Gave this video a like! Bright silver with bars just visible are among the most attractive game fish IMO. Very strong and fun to catch. I have eaten chum both from the ocean and rivers. One I caught in Haida Gwaii was a bar of silver with a green back. I've chum to vary in flavor, some are a bit gamey, but usually are the mildest tasting of the 5 pacific salmon with no off flavours. Often we put them in an egg wash, dip them in seasoned bread crumbs and fry in a mic of butter and oil. A little wasabi paste on the side goes well.
BC anglers inherited a long prejudice against "dark" fish from the English anglers who came here both to live and as visitors. Even slightly dark coho and chinook were eschewed & not considered suitable table fair. Until the early 90s only those 2 species could be retained or even legally targeted in non-tidal water. I've never killed a dark chum - only ones that have a good silvery sheen to the flanks and a white belly though others have and say they are more than palatable