Research Gate: https://www.researchgate.net/profile/Remi-Amiraux

Research Interests

Characterize the influence of environmental factors and degradation processes on the modulation of sympagic-pelagic-benthic coupling in the Arctic. The expected results will be applicable to many other oceanic regions and will allow to evaluate the impact of climate change on carbon transfers from the sympagic/pelagic compartment to the benthic compartment.

Education

2017
PhD in environmental chemistry and microbiology
Mediterranean Institute of Oceanography, CNRS & Aix-Marseille University, France
Ice biota degradation in the Arctic environment: Impact of bacterial stress state on this material's preservation and burial

2014
Master's degree in marine biogeochemistry and physics
Mediterranean Institute of Oceanography, CNRS & Aix-Marseille University, France
Effects of temperature and irradiance on the photo-degradation state of killed phytoplankton

2012
Bachelor's degree in biology, chemistry and ecology
Paris-Sud XI, Orsay, France

Research Experience

Scientific Researcher (CRCN) (2023/10 - present)
Takuvik IRL3376, Centre National de la Recherche Scientifique (CNRS), Section 19 : Système Terre : enveloppes superficielles
Université Laval (Canada)

Adjunct professor (2023/10 - present)
Takuvik IRL3376, Centre National de la Recherche Scientifique (CNRS), Biologie department
Université Laval (Canada)

Postdoctoral fellowship (2023 - 2023/09)
Dr J. Gigault, Dr B. Moriceau
Université Laval (Canada) & Université Bretagne Occidentale (France)
Ice biota degradation in the Arctic environment: Impact of bacterial stress state on this material's preservation and burial

Postdoctoral fellowship (2022)
Prof. C.-J. Mundy
University of Manitoba, Canada
Tracing carbon flow and trophic structure of an Arctic food web using highly branched isoprenoids and stable isotope analysis

Postdoctoral fellowship (2019 - 2021)
Prof. J.-E. Tremblay, Prof. P. Archambault, Dr M. Lemire, Dr B. Moriceau, Dr L. Memery
Université Laval (Canada) & Université Bretagne Occidentale (France)
Impact of climate change on the nutritional quality of traditional Inuit foods: Serripes groenlandicus and Mya truncata (Bivalvia)

Postdoctoral fellowship (2018)
Prof. S. T. Belt
Plymouth University (United Kingdom)
Temporal evolution of IP25 and other highly branched isoprenoid lipids in sea ice and the underlying water column during an Arctic melting season

Scientific Leadership

ERC editor (2022 - present)
at Arctic Science

Session chair (2022)
at the ArcticNet Annual Scientific Meeting
Toronto, Canada

Invited speaker (2022)
at the GRC-Organic geochemistry
New Hampshire, United States

Awards

2022
D.G. and V.E. Barber Memorial Fellowship in Arctic Research - 10K
University of Manitoba

2020
Fonds de Recherche du Québec: Nature et Technologies (FRQNT) mobility grant

2020
Sentinel North excellence postdoctoral scholarship

2019
Sentinel North excellence postdoctoral scholarship

2019
Brittany Loire University excellence postdoctoral scholarship

2018
PhD award from Aix-Marseille University

2015
Ec2Co project entitled « Micromar »

2014 - 2017
Ministerial excellence grants

Publications

2022

Amiraux, R.., Mundy, C. J., Pierrejean, M., Niemi, A., Hedges, K. J., Brown, T. A., Ehn, J. K., Elliott, K. H., Ferguson, S. H., Fisk, A. T., Gilchrist, G., Harris, L. N., Iken, K., Jacobs, K. B., Johnson, K. F., Kuzyk, Z. A., Limoges, A., Loewen, T. N., Love, O. P., … Yurkowski, D. J. (2023). Tracing carbon flow and trophic structure of a coastal Arctic marine food web using highly branched isoprenoids and carbon, nitrogen and sulfur stable isotopes. Ecological Indicators, 147, 109938. https://doi.org/10.1016/j.ecolind.2023.109938

Amiraux, R.., Yurkowski, D. J., Archambault, P., Pierrejean, M., & Mundy, C. J. (2023). Top predator sea stars are the benthic equivalent to polar bears of the pelagic realm. Proceedings of the National Academy of Sciences, 120(1), e2216701120. https://doi.org/10.1073/pnas.2216701120

