Fig. 6. Selenium speciation in inflow and outflow waters in 2000. Error bars are standard deviations of four seasonal measurements during the year. BUL, sturdy bulrush; BAL, baltic rush; CORD, smooth cordgrass; RAB, rabbitfoot grass; SALT, saltgrass; CAT, cattail; B–W–B, bulrush–widgeon grass–bulrush; T–W–C, tule–widgeon grass–cattail.