Chemical oceanography
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An updated version of the global interior ocean biogeochemical data product, GLODAPv2.2020 Open
The Global Ocean Data Analysis Project (GLODAP) is a synthesis effort providing regular compilations of surface-to-bottom ocean biogeochemical data, with an emphasis on seawater inorganic carbon chemistry and related variables determined t…
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Neodymium in the oceans: a global database, a regional comparison and implications for palaeoceanographic research Open
The neodymium (Nd) isotopic composition of seawater has been used extensively to reconstruct ocean circulation on a variety of time scales. However, dissolved neodymium concentrations and isotopes do not always behave conservatively, and q…
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Enrichment of Saccharides and Divalent Cations in Sea Spray Aerosol During Two Phytoplankton Blooms Open
Sea spray aerosol (SSA) is a globally important source of particulate matter. A mesocosm study was performed to determine the relative enrichment of saccharides and inorganic ions in nascent fine (PM2.5) and coarse (PM10-2.5) SSA and the s…
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A Global Model for Methylmercury Formation and Uptake at the Base of Marine Food Webs Open
Monomethylmercury (CH 3 Hg) is the only form of mercury (Hg) known to biomagnify in food webs. Here we investigate factors driving methylated mercury [MeHg = CH 3 Hg + (CH 3 ) 2 Hg)] production and degradation across the global ocean and u…
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Overview of the mechanisms that could explain the ‘Boundary Exchange’ at the land–ocean contact Open
Land to ocean transfer of material largely controls the chemical composition of seawater and the global element cycles. Oceanic isotopic budgets of chemical species, macro- and micronutrients (e.g. Nd, Sr, Si, Mg, Zn, Mo and Ni) have revea…
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The Relationships Between Dissolved Zinc and Major Nutrients Phosphate and Silicate Along the GEOTRACES GA02 Transect in the West Atlantic Ocean Open
Dissolved zinc (Zn) has a nutrient‐type distribution in the ocean that more closely resembles the distribution of silicate (Si) than phosphate (PO 4 ). However, Zn is a trace‐nutrient and mostly present in the organic fraction of phytoplan…
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Nutrient supply controls particulate elemental concentrations and ratios in the low latitude eastern Indian Ocean Open
Variation in ocean C:N:P of particulate organic matter (POM) has led to competing hypotheses for the underlying drivers. Each hypothesis predicts C:N:P equally well due to regional co-variance in environmental conditions and biodiversity. …
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Marine isoprene production and consumption in the mixed layer of the surface ocean – a field study over two oceanic regions Open
Parameterizations of surface ocean isoprene concentrations are numerous, despite the lack of source/sink process understanding. Here we present isoprene and related field measurements in the mixed layer from the Indian Ocean and the easter…
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Insights into the bioavailability of oceanic dissolved Fe from phytoplankton uptake kinetics Open
Phytoplankton growth in large parts of the world ocean is limited by low availability of dissolved iron (dFe), restricting oceanic uptake of atmospheric CO2. The bioavailability of dFe in seawater is however difficult to appraise since it …
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Insights Into the Major Processes Driving the Global Distribution of Copper in the Ocean From a Global Model Open
Copper (Cu) is an unusual micronutrient as it can limit primary production but can also become toxic for growth and cellular functioning under high concentrations. Cu also displays an atypical linear profile, which will modulate its availa…
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A meta-analysis on environmental drivers of marine phytoplankton C : N : P Open
The elemental stoichiometry of marine phytoplankton plays a critical role in global biogeochemical cycles through its impact on nutrient cycling, secondary production, and carbon export. Although extensive laboratory experiments have been …
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Effect of hydrological variability on the biogeochemistry of estuaries across a regional climatic gradient Open
Given projected changes in river flow to coastal regions worldwide due to climate change and increasing human freshwater demands, it is necessary to determine the role hydrology plays in regulating the biogeochemistry of estuaries. A clima…
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Marine Community Metabolomes Carry Fingerprints of Phytoplankton Community Composition Open
Microscopic phytoplankton transform 100 million tons of inorganic carbon into thousands of different organic compounds each day. The structure of each chemical is critical to its biological and ecosystem function, yet the diversity of biom…
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The Biogeochemistry of Electroactive Humic Substances and Its Connection to Iron Chemistry in the North East Atlantic and the Western Mediterranean Sea Open
We present the zonal distribution of electroactive humic‐like substances (eHS) along a section from Offshore Portugal in the North East Atlantic to the Sicily Channel in the Mediterranean Sea. The concentrations were normalized to Suwannee…
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Sources and Sinks of Isoprene in the Global Open Ocean: Simulated Patterns and Emissions to the Atmosphere Open
The ocean is a source of isoprene to the atmosphere. Although their global estimates are relatively low compared with the terrestrial source, these emissions have an influence on atmospheric chemistry. The lack of knowledge about the sourc…
