Scientific Investigations Report 2008–5201
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2008–5201
Figure 1. Bloom of the alga Aphanizomenon flos-aquae, disturbed by the wake of the boat, Upper Klamath Lake, Oregon, 2006. (Photograph by Mary Lindenberg, U.S. Geological Survey, September 26, 2006.)