Big spring chinook like the one above are scarce on the Columbia River. An already-gloomy forecast has turned dismal, with returns at less than half of the 10-year average. It’s a frustrating and puzzling year for federal research fishery biologist Darren Ogden, above, and others working to bring back the most prized fish in the Columbia Basin. And the decline spells trouble for the hungry orcas who feed on chinook. (Photo: Steve Ringman / The Seattle Times)