Keith Denton, consultant to the Lower Elwha Klallam Tribe, on its SONAR and fish weir project and the trickiness of counting fish:

Keith Denton, consultant to the Lower Elwha Klallam Tribe, demonstrates moving a SONAR station that is located in the Elwha River. It is being used to count fish that migrate in the river.

“Counting fish is like counting trees – except they’re invisible and they move.”