Emma MICHAUD
bioturbation / biogeochemical fluxes / functional ecology / benthic ecology / biodiversity
CNRS
Copyright : Laboratoire LEMAR- 2018
Assignment
LEMAR laboratory
Discovery
Contact
(+33)2 98 49 87 75
Links
Researchgate :
I study the effects of bioturbation activities by benthic invertebrates on the geochemical characteristics and biogeochemical fluxes of coastal sediments. Due to the strong natural and anthropogenic constraints affecting coastal environments, I am interested byt the impacts of benthic biodiversity changes within communities on the bioturbation activities. I use a biodiversity functional approach. I have chosen to address my scientific questions inl ecosystems storing large quantities of carbon (e.g. mangroves, estuaries, fjords) where the bioturbation activities modify this burial and/or OM degradation processes. I work both through experimental approaches in the laboratory (microcosms) or in the field (benthic mesocosms), but also through observations during fieldworks in coastal environments. I am using advanced technologies for 2D or 3D analysis and observation of the sedimentary matrix (planar Optodes, CT-Scan X-rays, Drone, photogrammetry, remote sensing…) in working closely with chemists, physicists and engineers colleagues, in order to integrate in my works the spatial heteogeneity of the studied areas, from micro to macro-scale.
I have been coordinating for a few years various national and international programs (ANR projects, EC2CO, GDR LIGA) about the functioning of mangrove ecosystems, mainly on the French Guiana coast whose dynamics under Amazonian influence makes it a very original case study, and I strongly participate in projects on other types of French Over-seas mangroves aiming to study the vulnerability of these environments to various pressures.
Within Lemar, I co-manage with my colleague S. Petek (IRD), the transverse axis “Lemar in the South” and I am involved in different committees locally within IUEM and Isblue.
Publications within international peer review journals since 2010
355235
ACL
michaud
items
1
apa
0
date
desc
1
Michaud, E.
197260
https://www-iuem.univ-brest.fr/lemar/wp-content/plugins/zotpress/
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Cepeda, D., Sanchez, N., Spedicato, A., Michaud, E., & Zeppilli, D. (2024). Environmental drivers modelling the mangrove Kinorhyncha community along an urban-to-natural gradient in French Guiana (western Atlantic Ocean). FRONTIERS IN MARINE SCIENCE, 11, 1342763. https://doi.org/10.3389/fmars.2024.1342763 Cite
Raimonet, M., Ragueneau, O., Soetaert, K., Khalil, K., Leynaert, A., Michaud, E., Moriceau, B., Rabouille, C., & Memery, L. (2023). Benthic contribution to seasonal silica budgets in two macrotidal estuaries in North-Western France. FRONTIERS IN MARINE SCIENCE, 10, 1269142. https://doi.org/10.3389/fmars.2023.1269142 Cite
Serafim, T. S. G., de Almeida, M. G., Thouzeau, G., Michaud, E., Niggemann, J., Dittmar, T., Seidel, M., & de Rezende, C. E. (2023). Land-use changes in Amazon and Atlantic rainforests modify organic matter and black carbon compositions transported from land to the coastal ocean. Science of the Total Environment, 878, 162917. https://doi.org/10.1016/j.scitotenv.2023.162917 Cite
Spedicato, A., Zeppilli, D., Thouzeau, G., & Michaud, E. (2023). Nematode diversity patterns in mangroves: a review of environmental drivers at different spatial scales. Biodiversity and Conservation. https://doi.org/10.1007/s10531-023-02562-6 Cite
Cepeda, D., Gonzalez-Casarrubios, A., Sanchez, N., Spedicato, A., Michaud, E., & Zeppilli, D. (2022). Two new species of mud dragons (Scalidophora: Kinorhyncha) inhabiting a human-impacted mangrove from Mayotte (Southwestern Indian Ocean). Zoologischer Anzeiger, 301, 23–41. https://doi.org/10.1016/j.jcz.2022.09.001 Cite
Cepeda, D., Gayet, N., Spedicato, A., Michaud, E., & Zeppilli, D. (2022). Two new species of the Echinoderes coulli-group (Kinorhyncha: Cyclorhagida: Echinoderidae) from a low human-impacted mangrove swamp in French Guiana (western Atlantic Ocean). Zoologischer Anzeiger, 301, 179–195. https://doi.org/10.1016/j.jcz.2022.10.008 Cite