Koch, C. W., Brown, T. A., Amiraux, R.., Ruiz-Gonzalez, C., MacCorquodale, M., Yunda-Guarin, G. A., Kohlbach, D., Loseto, L. L., Rosenberg, B., Hussey, N. E., Ferguson, S. H., & Yurkowski, D. J. (2023). Year-round utilization of sea ice-associated carbon in Arctic ecosystems. Nature Communications, 14(1), 1964. https://doi.org/10.1038/s41467-023-37612-8

Yurkowski, D. J., McCulloch, E., Ogloff, W. R., Johnson, K. F., Amiraux, R.., Basu, N., Elliott, K. H., Fisk, A. T., Ferguson, S. H., Harris, L. N., Hedges, K. J., Jacobs, K., Loewen, T. N., Matthews, C. J. D., Mundy, C. J., Niemi, A., Rosenberg, B., Watt, C. A., & McKinney, M. A. (2023). Mercury accumulation, biomagnification, and relationships to δ13C, δ15N and δ34S of fishes and marine mammals in a coastal Arctic marine food web. Marine Pollution Bulletin, 193, 115233. https://doi.org/10.1016/j.marpolbul.2023.115233

2022

Amiraux, R.., Lavaud, J., Cameron-Bergeron, K., Matthes, L.C., Peeken, I., Mundy, C.J., Babb, D., Tremblay, J-É. (2022). Content in fatty acids and carotenoids in phytoplankton blooms during the seasonal sea ice retreat in Hudson Bay Complex, Canada. Elementa Science of the Anthropocene 10(1). https://doi.org/10.1525/elementa.2021.00106

Bruyant, F., Amiraux, R., Amyot, M-P., Archambault, P., Artigue, L., Bardedo de Freitas, L., Bécu, G., Bélanger, S., Bourgain, P., Bricaud, A. (2022). The Green Edge cruise: Understanding the onset, life and fate of the Arctic phytoplankton spring bloom. Earth System Science Data Discussions: 1-47. https://doi.org/10.5194/essd-2022-41

Rontani J-F., Lalande C., Vilgrain L., Vaultier F., Amiraux, R. (2022). Preservation of sympagic algal material in surficial sediments of the central and eastern Baffin Bay: a result of its high bactericidal hydroperoxide and free fatty acid content. Marine chemistry 247: 104177. https://doi.org/10.1016/j.marchem.2022.104177

2021

Amiraux, R., Bonin, P., Burot, C., Rontani, J-F. (2021). Use of Stress Signals of Their Attached Bacteria to Monitor Sympagic Algae Preservation in Canadian Arctic Sediments. Microorganisms 9(12): 2626. https://doi.org/10.3390/microorganisms9122626

Amiraux, R., Rontani, J-F., Armougom, F., Frouin, E., Babin, M., Artigue, L., Bonin, P. (2021). Bacterial diversity and lipid biomarkers in sea ice and sinking particulate organic material during the melt season in the Canadian Arctic. Elementa: Science of the Anthropocene 9(1). https://doi.org/10.1525/elementa.2019.040

Burot, C., Amiraux, R., Bonin, P., Guasco, S., Babin, M., Joux, F., Marie, D., Vilgrain, L., Heipieper, HJ., Rontani, J-F. (2021). Viability and stress state of bacteria associated with primary production or zooplankton-derived suspended particulate matter in summer along a transect in Baffin Bay (Arctic Ocean). Science of The Total Environment 770: 145252. https://doi.org/10.1016/j.scitotenv.2021.145252

Rontani, J-F., Amiraux, R., Smik, L., Wakeham, SG., Paulmier, A., Vaultier, F., Sun-Yong, H., Jun-Oh, M., Belt, ST. (2021). Type II photosensitized oxidation in senescent microalgal cells at different latitudes: Does low under-ice irradiance in polar regions enhance efficiency? Science of The Total Environment 779: 146363. https://doi.org/10.1016/j.scitotenv.2021.146363

2020

Amiraux, R., Archambault, P., Moriceau, B., Lemire, M., Babin, M., Memery, L., Massé, G., Tremblay, J-E. (2020). Efficiency of sympagic-benthic coupling revealed by analyses of n-3 fatty acids, IP25 and other highly branched isoprenoids in two filter-feeding Arctic benthic molluscs: Mya truncata and Serripes groenlandicus. Organic geochemistry: 104160. https://doi.org/10.1016/j.orggeochem.2020.104160

