Just a little more Dolly info. WDFW biologist Curt Kraemer was largely responsible for the 20-inch minimum size regulation for Dollies on the Skagit system about ten years ago. It was based on the fact that Dollies don't spawn until they're about seventeen inches long. In a recent conversation with him he told me that in the annual September count the average number of Dolly redds in that system had increased from 3.7 per mile to 37 per mile; a tenfold increase in ten years.