The shape of the oceanic nitracline [PDF]
Biogeosciences, 2015 In most regions of the ocean, nitrate is depleted near the surface by phytoplankton consumption and increases with depth, exhibiting a strong vertical gradient in the pycnocline (here referred to as the nitracline). The vertical supply of nutrients to
M. M. Omand, M. M. Omand, A. Mahadevan
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Phytoplankton growth and microzooplankton grazing in the subtropical Northeast Atlantic.
PLoS ONE, 2013 Dilution experiments were performed to estimate phytoplankton growth and microzooplankton grazing rates during two Lagrangian surveys in inner and eastern locations of the Eastern North Atlantic Subtropical Gyre province (NAST-E). Our design included two
Carlos Cáceres +3 more
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Genomic and metabolic diversity of Marine Group I Thaumarchaeota in the mesopelagic of two subtropical gyres. [PDF]
PLoS ONE, 2014 Marine Group I (MGI) Thaumarchaeota are one of the most abundant and cosmopolitan chemoautotrophs within the global dark ocean. To date, no representatives of this archaeal group retrieved from the dark ocean have been successfully cultured.
Brandon K Swan +12 more
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Frontiers in Marine Science, 2014 Phosphorus is an essential nutrient for all life on earth. In the ocean, the most bioavailable form of phosphorus is inorganic phosphate, but in the extensive subtropical gyres, phosphate concentrations can be chronically low and limit primary ...
Claire eMahaffey +4 more
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Autotrophic Dissolved Organic Phosphorus Uptake Stimulates Nitrogen Fixation in Subtropical Gyres
Geophysical Research LettersDissolved organic phosphorus (DOP) has been identified as a key phosphorus source that supports primary production and microbial nitrogen (N2) fixation.
Yuxin Shen, Wei‐Lei Wang
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The satellite chlorophyll signature of Lagrangian eddy trapping varies regionally and seasonally within a subtropical gyre [PDF]
Ocean ScienceVertical motions of mesoscale ocean eddies modulate the resource environment, productivity, and phytoplankton biomass in the ocean's subtropical gyres. The horizontal circulations can trap or disperse the eddy-driven chlorophyll anomalies, which can be ...
A. E. Jones-Kellett +2 more
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Resonant Forcing of Oceanic and Atmospheric Rossby Waves in (Sub)Harmonic Modes: Climate Impacts
AtmosphereBaroclinic wave resonance, particularly Rossby waves, has attracted great interest in ocean and atmospheric physics since the 1970s. Research on Rossby wave resonance covers a wide variety of phenomena that can be unified when focusing on quasi ...
Jean-Louis Pinault
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Size-fractionated phytoplankton biomass and production in the tropical Atlantic
Scientia Marina, 2011 Two meridional transects were conducted in the tropical and subtropical Atlantic to describe (i) the spatial variability of total and size-fractionated (picophytoplankton and phytoplankton > 2 μm) chlorophyll a (chl a) concentration and primary ...
Enrique Moreno-Ostos +6 more
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Microbial Ecology in the North Pacific Subtropical Gyre
, 2018 The microbial community in the oligotrophic North Pacific Subtropical Gyre is dominated by unicellular microorganisms less than a few micrometers in size. Despite the persistent low nutrient concentrations, phytoplankton growth rates appear near maximal, sustained by the recycling of nutrients with plankton population sizes regulated by processes such ...
Matthew J. Church, Samuel T. Wilson
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Ocean Observing in the North Atlantic Subtropical Gyre [PDF]
Oceanography, 2021 Nicholas Bates, Rodney Johnson
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