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Article
Open AccessPersistent equatorial Pacific iron limitation under ENSO forcing
Projected responses of ocean net primary productivity to climate change are highly uncertain1. Models suggest that the climate sensitivity of phytoplankton nutrient limitation in the low-latitude Pacific Ocean pl...
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Article
Open AccessGlobal analysis of ocean phytoplankton nutrient limitation reveals high prevalence of co-limitation
Nutrient availability limits phytoplankton growth throughout much of the global ocean. Here we synthesize available experimental data to identify three dominant nutrient limitation regimes: nitrogen is limitin...
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Article
Open AccessImplications of increasing Atlantic influence for Arctic microbial community structure
Increasing influence of Atlantic water in the Arctic Ocean has the potential to significantly impact regional water temperature and salinity. Here we use a rDNA barcoding approach to reveal how microbial commu...
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Article
Open AccessIron Biogeochemistry in the High Latitude North Atlantic Ocean
Iron (Fe) is an essential micronutrient for marine microbial organisms, and low supply controls productivity in large parts of the world’s ocean. The high latitude North Atlantic is seasonally Fe limited, but ...
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Article
Nutrient co-limitation at the boundary of an oceanic gyre
Nutrient amendment experiments at the boundary of the South Atlantic gyre reveal extensive regions in which nitrogen and iron are co-limiting, with other micronutrients also approaching co-deficiency; such lim...
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Article
Southern Ocean deep-water carbon export enhanced by natural iron fertilization
The ocean's importance in storing carbon is widely recognized, as is the importance of iron as a limiting nutrient in much of the global ocean. But quantifying the increase in long-term carbon storage in respo...
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Article
Diatom carbon export enhanced by silicate upwelling in the northeast Atlantic
Diatoms are unicellular or chain-forming phytoplankton that use silicon (Si) in cell wall construction. Their survival during periods of apparent nutrient exhaustion enhances carbon sequestration in frontal re...