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Département de Biologie /
Pavillon Alexandre-Vachon
1045, av. de la Médecine, local 2064
Université Laval
Québec (Québec) G1V 0A6
Phone : +1 418 656 2131 ext. 404880


Mathieu Ardyna

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Researcher (CNRS)
Oceanography and phytoplankton ecology

Phone : 418-656-2131 #408176

Research Interests

I am a biological oceanographer interested in understanding phytoplankton dynamics in polar environments. My main research focuses on how environmental drivers and changes are altering phytoplankton phenology, productivity and structure. In both polar regions (i.e., the Arctic and Southern oceans), climate change is drastically affecting the interplay between the atmosphere, the cryosphere and the oceans. My recent work, conducted with collaborators, shows how these fragile polar ecosystems are responding to warmer, more acidic and longer sea-ice free oceans by combining satellite, field and autonomous platform observations.


2018 - 2021
Postdoctoral fellowship - Marie Curie «Outgoing» Fellowship
Stanford University / Sorbonne Université, USA / France

2015 - 2017
Postdoctoral fellowship - CNES Fellowship
Sorbonne Université, France

2010 - 2015
PhD in Oceanography
Université Laval, Canada
Les communautés phytoplanctoniques dans un océan Arctique en mutation: Biogéographie, phénologie, productivité.

2007 - 2010
M.Sc in Oceanography
ISMER (Institut des sciences de la mer) - UQAR, Canada
Influence des facteurs du milieu sur la structure et le fonctionnement des communautés phytoplanctoniques du Haut-Arctique canadien : distinction des régions oligotrophes et eutrophes.

2007 - 2008
M. Sc. Sciences, Mention Oceanography
Centre d'océanologie de Marseille, Université de la Méditerranée (Aix-Marseille II), Marseille, France

2006 - 2007
B. Sc. Environment and marine sciences
Centre d'océanologie de Marseille, Université de la Méditerranée (Aix-Marseille II), Marseille, France

2004 - 2006
Diploma of superior technician of the sea (DTSM)
INTECHMER (CNAM), Cherbourg, France

Research Experience

Researcher (2021 - present)
International Research Laboratory Takuvik (CNRS / ULaval) (IRL 3376)
Université Laval, Canada

Postdoctoral fellowship (2018 - 2021)
Marie Curie «Outgoing» Fellowship - Stanford University / Sorbonne Université
USA / France

Postdoctoral fellowship (2015 - 2017)
CNES Fellowship - Laboratoire d'Océanographie de Villefranche (LOV) / Sorbonne Université


Étudiants-chercheurs étoiles, Fond de recherche du Québec

2014 & 2015
Attestation of excellence, Université Laval

Fond Richard-Bernard fellowship



Chaffron, S., Delage, E., Budinich, M., Vintache, D., Henry, N., Nef, C., Ardyna, M., Zayed, A. A., Junger, P. C., Galand, P. E., Lovejoy, C., Murray, A. E., Sarmento, H., Tara Oceans coordinators, Acinas, S. G., Babin, M., Iudicone, D., Jaillon, O., Karsenti, E., … Eveillard, D. (2021). Environmental vulnerability of the global ocean epipelagic plankton community interactome. Science Advances, 7(35), eabg1921.

Trudnowska E., Lacour L., Ardyna, M., Rogge, A., Irisson, J.-O., Waite, A., Babin, M. & Stemmann, L. (2021). Marine snow morphology reflects the evolution of phytoplankton blooms and determines their subsequent vertical export. Nature Communications.


Ardyna, M. & Arrigo, K.R. (2020). Phytoplankton dynamics in a changing Arctic Ocean. Nature Climate Change.

Ardyna, M., Mundy, C.J., Mayot, N., Matthes, L., Oziel, L., Horvat, C., Leu, E., Assmy, P., Hill, V., Gale, M., Matrai, P., Melnikov, I. & Arrigo, K.R. (2020). Under-ice phytoplankton blooms: shedding light on the ‘invisible’ part of Arctic primary production. Frontiers in Marine Science.

Ardyna, M., Mundy, C.J., Mills, M., Oziel, L., Grondin, P.-L., Lacour, L., Verin, G., van Dikjen, G., Ras, J., Alou, E., Babin, M., Gosselin, M., Tremblay, J.-É. Raimbault, P., Assmy, P., Nicolaus, M., Claustre, H. & Arrigo, K. R. (2020). Environmental drivers of under-ice phytoplankton bloom dynamics in the Arctic Ocean. Elementa: Science of the Anthropocene.

