

Anyway, here is a cool URL of salmon spawning that has Atlantics in the act, along with 4 species of Pacific salmon, and it also has comparative videos of all 5 Pacific salmon species, Atlantic salmon and brown trout, and even bull trout and brook trout. And I just gave away where I got my avatar

http://students.washington.edu/manu19b/UWspawnings.html