You might remember predictions of really high spring chinook runs this year. But, turns outs, after spring salmon runs wrapped up, the numbers were not as high as everyone had hoped.
Biologists had predicted the Columbia River would see one of the stronger spring salmon runs in the past decade. But it looks like forecasts were off by a little more than one-third. Biologists say, still a decent run, just not all that exciting.
One tool they use to predict salmon runs are early returns of male salmon, known as “jacks.”