Before and After

This image shows the comparison from 2014 to 2016 of polychaete worms found in the Klamath River. “The densest colonies look like 60s shag carpet,” Nicholas Som, a statistician with the Service said. “Before the 2016 photo was taken, there was a flow event large enough that our model predicted reduced habitat for polychaetes relative to 2014, and this photo, taken at the same location in both years, demonstrates that it was true.” Credit: Julie Alexander/Oregon State University