Phytoplankton growth and biological response to iron and zinc addition in the Ross Sea and Antarctic Circumpolar Current along 170°W

By K. Coale, Xiujun Wang, S. J. Tanner, Kenneth S. Johnson. 2003

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The carbohydrates of Phaeocystis and their degradation in the microbial food web (2007, background): “Blooms of P. antarctica occur in regions where trace metals, notably iron, are limiting phytoplankton growth (Martin et al. 1990; Coale et al. 2003, Schoemann et al. 2005).”
Growth rates, half‐saturation constants, and silicate, nitrate, and phosphate depletion in relation to iron availability of four large, open‐ocean diatoms from the Southern Ocean (2004, methodology): “Similarly, a Km(Fediss) of 0.1 nmol L21 for F. kerguelensis was reported (Coale et al. 2003), close to the value of 0.19 nmol L21 that we report for this species in the present study.”
Synergistic effects of iron and temperature on Antarctic phytoplankton and microzooplankton assemblages (2009, background): “In this region, mixed-layer dissolved Fe concentrations can be<0.1 nM during the growing season, (Coale et al., 2003; Fitzwater et al., 2000; Sedwick et al., 2000).”
Adaptive strategies by Southern Ocean phytoplankton to lessen iron limitation: Uptake of organically complexed iron and reduced cellular iron requirements (2011, background): “Using this approach, Coale et al. (2003) reported a wide range of Km values for diatoms (0.007– 0.125 nmol L21 Fediss) and Phaeocystis (0.005– 0.258 nmol L21 Fediss) in Ross Sea and Antarctic Circumpolar Current waters.”