Figure 2
From: Nutrient consumption and chain tuning in diatoms exposed to storm-like turbulence
Growth curves (a), pH values (b) and nutrient concentrations (c, d) over the experimental days (T0-T12). (a). Cell concentrations over the experimental days. Logarithmic y axis. (b). Mean pH measurements. Still cylinders were always gently stirred before sampling (see methods). (c). Phosphate and (d). silicate measurements in Turbulent and Still conditions. Inset: zoom-in of the portion between T8 and T12. In the turbulent condition the threshold silicate concentration (ca. 1–2 µM33, 34) for diatoms was reached. Abscissa always represents experimental days. Values are means of the duplicates (n = 2) and vertical bars indicate maximum and minimum values. Blue diamonds indicate turbulent condition, red squares the still condition and, where applicable, triangles indicate measurements in the blank (supernumerary beaker where no cells were inoculated, see Methods).
