Annual element concentrations in eelgrass leaves (Leaf), epiphytes, surface sediments (SS) in the eelgrass pool.

Elemental concentrations are for (A) carbon, (B) nitrogen, (C) copper, (D) zinc, (E) cadmium, and (F) lead. Closed circle and vertical bar are the mean and 1 standard deviation, respectively. The range between horizontal bars on the vertical bar is the 1 standard error. These statistics were calculated from log-transformed data but are shown in normal scale. * P < 0.05; ** P < 0.01; *** P < 0.001.