Southern Ocean Iron Enrichment Experiment: Carbon Cycling in High- and Low-Si Waters
By K. Coale, Kenneth S. Johnson, F. Chavez, K. Buesseler, R. Barber, M. Brzezinski, W. Cochlan, F. Millero, Paul G. Falkowski, J. Bauer and 38 more. Science, 2004
632 citations recorded by the source corpus.
The availability of iron is known to exert a controlling influence on biological productivity in surface waters over large areas of the ocean and may have been an important factor in the variation of the concentration of atmospheric carbon dioxide over glacial cycles. The effect of iron in the Southern Ocean is particularly important because of its large area and abundant nitrate, yet iron-enhanced growth of phytoplankton may be differentially expressed between waters with high silicic acid in the south and low silicic acid in the north, where diatom growth may be limited by both silicic acid and iron. Two mesoscale experiments, designed to investigate the effects of iron enrichment in regions with high and low concentrations of silicic acid, were performed in the Southern Ocean. These experiments demonstrate iron's pivotal role in controlling carbon uptake and regulating atmospheric partial pressure of carbon dioxide.
Subfields: Atmospheric Science, Oceanography
View Paper: https://www.semanticscholar.org/paper/c2c49e7e41515eb7717ba966414fa01e0b0a23cf
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In Oceanography
Citations in the corpus
- Iron fertilization enhanced net community production but not downward particle flux during the Southern Ocean iron fertilization experiment LOHAFEX (2013, methodology): “Weakly silici fi ed diatoms contributed 44% to total phytoplankton POC and aggregated eventually [ Coale et al ., 2004].”
- Biofuels from algae: challenges and potential (2010, background): “In the open oceans, iron is a major limiting nutrient for algal growth, as demonstrated by the induction of algal blooms by the addition of exogenous iron to open oceans [47].”
- Rapid bacterial mineralization of organic carbon produced during a phytoplankton bloom induced by natural iron fertilization in the Southern Ocean (2008, background): “Small- and mesoscale enrichment experiments have clearly identified iron as the primary limiting nutrient for phytoplankton growth (Boyd et al., 2000; Gervais et al., 2002; Coale et al., 2004).”
- Different reactions of Southern Ocean phytoplankton size classes to iron fertilization (2006, background): “The SOFEX North and South experiments showed higher Chl a increases (10- and 20- fold), which were mostly due to the lower prefertilization concentrations (Coale et al. 2004).”