Massicotte, P., Amiraux, R., Amyot, M.P., Archambault, P., Ardyna, M., … Babin, M. (2020). Green Edge ice camp campaigns: understanding the processes controlling the Arctic phytoplankton spring bloom. Earth System Science Data.

Mayot N., Matrai, P., Arjona, A., Bélanger, S., Marchese, C., Jaegler, T., Ardyna, M. & Steele, M. (2020). Springtime export of Arctic sea ice drives the phytoplankton production in the Greenland Sea. Journal of Geophysical Research.

Oziel L., Baudena, A., Ardyna, M., Randelhoff, A., Massicotte, P., Lacour, L., Sallée, J.-B., Ingvaldsen, R., Devred, E. & Babin, M. (2020). Faster Atlantic currents drive poleward expansion of temperate marine species in the Arctic Ocean. Nature Communications.

Sergi S., Baudena, A., Cotté, C., Ardyna, M., Blain, S. & d’Ovidio, F. (2020). Interaction of the Antarctic Circumpolar Current with seamounts fuels moderate blooms but vast foraging grounds for marine predators. Frontiers in Marine Science.


Ardyna, M., Lacour, L., Sergi, S., D’Ovidio, F., Sallée, J.-B., Rembauville, M., Blain, S., Jeandel, C., Schlitzer, R., Tagliabue, A., Arrigo, K.R. & Claustre, H. (2019). Hydrothermal vents trigger massive phytoplankton blooms in the Southern Ocean. Nature Communications.

Lacour, L., Claustre, H., Briggs, N., Ardyna, M. & Dall’Olmo, G. (2019). Intra-seasonal dynamics of the mixed layer pump in the North Atlantic Subpolar Gyre: a Bio-Argo float approach. Global Biogeochemical Cycles.

Gregory A.C., Zayed, A.A., Conceição-Neto, N., Temperton, B., Bolduc, B., Alberti, A., Ardyna, M., Arkhipova, K., Cruaud, C., Dimier, C., Ferland, J., Kandels-Lewis, S., Liu, Y., Marec, C., Pesant, S., Picheral, M., Pisarev, S., Poulain, J., Tremblay, J.-É., Vik, D. & Tara Oceans coordinators, Babin, M., Bowler, C., Dutilh, B.E., Iudicone, D., Karp-Boss, L., Roux, S., Sunagawa, S., Wincker, P. & Sullivan, M.B. (2019). Marine viral macro- and micro-diversity from pole to pole. Cell.


Hill, V., Ardyna, M., Lee, S.H. & Varela, D. (2018). Decadal trends in phytoplankton production in the Pacific Arctic Region from 1950 to 2012. Deep Sea Research Part 2.

Joli, N., Gosselin, M., Ardyna, M., Babin, M., Tremblay, J.-É., Onda, D.F. & Lovejoy, C. (2018). Need for focus on microbial species following ice melt and changing freshwater regimes in a Janus Arctic Gateway. Scientific Report.


Ardyna, M., Claustre, H., Sallée, J.-B., D’Ovidio, F., Gentili, B., van Dijken, G., D’Ortenzio, F. & Arrigo, K.R. (2017). Delineating environmental control of phytoplankton productivity and phenology in the Southern Ocean Geophysical Research Letters.

Ardyna, M., Babin, M., Devred, E., Forest, A., Raimbault, P., Gosselin, M. & Tremblay, J.-É. (2017). Shelf-basin gradients shape ecological phytoplankton niches and community composition in the coastal Arctic Ocean (Beaufort Sea). Limnology and Oceanography.

Lacour L., Ardyna, M., K. Stec, K., Claustre, H., Prieur, L., Ribera D’Alcala, M. & Iudicone, D. (2017). Unexpected winter phytoplankton blooms in the North Atlantic subpolar gyre. Nature Geoscience.

Blais, M., Ardyna, M., Gosselin, M., Dumont, D., Bélanger, S., Tremblay, J.-É., Gratton, Y., Marchese, C. & Poulin, M. (2017). Contrasting interannual changes in phytoplankton productivity and community structure in the coastal Canadian Arctic Ocean. Limnology and Oceanography.

