Thanks Dave that's good info. Recently watched a video of coho at the head of Chilliwack Lake taken by a local diver:
https://www.youtube.com/watch?v=Ltm4quR_0IA
Also is the demise of the late run coho understood to any extent? To go back to WMY's comment that the hatchery stock "was created by interbreeding these three groups.", that's one of the sins hatchery management is said to commit; not respecting the diversity that nature produced. Has the late run been mix stocked out of existence? While the mainstem of the lower river doesn't seem to provide good spawning strata for any species, there has been work on side channels and small tributaries. Has this been insufficient? It's a shame to see this stock disappear.
Awesome video, love seeing all the wild fish. I did see two clipped coho