It's purely numbers. In fact, they use the word “pieces” quite often. It's the number of pieces of salmon, so that's the essential metric.
We started seeing size declines at the headwaters in particular. Large fish were disappearing. That, of course, is a productivity issue: Less fecund fish have fewer eggs.
Rhonda mentioned the changing net size. We were doing that in relation to trying to preserve and protect the larger chinook. It should be noted that these chinook were up to eight years old. We lost the eight-year-olds. We've pretty much lost the seven-year-olds, and now we're down to four- to six-year-olds. That's a huge canary-in-the-coal-mine problem.