Nicolas Duprey
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View article: Equatorial upwelling of phosphorus drives Atlantic N2 fixation and Sargassum blooms
Equatorial upwelling of phosphorus drives Atlantic N2 fixation and Sargassum blooms Open
The Great Atlantic Sargassum Belt first appeared in 2011 and quickly became the largest interconnected floating biome on Earth. In recent years, Sargassum stranding events have caused substantial ecological and socio-economic impacts in co…
View article: Crustose Coralline Algae as a Proxy for Marine Nitrogen Cycling and Coral Trophic Strategies
Crustose Coralline Algae as a Proxy for Marine Nitrogen Cycling and Coral Trophic Strategies Open
The marine nitrogen (N) cycle plays a central role in regulating ocean productivity, ecosystem structure, and biogeochemical feedbacks on climate. However, our understanding of historical changes in the marine N cycle is limited by the sho…
View article: Seabird-derived nitrogen supply enhances photosynthetic activity in a reef-building coral
Seabird-derived nitrogen supply enhances photosynthetic activity in a reef-building coral Open
View article: Coral photosymbiosis on Mid-Devonian reefs
Coral photosymbiosis on Mid-Devonian reefs Open
View article: Preface: Special Issue on Probing the Open Ocean With the Research Sailing Yacht <i>Eugen Seibold</i> for Climate Geochemistry
Preface: Special Issue on Probing the Open Ocean With the Research Sailing Yacht <i>Eugen Seibold</i> for Climate Geochemistry Open
The 72‐foot sailing yacht Eugen Seibold is a new research platform for contamination‐free sampling of the water column and atmosphere for biological, chemical, and physical properties, and the exchange processes between the two realms. Ult…
View article: Severe cold-water bleaching of a deep-water reef underscores future challenges for Mesophotic Coral Ecosystems
Severe cold-water bleaching of a deep-water reef underscores future challenges for Mesophotic Coral Ecosystems Open
Elevated sea surface temperatures are causing an increase in coral bleaching events worldwide, and represent an existential threat to coral reefs. Early studies of Mesophotic Coral Ecosystems (MCEs) highlighted their potential as thermal r…
View article: Tracing the fate of seabird‐derived nitrogen in a coral reef using nitrate and coral skeleton nitrogen isotopes
Tracing the fate of seabird‐derived nitrogen in a coral reef using nitrate and coral skeleton nitrogen isotopes Open
Seabirds transfer nutrients from the ocean to their nesting island, potentially altering nitrogen (N) cycling within adjacent terrestrial and marine ecosystems. Yet, the processes involved in seabird‐N transfer along the land–sea continuum…
View article: Replication Data for: Tracing the fate of seabird-derived-nitrogen in a coral reef using nitrate and coral skeleton nitrogen isotopes
Replication Data for: Tracing the fate of seabird-derived-nitrogen in a coral reef using nitrate and coral skeleton nitrogen isotopes Open
This dataset presents data collected along a transect sampled on two dates (6th and 9th of July 2019) on the reef flat of Surprise Island in the D'entrecasteaux Reefs, from land to ocean. Samples were also collected in the groundwater lens…
View article: Analytical improvements and assessment of long‐term performance of the oxidation–denitrifier method
Analytical improvements and assessment of long‐term performance of the oxidation–denitrifier method Open
The analysis of the nitrogen (N) isotopic composition of organic matter bound to fossil biomineral structures (BB‐δ 15 N) using the oxidation–denitrifier (O–D) method provides a novel tool to study past changes in N cycling processes. Meth…
View article: Coral carbonate-bound isotopes reveal monsoonal influence on nitrogen sources in Southeastern China's Greater Bay Area from the mid-Holocene until the Anthropocene
Coral carbonate-bound isotopes reveal monsoonal influence on nitrogen sources in Southeastern China's Greater Bay Area from the mid-Holocene until the Anthropocene Open
Most anthropogenic nitrogen (N) reaches coastal waters via rivers carrying increasing loads of sewage, fertilizer, and sediments. To understand anthropogenic N impacts, we need to understand historical N-dynamics before human influence. St…
