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Because it is very toxic and accumulates in organisms, particularly in fish, mercury is an important pollutant and one of the most studied. Nonetheless we still have an incomplete understanding ofExpand
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Reduced calcification of marine plankton in response to increased atmospheric CO2
The formation of calcareous skeletons by marine planktonic organisms and their subsequent sinking to depth generates a continuous rain of calcium carbonate to the deep ocean and underlying sediments.Expand
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We analyzed the cellular content of C, N, P, S, K, Mg, Ca, Sr, Fe, Mn, Zn, Cu, Co, Cd, and Mo in 15 marine eukaryotic phytoplankton species in culture representing the major marine phyla. All theExpand
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Preparation and chemistry of the artificial algal culture medium aquil
AbstractThe culture medium Aquil has been designed for studying trace metal physiology in algae. We describe recent modifications in the preparation of Aquil and discuss processes that affect itsExpand
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Efficiency of the CO2-concentrating mechanism of diatoms
Diatoms are responsible for a large fraction of CO2 export to deep seawater, a process responsible for low modern-day CO2 concentrations in surface seawater and the atmosphere. Like otherExpand
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The equatorial Pacific Ocean: Grazer-controlled phytoplankton populations in an iron-limited ecosystem1
Experiments were conducted in the equatorial Pacific Ocean to assess the role of Fe and grazing in regulating use of N03- by the phytoplankton community. Nitrate uptake rates in situ were slowExpand
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The Biogeochemical Cycles of Trace Metals in the Oceans
Planktonic uptake of some essential metals results in extraordinarily low concentrations in surface seawater. To sequester or take up these micronutrients, various microorganisms apparently releaseExpand
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The evolutionary inheritance of elemental stoichiometry in marine phytoplankton
Phytoplankton is a nineteenth century ecological construct for a biologically diverse group of pelagic photoautotrophs that share common metabolic functions but not evolutionary histories. InExpand
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A general kinetic model for iron acquisition by eukaryotic phytoplankton
The conventional model of iron uptake in marine eukaryotic phytoplankton—the Fe 9 model—suggests a dependency of uptake rate on the concentration of unchelated iron species (Fe9), and not theExpand
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Distinguishing between extra‐ and intracellular iron in marine phytoplankton.
We demonstrate the utility of the inorganic reductant titanium (III) complexed by citrate and EDTA as a reagent for rapidly dissolving extracellular iron at pH 8 without causing cell breakage orExpand
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