Fig. 8. Selenium concentration in fallen liter, organic detrital layer, and surface sediment (0–5 cm) in September 2000. Error bars are standard deviations of several sampling locations shown in Fig. 2. 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.