View article: Coral Photosymbiosis on Mid-Devonian Reefs
Coral Photosymbiosis on Mid-Devonian Reefs Open
The ability of scleractinian corals to thrive in the oligotrophic (low-nutrient, low-productivity) surface waters of the tropical ocean is commonly attributed to their symbiotic relationship with photosynthetic dinoflagellates1,2
View article: Analytical improvements and assessment of long-term performance of the oxidation-denitrifier method
Analytical improvements and assessment of long-term performance of the oxidation-denitrifier method Open
RATIONALEThe analysis of the nitrogen (N) isotopic composition of organic matter bound to fossil biomineral structures (BB-δ 15 N) using the oxidation-denitrifier (O-D) method provides a novel tool to study past changes in N cycling proces…
View article: Tooth enamel nitrogen isotope composition records trophic position: a tool for reconstructing food webs
Tooth enamel nitrogen isotope composition records trophic position: a tool for reconstructing food webs Open
View article: The Flower Garden Banks <i>Siderastrea siderea</i> coral as a candidate Global boundary Stratotype Section and Point for the Anthropocene series
The Flower Garden Banks <i>Siderastrea siderea</i> coral as a candidate Global boundary Stratotype Section and Point for the Anthropocene series Open
The proposed Anthropocene Global Boundary Stratotype Section and Point (GSSP) candidate site of West Flower Garden Bank (27.8762°N, 93.8147°W) is an open ocean location in the Gulf of Mexico with a submerged coral reef and few direct human…
View article: North Flinders Reef (Coral Sea, Australia) <i>Porites</i> sp. corals as a candidate Global boundary Stratotype Section and Point for the Anthropocene series
North Flinders Reef (Coral Sea, Australia) <i>Porites</i> sp. corals as a candidate Global boundary Stratotype Section and Point for the Anthropocene series Open
Corals are unique in the suite of proposed Anthropocene Global Boundary Stratotype Section and Point (GSSP) archives, as living organisms that produce aragonite exoskeletons preserved in the geological record that contain highly accurate a…
View article: Coral Geochemical Records Track Millennial-Scale Ecosystem Change and Resilience in the Tropical Eastern Pacific
Coral Geochemical Records Track Millennial-Scale Ecosystem Change and Resilience in the Tropical Eastern Pacific Open
Along the coastal Tropical Eastern Pacific (TEP), regions of strong seasonal upwelling bring cold, nutrient-rich waters, controlling ecological conditions and sustaining millions of people through large-scale fisheries. The TEP is also imp…
View article: Monsoonal Weakening Has Controlled Coastal N-Cycling in Southeastern China's Greater Bay Area from the Mid-Holocene Until the Anthropocene
Monsoonal Weakening Has Controlled Coastal N-Cycling in Southeastern China's Greater Bay Area from the Mid-Holocene Until the Anthropocene Open
View article: Carbon, nitrogen, and oxygen stable isotopes in modern tooth enamel: A case study from Gorongosa National Park, central Mozambique
Carbon, nitrogen, and oxygen stable isotopes in modern tooth enamel: A case study from Gorongosa National Park, central Mozambique Open
The analyses of the stable isotope ratios of carbon (δ 13 C), nitrogen (δ 15 N), and oxygen (δ 18 O) in animal tissues are powerful tools for reconstructing the feeding behavior of individual animals and characterizing trophic interactions…
View article: Nitrogen isotopic composition of tooth enamel organic matter records trophic position in modern and fossil ecosystems
Nitrogen isotopic composition of tooth enamel organic matter records trophic position in modern and fossil ecosystems Open
Nitrogen isotopes are widely used to study the trophic position of animals in modern food webs, however, their application in the fossil record is severely limited by degradation of organic material during fossilization. In this study, we …
View article: Laboratory Assessment of the Impact of Chemical Oxidation, Mineral Dissolution, and Heating on the Nitrogen Isotopic Composition of Fossil‐Bound Organic Matter
Laboratory Assessment of the Impact of Chemical Oxidation, Mineral Dissolution, and Heating on the Nitrogen Isotopic Composition of Fossil‐Bound Organic Matter Open
