Figure 2. Median concentrations of large (> 63 µm) particulate (cell associated) microcystins, dissolved microcystins, chlorophyll a, total nutrients (nitrogen and phosphorus), the ratio of total nitrogen to total phosphorus, dissolved nutrients, and the ratio of dissolved inorganic nitrogen to dissolved inorganic phosphorus in water samples from Upper Klamath Lake, Oregon, 2007–09. Source for 2007–08 data: Kannarr and others, 2010.

First posted May 30, 2012