Amiraux, R., Burot, C., Bonin, P., Guasco, S., Babin, M., Rontani, J-F. (2020). Stress factors resulting from the Arctic vernal sea ice melt: impact on the viability of the bacterial communities associated to sympagic algae. Elementa Science of the Anthropocene 8 (1) : 076. https://doi.org/10.1525/elementa.076

Massicotte, P., Amiraux, R., Amyot, M-P., Archambault, P., Ardyna, M., Laurent, A., Artigue, L., Aubry, C., Ayotte, P., Bécu, G. et al., (2020). Green Edge ice camp campaigns: understanding the processes controlling the under-ice Arctic phytoplankton spring bloom. Earth System Science Data 12(1): 151-176. https://doi.org/10.5194/essd-12-151-2020

Yunda-Guarin, G., Brown, TA., Michel, LN., Saint-Béat, B., Amiraux, R., Nozais, C., Archambault, P. (2020). Reliance of deep-sea benthic macrofauna on ice-derived organic matter highlighted by multiple trophic markers during spring in Baffin Bay, Canadian Arctic. Elementa Science of the Anthropocene 8 (1): 047. https://doi.org/10.1525/elementa.2020.047

2019

Amiraux, R., Smik, L., Köseoğlu, D., Rontani, J-F., Galindo, V., Grondin, P-L., Babin, M., Belt, ST. (2019). Temporal evolution of IP25 and other highly branched isoprenoid lipids in sea ice and the underlying water column during an Arctic melting season. Elementa Science of the Anthropocene 7(1). https://doi.org/10.1525/elementa.377

2018

Rontani, J-F., Amiraux, R., Lalande, C., Babin, M., Kim, H-R., Belt, ST. (2018). Use of palmitoleic acid and its oxidation products for monitoring the degradation of ice algae in Arctic waters and bottom sediments. Organic geochemistry 124: 88-102. https://doi.org/10.1016/j.orggeochem.2018.06.002

Rontani, J-F., Belt, ST., Amiraux, R.. (2018). Biotic and abiotic degradation of the sea ice diatom biomarker IP25 and selected algal sterols in near-surface Arctic sediments. Organic geochemistry 118: 73-88. https://doi.org/10.1016/j.orggeochem.2018.01.003

2017

Amiraux, R., Belt, ST., Vaultier, F., Galindo, V., Gosselin, M., Bonin, P., Rontani, J-F. (2017). Monitoring photo-oxidative and salinity-induced bacterial stress in the Canadian Arctic using specific lipid tracers. Marine Chemistry 194: 89-99. http://dx.doi.org/10.1016/j.marchem.2017.05.006

Rontani, J-F., Galeron, M-A., Amiraux, R., Artigue, L., Belt, ST. (2017). Identification of di- and triterpenoid lipid tracers confirms the significant role of autoxidation in the degradation of terrestrial vascular plant material in the Canadian Arctic. Organic geochemistry 108: 43-50. https://doi.org/10.1016/j.orggeochem.2017.03.011

2016

Amiraux, R., Jeanthon, C., Vaultier, F., Rontani, JF. (2016). Paradoxical effects of temperature and solar irradiance on the photodegradation state of killed phytoplankton. Journal of phycology 52(3): 475-485. https://doi.org/10.1111/jpy.12410

Rontani, J-F., Belt, ST., Brown, TA., Amiraux, R., Gosselin, M., Vaultier, F., Mundy, CJ. (2016). Monitoring abiotic degradation in sinking versus suspended Arctic sea ice algae during a spring ice melt using specific lipid oxidation tracers. Organic geochemistry 98: 82-97. https://doi.org/10.1016/j.orggeochem.2016.05.016

2015

Galeron, M-A., Amiraux, R., Charriere, B., Radakovitch, O., Raimbault, P., Garcia, N., Lagadec, V., Vaultier, F., Rontani, J-F. (2015). Seasonal survey of the composition and degradation state of particulate organic matter in the Rhône River using lipid tracers. Biogeosciences 12: 1431-1446. https://doi.org/10.5194/bg-12-1431-2015

Petit, M., Bonin, P., Amiraux, R., Michotey, V., Guasco, S., Armitano, J., Jourlin-Castelli, C., Vaultier, F., Méjean, V., Rontani, J-F. (2015). Dynamic of bacterial communities attached to lightened phytodetritus. Environmental Science and Pollution Research 22(18): 13681-13692. https://doi.org/10.1007/s11356-015-4209-0