Fossil‐bound organic material holds great potential for the reconstruction of past changes in nitrogen (N) cycling. Here, with a series of laboratory experiments, we assess the potential effect of oxidative degradation, fossil dissolution,…
View article: The influence of SST on the loss and development of coral reefs in the Coral Sea from the Miocene to Pliocene
The influence of SST on the loss and development of coral reefs in the Coral Sea from the Miocene to Pliocene Open
<p>The Queensland Plateau in the Coral Sea has one of the best constrained geologic histories of coral reef expansion and demise since the early Miocene. The development coral reefs in the past is not well understood with a number of…
View article: Laboratory Assessment of the Impact of Chemical Oxidation, Mineral Dissolution, and Heating on the Nitrogen Isotopic Composition of Fossil-bound Organic Matter
Laboratory Assessment of the Impact of Chemical Oxidation, Mineral Dissolution, and Heating on the Nitrogen Isotopic Composition of Fossil-bound Organic Matter Open
Earth and Space Science Open Archive This preprint has been submitted to and is under consideration at G-Cubed. ESSOAr is a venue for early communication or feedback before peer review. Data may be preliminary.Learn more about preprints pr…
View article: Laboratory Assessment of the Impact of Chemical Oxidation, Mineral Dissolution, and Heating on the Nitrogen Isotopic Composition of Fossil-bound Organic Matter
Laboratory Assessment of the Impact of Chemical Oxidation, Mineral Dissolution, and Heating on the Nitrogen Isotopic Composition of Fossil-bound Organic Matter Open
Fossil-bound organic material holds great potential for the reconstruction of past changes in nitrogen (N) cycling. Here, with a series of laboratory experiments, we assess the potential effect of oxidative degradation, fossil dissolution,…
View article: Laboratory Assessment of the Impact of Chemical Oxidation, Mineral Dissolution, and Heating on the Nitrogen Isotopic Composition of Fossil-bound Organic Matter
Laboratory Assessment of the Impact of Chemical Oxidation, Mineral Dissolution, and Heating on the Nitrogen Isotopic Composition of Fossil-bound Organic Matter Open
Earth and Space Science Open Archive This preprint has been submitted to and is under consideration at G-Cubed. ESSOAr is a venue for early communication or feedback before peer review. Data may be preliminary.Learn more about preprints pr…
View article: Seabird-Derived Nutrients Supply Modulates the Trophic Strategies of Mixotrophic Corals
Seabird-Derived Nutrients Supply Modulates the Trophic Strategies of Mixotrophic Corals Open
The ability of corals to modulate their nutrition strategy in response to variable nutrient supply remains poorly understood, limiting our understanding of energy flow in coral reef ecosystems and thus our comprehension of their resilience…
View article: Photosymbiosis on a Mid-Devonian Reef: Evidence from Coral-Bound Nitrogen Isotopes
Photosymbiosis on a Mid-Devonian Reef: Evidence from Coral-Bound Nitrogen Isotopes Open
View article: Response to Comment on Trophic strategy and bleaching resistance in reef-building corals
Response to Comment on Trophic strategy and bleaching resistance in reef-building corals Open
We outline best practices for using Stable Isotope Bayesian Ellipses in R analysis to measure symbiotic trophic niches.
View article: Nitrogen isotopes in tooth enamel record diet and trophic level enrichment: Results from a controlled feeding experiment
Nitrogen isotopes in tooth enamel record diet and trophic level enrichment: Results from a controlled feeding experiment Open
View article: Coral reef diversity losses in China’s Greater Bay Area were driven by regional stressors
Coral reef diversity losses in China’s Greater Bay Area were driven by regional stressors Open
Poor water quality driven by increased nutrients is the main cause of coral diversity loss in southern China’s Greater Bay Area.
View article: Trophic strategy and bleaching resistance in reef-building corals
Trophic strategy and bleaching resistance in reef-building corals Open
Heterotrophic corals with large polyps bleach later than autotrophic corals with small polyps.