With the Alaska salmon season underway, one supermarket chain buyer says not to expect too much change from what happened last year, especially in the sockeye market. The wild card that could change that equation is Canada, where estimates vary wildly for how much sockeye will be coming through in the next few months.

The supply of Copper River sockeye has been steady since the season kicked off in mid-May, while prices have been falling slightly with every new opening and no great variations t…