Michaud, E., Aschenbroich, A., Gauthier, O., Fromard, F., Aller, J. Y., Aller, R. C., Brunier, G., Anthony, E. J., Gardel, A., Le Garrec, V., Leynaert, A., & Thouzeau, G. (2022). The Codevelopment of Mangroves and Infaunal Community Diversity in Response to the Natural Dynamics of Mud Deposition in French Guiana. Sustainability, 14(5), 2829. https://doi.org/10.3390/su14052829 Cite
Fiard, M., Cuny, P., Sylvi, L., Hubas, C., Jezequel, R., Lamy, D., Walcker, R., El Houssainy, A., Heimburger-Boavida, L.-E., Robinet, T., Bihannic, I., Gilbert, F., Michaud, E., Dirberg, G., & Militon, C. (2022). Mangrove microbiota along the urban-to-rural gradient of the Cayenne estuary (French Guiana, South America): Drivers and potential bioindicators. Science of the Total Environment, 807, 150667. https://doi.org/10.1016/j.scitotenv.2021.150667 Cite
Jaud, M., Sicot, G., Brunier, G., Michaud, E., Le Dantec, N., Ammann, J., Grandjean, P., Launeau, P., Thouzeau, G., Fleury, J., & Delacourt, C. (2021). Easily Implemented Methods of Radiometric Corrections for Hyperspectral-UAV-Application to Guianese Equatorial Mudbanks Colonized by Pioneer Mangroves. Remote Sensing, 13(23), 4792. https://doi.org/10.3390/rs13234792 Cite
Michaud, E., Aller, R. C., Zhu, Q., Heilbrun, C., & Stora, G. (2021). Density and size-dependent bioturbation effects of the infaunal polychaete Nephtys incisa on sediment biogeochemistry and solute exchange. Journal of Marine Research, 79(4), 181–220. https://doi.org/10.1357/002224021834670801 Cite
Gilbert, F., Kristensen, E., Aller, R. C., Banta, G. T., Archambault, P., Belley, R., Bellucci, L. G., Calder, L., Cuny, P., de Montaudouin, X., Eriksson, S. P., Forster, S., Gillet, P., Godbold, J. A., Glud, R. N., Gunnarsson, J., Hulth, S., Lindqvist, S., Maire, A., … Stora, G. (2021). Sediment reworking by the burrowing polychaete Hediste diversicolor modulated by environmental and biological factors across the temperate North Atlantic. A tribute to Gaston Desrosiers. Journal of Experimental Marine Biology and Ecology, 541, 151588. HAL. https://doi.org/10.1016/j.jembe.2021.151588 Cite
Michelet, C., Zeppilli, D., Hubas, C., Baldrighi, E., Cuny, P., Dirberg, G., Militon, C., Walcker, R., Lamy, D., Jézéquel, R., Receveur, J., Gilbert, F., Houssainy, A. E., Dufour, A., Heimbürger-Boavida, L.-E., Bihannic, I., Sylvi, L., Vivier, B., & Michaud, E. (2021). First Assessment of the Benthic Meiofauna Sensitivity to Low Human-Impacted Mangroves in French Guiana. Forests, 12(3), 338. https://doi.org/10.3390/f12030338 Cite
Morata, N., Michaud, E., Poullaouec, M.-A., Devesa, J., Le Goff, M., Corvaisier, R., & Renaud, P. E. (2020). Climate change and diminishing seasonality in Arctic benthic processes. Philosophical Transactions of the Royal Society A-Mathematical Physical and Engineering Sciences, 378(2181), 20190369. https://doi.org/10.1098/rsta.2019.0369 Cite
Ray, R., Thouzeau, G., Walcker, R., Vantrepotte, V., Gleixner, G., Morvan, S., Devesa, J., & Michaud, E. (2020). Mangrove-Derived Organic and Inorganic Carbon Exchanges Between the Sinnamary Estuarine System (French Guiana, South America) and Atlantic Ocean. Journal of Geophysical Research-Biogeosciences, 125(8), e2020JG005739. https://doi.org/10.1029/2020JG005739 Cite
Baldrighi, E., Dovgal, I., Zeppilli, D., Abibulaeva, A., Michelet, C., Michaud, E., Franzo, A., Grassi, E., Cesaroni, L., Guidi, L., Balsamo, M., Sandulli, R., & Semprucci, F. (2020). The Cost for Biodiversity: Records of Ciliate-Nematode Epibiosis with the Description of Three New Suctorian Species. Diversity-Basel, 12(6), 224. https://archimer.ifremer.fr/doc/00632/74417/. https://doi.org/10.3390/d12060224 Cite
Brunier, G., Michaud, E., Fleury, J., Anthony, E. J., Morvan, S., & Gardel, A. (2020). Assessing the relationship between macro-faunal burrowing activity and mudflat geomorphology from UAV-based Structure-from-Motion photogrammetry. