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

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


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

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.





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.



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.


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.




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.


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 δ​15​N 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.



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.


5 - Duprey NN, Lazareth CE, Dupouy C, Butscher J, Farman R, Maes C, Cabioch G (2015), Calibration of seawater temperature and δ​18​O​seawater signals in Tridacna maxima’s δ​18​O​shell​ record based on in situ data. Coral Reefs, 34:437–450.


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.


2Duprey 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.


USD 64,000 - 2013 - Co-Author on the funded project research: Two centuries of nitrogen pollution in Hong Kong’s coastal waters reconstructed from hard-coral and octocoral δ15N. Project funded by the HK Environment and Conservation Fund (ECF). PI: Dr. David M. Baker (Amount: HK$ 498,425)





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).


12Duprey 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).

11Duprey 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).



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).




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).



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).


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).


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).


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).



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).



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).


  • 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


  • SCUBA diver certified: CMAS - 1, >200 logged dives (1998).

  • Emergency Responder – CPR/First Aid (2003, 2013, 2016).

  • Emergency Oxygen Provider (2013, 2016).

  • 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.


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).



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.


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


  • International Journal of Climatology

  • Marine Pollution Bulletin

  • Geophysical Research Letters

  • PloS One

  • Applied Geochemistry

  • Environmental Science & Technology


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