Rembauville M., Briggs, N., Ardyna, M., Uitz, J., Penkerc’ch, C., Poteau, A., Claustre, H. & Blain, S. (2017). Plankton assemblage estimated from BGC-Argo floats in the Southern Ocean. Journal of Geophysical Research.

Oziel L., Neukermans, G., Ardyna, M., Lancelot, C., Tison, J-L., Wassmann, P., Ruiz-Pino, D., Sirven, J. & Gascard, J. C. (2017). Role for Atlantic inflows and sea ice loss on shifting phytoplankton blooms in the Barents Sea. Journal of Geophysical Research.

Simo Matchim, A.G., Gosselin, M., Poulin, M., Ardyna, M. & Lessard, S. (2017). Summer and fall distribution of phytoplankton in relation to environmental variables in Labrador fjords, northeastern Canada, with a wink to Phaeocystis pouchetii. Marine Ecology Progress Series.

Bouchard-Marmen M., Kenchington, E., Ardyna, M. & Archambault, P. (2017). Influence of seabird colonies and other environmental variables on benthic community structure, Lancaster Sound Region, Canadian Arctic. Journal Marine Systems.


Babin, M., Bélanger, S., Ellinsten, I., Forest, A., Le Fouest, V., Lacour, T., Ardyna, M. & Slagstad, D. (2015). Estimation of primary production in the Arctic Ocean using ocean colour remote sensing and coupled physical-biological models: strengths, limitations and how they compare. Progress in Oceanography.

Lee, Y., Matrai, P., Friedrichs, M., Saba, V., Antoine, D., Ardyna, M., Asanuma, I., Babin, M., Bélanger, S., Benoît-Gagné, M., Devred, E., Fernández-Méndez, M., Gentili, B., Hirawake, T., Kang, S.-H., Kameda, T., Katlein, C., Lee, S., Lee, Z., Mélin, F., Scardi, M., Smyth, T., Tang, S., Turpie, K., Waters, K. & Westberry, T. (2015). An assessment of phytoplankton primary productivity in the Arctic Ocean from satellite ocean color/in situ chlorophyll-a based models. Journal of Geophysical Research.


Ardyna, M., Babin, M., Gosselin, M., Devred, E., Rainville, L. & Tremblay, J.-É. (2014). Recent Arctic Ocean sea-ice loss allows novel fall phytoplankton blooms. Geophysical Research Letters, 41.


Ardyna, M., Babin, M., Gosselin, M., Devred, E., Bélanger, S., Matsuoka, A. & Tremblay, J.-É. (2013). Parameterization of vertical chlorophyll a in the Arctic Ocean: Impact of the subsurface chlorophyll maximum on regional, seasonal and annual primary production estimates. Biogeosciences.


Ardyna, M., Gosselin, M., Michel, C., Poulin, M. & Tremblay, J.-É. (2011). Environmental forcing of phytoplankton community structure and function in the Canadian High Arctic: contrasting oligotrophic and eutrophic regions. Marine Ecology Progress Series.

Forest A., Tremblay, J.-É., Gratton, Y., Martin, J., Gagnon, J., Darnis, G., Sampei, M., Fortier, L., Ardyna, M., Gosselin, M., Hattori, H., Nguyen, D., Maranger, R., Vaqué, R., Marrasé, C., Pedrós-Alió, C., Sallon, A., Michel, C., Kellogg, C., Deming, J., Shadwick, E., Thomas, H., Link, H., Archambault, P. & Piepenburg, D. (2011). Biogenic carbon flows through the planktonic food web of the Amundsen Gulf (Arctic Ocean): A synthesis of field measurements and inverse modeling analyses. Progress in Oceanography.

May, I., Carlson, D., Ardyna, M., Geoffroy, M. & Heikkilä, M. (2011). Using new technologies to make sciences more accessible and transparent to the general public. Polar Research.

Book chapters:

Gosselin M., Mundy, C.J., Ardyna, M., Belt, S., Brown, T., Comeau, A., Larouche, P., Font, E.A., Lovejoy, C., Massé, G., Medrinal, E., Nozais, C., Philippe, B., Poulin, M., Sallon, A., Roy, S., Terrado, R. & Thaler, M. (2012). Light, nutrients and primary production, dans: D. Barber, Tjaden, T., Leitch, D., Barber, L. & Chan, W. (Eds.). On the edge: From knowledge to action during the Fourth International Polar Year Circumpolar Flaw Lead (CFL) system study (2007-2008). University of Manitoba, Winnipeg, Manitoba.