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Iron sources alter the response of Southern Ocean phytoplankton to ocean acidification Open
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 578:35-50 (2017) - DOI: https://doi.org/10.3…
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Impacts of Aerosol Copper on Marine Phytoplankton: A Review Open
Atmospheric deposition brings both nutrients and toxic components to the surface ocean, resulting in important impacts on phytoplankton. Field and lab studies have been done on the iron (Fe) fertilization on marine phytoplankton. However, …
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The influence of Arctic Fe and Atlantic fixed N on summertime primary production in Fram Strait, North Greenland Sea Open
Climate change has led to a ~ 40% reduction in summer Arctic sea-ice cover extent since the 1970s. Resultant increases in light availability may enhance phytoplankton production. Direct evidence for factors currently constraining summertim…
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Sphagnum-dominated bog systems are highly effective yet variable sources of bio-available iron to marine waters Open
Iron is a micronutrient of particular interest as low levels of iron limit primary production of phytoplankton and carbon fluxes in extended regions of the world's oceans. Sphagnum-peatland runoff is extraordinarily rich in dissolved humic…
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Distribution and Drivers of Marine Isoprene Concentration across the Southern Ocean Open
Isoprene is a biogenic trace gas produced by terrestrial vegetation and marine phytoplankton. In the remote oceans, where secondary aerosols are mostly biogenic, marine isoprene emissions affect atmospheric chemistry and influence cloud fo…
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Exploring the Potential Role of Terrestrially Derived Humic Substances in the Marine Biogeochemistry of Iron Open
There is a widely recognized link between iron bioavailability and phytoplankton growth in large tracts of the World Ocean. Iron bioavailability is thus pivotal to the removal of atmospheric carbon via the ocean’s ‘biological pump.’ To eva…
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The impacts of iron limitation and ocean acidification on the cellular stoichiometry, photophysiology, and transcriptome of <i>Phaeocystis antarctica</i> Open
Phaeocystis antarctica is an integral player of the phytoplankton community of the Southern Ocean (SO), the world's largest high‐nutrient low‐chlorophyll region, and faces chronic iron (Fe) limitation. As the SO is responsible for 40% of a…
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Effectiveness of Chemical Oxygen Demand as an Indicator of Organic Pollution in Aquatic Environments Open
The chemical oxygen demand (COD) is an essential indicator of organic pollution that represents the amount of bulk carbon in water. COD is strongly correlated with nutrient cycles and other pollutants in the environment, but it has a limit…
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Southern Ocean Phytoplankton Stimulated by Wildfire Emissions and Sustained by Iron Recycling Open
Large ash plumes emitted by the 2019–2020 Australian wildfires were associated with a widespread phytoplankton bloom in the iron‐limited Pacific sector of the Southern Ocean. In this study, we used satellite observations and aerosol reanal…
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Sensitive Determination of the Dissolved Phosphate Pool for an Improved Resolution of Its Vertical Variability in the Surface Layer: New Views in the P-Depleted Mediterranean Sea Open
An accurate understanding of the biogeochemistry of dissolved phosphate pool in the upper waters of P-depleted oceanic regions is constrained by the low sensitivity of routine phosphate measurements. In this study, by using the sensitive L…
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Aerosol Iron from Metal Production as a Secondary Source of Bioaccessible Iron Open
Atmospheric iron (Fe) from anthropogenic, lithogenic, and pyrogenic sources contributes to ocean fertilization, climate change, and human health risk. However, significant uncertainties remain in the source apportionment due to a lack of s…
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Main drivers of transparent exopolymer particle distribution across the surface Atlantic Ocean Open
Transparent exopolymer particles (TEPs) are a class of gel particles, produced mainly by microorganisms, which play important roles in biogeochemical processes such as carbon cycling and export. TEPs (a) are colonized by carbon-consuming m…
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Constraints on the Cycling of Iron Isotopes From a Global Ocean Model Open
Although iron (Fe) is a key regulator of primary production over much of the ocean, many components of the marine iron cycle are poorly constrained, which undermines our understanding of climate change impacts. In recent years, a growing n…
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Dissolved organic nutrients at the interface of fresh and marine waters: flow regime changes, biogeochemical cascades and picocyanobacterial blooms—the example of Florida Bay, USA Open
The availability of dissolved inorganic and organic nutrients and their transformations along the fresh to marine continuum are being modified by various natural and anthropogenic activities and climate-related changes. Subtropical central…
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Mediterranean nascent sea spray organic aerosol and relationships with seawater biogeochemistry Open
The organic mass fraction from sea spray aerosol (SSA) is currently a subject of intense research. The majority of this research is dedicated to measurements in ambient air. However a number of studies have recently started to focus on nas…