Hi everybody.
I’m back from a week of my meetings, so let’s get right to my weekly spring Chinook Salmon update (May 12, 2023).
Run Update
Even though I have been out of the office most of the week, I have been regularly checking dam counts and evaluating PIT tag detections to assess the status of our returns. During this time, I’ve gone through a swing of emotions that are leaving me a wreck. To help you understand why, I have updated the figure showing Chinook Salmon counts at Bonneville Dam (see below). On my last update (May 2), counts were picking up which gave us hope. However, from May 2 to May 7, counts dropped and then leveled out. At this point we weren’t even sure if enough fish would make it to Idaho to provide fisheries. Since then, counts have spiked and now we are confident we can provide fisheries; we just aren’t sure what type of fisheries we can provide. It is hard to project just how many fish are yet to come when it appears we are dealing with one of the latest spring Chinook returns in history. The only year I found that had a later run timing was 2017, and I have added that data to the figure below to give you some perspective. In 2017 we experienced some really high flows in the Columbia River which we think caused that return to be so late. Flows are quite a bit lower this year in comparison to 2017, so I’m not real confident that we expect another late peak like we did in that year. However, this run appears unprecedented so strange things could happen.