CV

Nicolas N.Duprey

POSITIONS HELD

Postdoctoral Researcher - 2017/current - Martínez-García Lab, Climate Geochemistry Department, Max Planck Institute for Chemistry, Mainz, Germany.

Postdoctoral Researcher - 2013/2016 - Baker Lab, The SWIRE Institute of Marine Science, School of Biological Sciences, The University of Hong Kong, Hong Kong SAR, China.

EDUCATION

PhD - 2012 - Paleoclimatology and Paleoceanography, Department of Environmental Sciences, Université Pierre et Marie Curie UPMC-Paris 6, Paris, France.

Duprey NN (2012). Variabilité climatique de deux périodes clés de l’Holocène, c. 7000-6000 et 3500-2500 années BP, dans le Pacifique Sud-Ouest à partir de l’analyse d’archives biocarbonatées. Université Pierre et Marie Curie, Paris 6.

MSc - 2009 - Ecology of Littoral Ecosystems, Department of Biology, Université de La Rochelle, La Rochelle, France / Universidad de Costa Rica, San José, Costa Rica.

BSc - 2007 - Biology, Department of Biology, Université de La Rochelle, La Rochelle, France.

CPGE-BCPST 2004-2005 - Classe Préparatoire aux Grandes Écoles - Biologie Chimie Physique & Science de la Terre - Sup&Spé - Lycée Pothier, Orléans, France

PUBLICATIONS

2024

30 – Duprey NN, Foreman AD, Carriquiry JD, Charles CD, Sanchez SC, Vonhof H, Rubach F, Rabenstein R, Rohr M, Reyes-Bonilla H, Marconi D, Sigman DM, Haug GH, Martinez-Garcia A. (2024). Decadal oscillations in the ocean’s largest oxygen-deficient zone. Science, 386(6725). Supplementary Information.

29 - Jung J, Zoppe S, Söte T, Moretti S, Duprey NN, Foreman A, Wald T, Vonhof H, Haug G, Sigman D, Schindler E, Janussen D, Martinez-Garcia A (2024). Coral photosymbiosis on Mid-Devonian reefs. Nature, 1-7.

28 – Foreman AD, Duprey NN contribution équivalente, Yuval M, Dumestre M, Leichliter JN, Rohr MC, Dodwell RCA, Dodwell GAS, Clua EEG, Treibitz T, Martínez-García A (2024). Severe cold-water bleaching of a deep-water reef underscores future challenges for Mesophotic Coral Ecosystems. The Science of the Total Environment, 951(175210), 175210.

27 - Schiebel R, [...] Duprey NN, […] Haug GH (60 co-auteurs). (2024). Preface: Special issue on probing the open ocean with the research sailing yacht Eugen Seibold for climate geochemistry. Journal of Geophysical Research Atmospheres, 129(17).

26 - Choisnard N, Duprey NN equal contribution, Martínez-García A, Houlbrèque F, Thibaut M, Foreman AD, Cuet P, Guillaume MM, Vonhof H, Crutzen PJ, Haug GH, Maguer JF, L’Helguen S, Lorrain A. (2024). Tracing the fate of seabird-derived N in a coral reef using nitrate and coral skeleton stable nitrogen isotopes. Limnology & Oceanography, 69(2), 309-324.

25 - Moretti S, Duprey NN, Foreman AD equal contribution, Arns A, Brömme S, Jung J, Ai XE, Auderset A, Bieler AL, Eck C, Farmer J, Hinnenberg B, Lacerra, M, Leichliter, J, Lüdecke T, Oleynik S, Rubach F, Schmitt M, Vink M, Wald T, Yehudai M, Sigman DM, Martínez-García A. (2023). Analytical improvements and assessment of long-term performance of the oxidation-denitrifier method. Rapid Communications in Mass Spectrometry, 38(1), 1-19.

2023

24 - Cybulski JD, Duprey NN, Thibodeau B, Yasuhara M, Geeraert N, Leonard N, Vonhof H, Martínez-Garcia A, Baker DM. (2023). Monsoon weakening controlled coastal N-cycling in Southeastern China’s Greater Bay Area during the late-Holocene until the modern coastal development wave. Marine Pollution Bulletin, 197, 1–11.

23 - Leichliter, JN, Lüdecke T, Foreman, AD, Bourgon N, Duprey NN, Vonhof H, Souksavatdy V, Bacon A-M, Sigman DM, Tütken T, Martínez-García A (2023). Tooth enamel nitrogen isotope composition records trophic position: a tool for reconstructing food webs. Communications Biology, 6(1), 373.

22 – DeLong KL, Palmer K, Wagner AJ, Weerabaddana MM, Slowey N, Herrmann AD, Duprey NN, Martínez-García A, Jung J, Hajdas I, Rose, NL, Roberts SL, Roberts LR, Cundy AB, Gaca P, Milton JA, Yang H, Turner S D, Huang C-Y, Shen CC, Zinke, J (2023). The Flower Garden Banks Siderastrea siderea coral as a candidate Global boundary Stratotype Section and Point for the Anthropocene series. The Anthropocene Review, 10(1), 225–250.

21 - Zinke J, Cantin NE, DeLong KL, Palmer K, Boom A, Hajdas I, Duprey NN, Martínez-García A, Rose NL, Roberts SL, Yang H, Roberts LR, Cundy AB, Gaca P, Milton JA, Frank G, Cox A, Sampson S, Tyrrell G, Agg M, Turner SD (2023). North Flinders Reef (Coral Sea, Australia) Porites sp. corals as a candidate Global Boundary Stratotype Section and Point for the Anthropocene Series. The Anthropocene Review, 10(1), 201–224.

2022

20 - Lüdecke T, Leichliter JN, Aldeias V, Bamford MK, Biro D, Braun DR, Capelli C, Cybulski JD, Duprey NN, da Silva MJF, Foreman AD. (2022). Carbon, nitrogen, and oxygen stable isotopes in modern tooth enamel: A case study from Gorongosa National Park, central Mozambique. Frontiers in Ecology and Evolution, 10.

19 - Martinez-Garcia A, Jung J, Ai XE, Sigman DM, Auderset A, Duprey NN, Foreman A, Fripiat F, Leichliter J, Lüdecke T, Moretti S,Wald,T. (2022). Laboratory assessment of the impact of chemical oxidation, mineral dissolution, and heating on the nitrogen isotopic composition of fossil‐bound organic matter. Geochemistry, Geophysics, Geosystems, 23(8).

18 - Thibault M, Houlbreque F, Duprey NN, Choisnard N, Gillikin DP, Meunier V, Benzoni F, Ravache A, Lorrain A.(2022). Seabird-Derived Nutrients Supply Modulates the Trophic Strategies of Mixotrophic Corals. Frontiers in Marine Science, 8.

2021

17 - Kim T, Lee JCY, Kang D-H, Duprey NN, Leung KS, Archana A, Baker DM (2021). Modification of fatty acid profile and biosynthetic pathway in symbiotic corals under eutrophication. The Science of the total environment, 145336.

16 - Leichliter JN, Lüdecke T, Foreman AD, Duprey NN, Winkler DE, Kast ER, Vonhof H, Sigman DM, Haug GH, Clauss M, Tuetken T, Martínez-García A. (2020). Nitrogen isotopes in tooth enamel record diet and trophic level enrichment: Results from a controlled feeding experiment. Chemical Geology, 120047.

2020

15 - Cybulski, JD, Husa, SM, Duprey, NN, Mamo, BL, Tsang, TP, Yasuhara, M, Xie, JY, Qiu, JW, Yokoyama, Y, Baker, DM (2020). Coral reef diversity losses in China’s Greater Bay Area were driven by regional stressors. Science Advances, 6(40).

14 - Conti-Jerpe IE, Thompson PD, Wong CWM, Oliveira NL, Duprey NN, Moynihan MA, David M. Baker DM. 2020. Trophic strategy and bleaching resistance in reef-building corals. Science Advances, 6(15).

13 - Geeraert N, Duprey NN, McIlroy S, Thompson PD, Goldstein BR, LaRoche C, Kiho Kim K, Raymundo LJ, Baker DM. 2020. The anthropogenic nitrogen footprint of a tropical lagoon: spatial variability in Padina sp. δ15N values. Pacific Science, 74(1), 19.

12 - Thibault M, Duprey NN, Gillikin DP, Thébault J, Douillet P, Chauvaud L, Amice E, Munaron JM, Lorrain A. 2020. Bivalve δ15N isoscapes provide a baseline for urban nitrogen footprint at the edge of a World Heritage coral reef. Marine Pollution Bulletin.152, 110870.

11 - Duprey NN,Wang XT, Kim T, Cybulski JD,Vonhof HB, Crutzen PJ, Haug GH, Sigman DM, Martínez-García A, Baker DM. 2020. Megacity development and the demise of coastal coral communities: evidence from coral skeleton δ15N records in the Pearl River Estuary.Global Change Biology. 26(3), 1338–1353.

2019

10 - Lachs L, Johari NAM, Le DQ, Safuan CDM, Duprey NN, Tanaka K, Hong TC, Ory NC, Bachok Z, Baker DM, Kochzius M, Shirai K. (2019). Effects of tourism-derived sewage on coral reefs: Isotopic assessments identify effective bioindicators. Marine Pollution Bulletin, 148, 85–96.

2017

9 - Duprey NN, McIlroy SE, Ng TPT, Thompson PD, Kim T, Wong JCY, Wong CWM, Husa SM, Li SMH, Williams GA, Baker DM (2017). Facing a wicked problem with optimism: issues and priorities for coral conservation in Hong Kong. Biology and Conservation, 26(11): 2521–2545.

8 - Duprey NN, Wang XT, Thompson PD, Pleadwell J, Raymundo LJ, Kim K, Sigman DM, Baker DM. (2017), Life and death of a sewage treatment plant recorded in a coral skeleton δ15N record. Marine Pollution Bulletin, 120(1–2):109-116.

7 - Wong CWM, Duprey NN, Baker DM (2017), New Insights on the Nitrogen Footprint of a Coastal Megalopolis from Coral-Hosted Symbiodinium δ15N. Environmental Science and Technology, 51(4):1981-1987.

2016

6 - Duprey NN, Yasuhara M, Baker DM (2016), Reefs of tomorrow: eutrophication reduces coral biodiversity in an urbanized seascape. Global Change Biology, 22:3550–3565.

2015

5 - Duprey NN, Lazareth CE, Dupouy C, Butscher J, Farman R, Maes C, Cabioch G (2015), Calibration of seawater temperature and δ18Oseawater signals in Tridacna maxima’s δ18Oshell record based on in situ data. Coral Reefs, 34:437–450.

2014

4 - Duprey NN, Galipaud JC, Cabioch G, Lazareth CE (2014), Isotopic records from archaeological giant clams reveal a variable climate during the southwestern Pacific colonization ca. 3.0ka BP. Palaeogeography, Palaeoclimatology, Palaeoecology, 404, 97–108.

3 - Ory NC, Dudgeon D, Duprey NN, Thiel M (2014), Effects of predation on diel activity and habitat use of the coral-reef shrimp Cinetorhynchus hendersoni (Rhynchocinetidae). Coral Reefs, 33 (3), 639–650.

2012

2 - Duprey NN, Lazareth CE, Corrège T, Le Cornec F, Maes C, Pujol N, Madeng-Yogo M, Caquineau S, Soares Derome C, Cabioch G (2012b), Early mid-Holocene SST variability and surface-ocean water balance in the southwest Pacific. Paleoceanography, 27 (4).

1 - Duprey NN, Boucher H, Jiménez C (2012a), Digital correction of computed X-radiographs for coral densitometry. Journal of Experimental Marine Biology and Ecology, 438, 84–92.

GRANTS

2024 - Co-I project: FEF OCEANOS France/Costa Rica. Are heterotrophic corals more resistant to bleaching in the Pacific? A stable isotope approach – 18k€

2024 - Co-I project: LEFE CYBER - COmparaison MOdèles et DOnnées et approche combinée δ13C des δ15N des coraux (COMODO) – 17k€

2023 - Co-I project: CACAO – Seabirds and corals : how seabird-derived nitrogen influence nitrogen cycle through time on coral reefs (Nouvelle-Calédonie) – 170 k€

2019-2020 - Co-I project: EC2CO / LEFE - GUANACO - Impact du guano sur le fonctionnement des écosystèmes coralliens – 20k€

2018-2019 - Co-I project: LABEX MER/CORAIL - Impact du guano sur les chaînes trophiques marines et terrestres à Entrecasteaux – 20k€

2017 – PI project : Paul Crutzen Nobel prize fellowship, attribuée par la Société Max Planck. The Anthropocene Era in oceans: where do we draw the line? Insights from stable nitrogen isotopes in high-resolution fossil archives – 90k€

2013 - PI project : financé par le HK Environment and Conservation Fund (ECF). Two centuries of nitrogen pollution in Hong Kong’s coastal waters reconstructed from hard-coral and octocoral δ15N – 50k€

INTERNATIONAL CONFERENCES & SYMPOSIUMS

ORAL PRESENTATIONS

2019

13 - Duprey NN, Martinez-Garcia A, Sanchez SC, Vonhof HB, Charles CD, Carriquiry JD, Sigman DM, Haug GHexploring the influence of climate variability on N-cycling in the equatorial Pacific ocean: insights from CS-δ15N records. PaleoENSO workshop, Belitung, Indonesia (2019).

2018

12 – Duprey NN, Martinez-Garcia A, Foreman, A, Vonhof HB, Crutzen PJ, Haug GH. The anthropogenic N-footprint in the ocean: insights from coral skeleton stable N isotopes records. Anthropocene Working Group Meeting, Mainz, Germany (2018).

11 – Duprey NN, Baker DM, Wang XT, Kim T, Thompson PT, Kim T, Cybulski J, Raymundo L, Pleadwell J, Martinez-Garcia A, Sigman DM, Haug GH. Coral skeletal δ 15 N records reveal long-standing eutrophication of coastal coral reefs. European Conference of Tropical Ecology, Paris, France (2018).

2017

10 - Duprey NN, Martinez-Garcia A, Sanchez S, Correge T, Carriquiry J, Charles C, Haug, G. Exploring the influence of climate variability on nitrogen cycling in the Pacific Ocean from coral stable nitrogen isotopes records: preliminary results, GeoBremen 2017 conference & workshop - Bremen, Germany (2017).

2016

9 - Duprey NN, Wang XT, Kim T, Thompson PD, Pleadwell J, Raymundo L, Kim K, Baker DM. Coral skeletal δ15N records provide a historical perspective on coastal coral reefs eutrophication, International Coral Reef Symposium - ICRS, Honolulu, Hawai’i (2016).

2015

8 - Duprey NN, Wong CWM, Anand A, Conti-Jerpe IE, Kim T, Thompson PD, Wong CY, Yasuhara M, Baker DM. Stable N isotopes reveal the sources of nitrogen affecting Hong Kong’s coral communities, International Conference on Underwater Sciences, Technology and Education - ICUSTE, Hong Kong SAR, China (2015).

7 - Duprey NN, Yasuhara M, Kim T, Li MH, Wong M, Baker DM. Reefs of tomorrow: nutrients drive coral biodiversity in an urbanized seascape. International Conference on Biodiversity, Ecology and Conservation of Marine Ecosystems - BECOME, Hong Kong SAR, China (2015).

2014

6 - Chair of session: Changing Oceans: What Long-lived Marine Organisms Say... Asia-Pacific Coral Reef Symposium - APCRS, Kenting, Taiwan (2014).

5 - Duprey NN, Baker DM, Thompson P, Park HS, Kim T, Raymundo L. Learning from the past: Investigating the anthropogenic impact on A-P reefs since WWII using coral δ15N records. Asia-Pacific Coral Reef Symposium - APCRS, Kenting, Taiwan (2014).

4 - Duprey NN, Baker DM. Coral reefs in the Anthropocene Era: some thoughts about nitrogen pollution. Guest Seminar. University of the Ryukyus, Okinawa, Japan (2014).

3 - Duprey NN, Galipaud JC, Cabioch G, Lazareth CE. The old man and the giant clam: climate variability & prehistoric Human migration in the Pacific. Ocean Science Meeting - OSM. Honolulu, Hawai’i (2014).

2013

2 - Duprey NN, Galipaud JC, Cabioch G, Lazareth CE - The old man and the giant clam: climate variability & prehistoric Human migration in the Pacific. South Pacific Asian Marine Science Symposium - SPAM. Mangilao, Guam (2013).

2012

1 - Duprey NN, Lazareth CE, Corrège T, Le Cornec F, Maes C, Pujol N, Madeng-Yogo M, Caquineau S, Soares Derome C, Cabioch G. Early mid-Holocene SST and SSS variability in the Southwest Pacific. Guest seminar. School of Biological Sciences, The University of Hong Kong, Hong Kong SAR, China (2012).

POSTERS

2011

5 - Duprey NN, Boucher H, Jimenez C - Digital correction of computed X-radiographs for coral densitometry. American Geophysical Union Meeting - AGU, San Francisco, USA (2011).

4 - Duprey NN, Lazareth CE, Cabioch G, Corrège T, Pujol N, LeCornec F, Maes C, Caquineau S, Madeng-Yogo M. Southwest Pacific climate variability at c. 7 6 ka BP: new insights from fossil giant clam Tridacna maxima and massive coral Porites sp. high resolution records. American Geophysical Union Meeting - AGU, San Francisco, USA (2011).

2010

3 - Duprey NN, Jimenez C, Grove C, Cortes J, Acuña J. Cahuita reef, Costa Rica: Environmental reconstruction from growth patterns of the massive coral Siderastrea siderea. International Society for Reef Studies Symposium - ISRS. Wageningen, Netherlands (2010).

2 - Duprey NN, Lazareth CE, Butscher J, Dupouy C, Maes C, Farman R, Cabioch G. Utilisation du bénitier Tridacna maxima comme archive climatique de haute résolution dans le Pacifique Sud-Ouest: calibration des proxies géochimiques. Réunion des Sciences de la Terre - RST. Bordeaux, France (2010).

1 - Duprey NN, Lazareth CE, Butscher J, Dupouy C, Maes C, Farman R, Cabioch G. The giant clam Tridacna maxima, a high-resolution proxy for past climate reconstruction in the South-West Pacific: first stages of the calibration. International Sclerochronology Conference - ISC, Mainz, Germany (2010).

LABORATORY SKILLS

Preparation of coral samples for δ15N analyses (oxidation step) with the denitrifier method (Wang et al. 2015).

Trace elements analyses on carbonates using Inductively Coupled Plasma Mass Spectrometer (ICP-MS).
Preparation of samples for stable isotopes (CN) on EA-IRMS.
Scanning Electron Microscope (SEM) training

Thin sections of giant clam and coral samples
Carbonates micro-sampling using micro-mill devices (ESI New Wave Micromill and Geomill326)
Methyl-mercury analysis using gas chromatography-atomic fluorescence
Incubation of culture plates for Enterococcus count
Living coral tank maintenance
Living coral fragmenting, i.e., nubbins

FIELDWORK SKILLS

SCUBA diver certified: CMAS - 3 > 380 logged dives (1998).
NITROX certified
Emergency Responder – CPR/First Aid.
Emergency Oxygen Provider.
Permis Mer Côtier + Hauturier: French Boat Steering Certificate for motorized pleasure vessel (2005).
Led boat-based sampling expeditions for underwater sampling and monitoring (>4 days, 7 persons).
Led underwater (SCUBA) coral coring operations (pneumatic drill).
Led underwater (SCUBA) sediment coring operations (manual).
Processed coral cores upon return, including cutting and x-raying coral slabs.
Quantified coral cover, mortality, and species identification on hard bottom reef environments using the line transect method (SCUBA).
Alizarin red-S/calcein staining of massive coral and giant clams.
Sediment and seawater sampling for nutrient, pH, particulate suspended matter, sea surface salinity, stable isotopes (N, O) using Niskin sampler and Ekman grab.
Fish otoliths extraction.
Underwater deployment of loggers, cages, coral nurseries/transplants and sediment traps.

TEACHING/PUBLIC OUTREACH

Invited Public Seminar - Some thoughts about the reefs of tomorrow... French Consulate. Hong Kong SAR, China (2015).

Invited Lecture - Carbon and nitrogen stable isotopes in ecology and environmental sciences - course: ENVS 2001 [1 hour]. The University of Hong Kong, Hong Kong SAR, China (2014).

Invited Public Workshop - Reconstructing the climate of the past from corals [4 hours]. COP21 Youth Conference. Lycée Français International de Hong Kong SAR, China (2015).

Course Workshop - Junior Science Institute Ocean Odyssey - course: JSI0048 [4 hours]. The Swire Institute of Marine Science, The University of Hong Kong. Hong Kong SAR, China (2015, 2016).

Course Workshop - Introduction to coral reef ecology and laboratory methods - course: ENVS 2001 [4 hours] The Swire Institute of Marine Science, The University of Hong Kong. Hong Kong SAR, China (2014, 2015, 2016).

Public Workshop - Presentation of the Swire Institute of Marine Science [4 hours] The Swire Institute of Marine Science, The University of Hong Kong. Hong Kong SAR, China (2013, 2014, 2015, 2016).

SAMPLES

PREPARATION

Coral sample preparation room at the Baker Lab (The University of Hong Kong). Stable nitrogen isotopes ratio analyses in coral skeleton requires extremely clean conditions to avoid contamination.

CORAL COVER MEASUREMENT

The measurement of the living coral cover is commonly used by coral reef ecologists to describe a reef and to assess its health. Chuuuk, FSM, 2013. Photo by CF Caballes.

Underwater coral coring in Guam, Marianas - 2014

REVIEWS

International Journal of Climatology
Marine Pollution Bulletin
Geophysical Research Letters
PloS One
Applied Geochemistry
Environmental Science & Technology

PUBLICATIONS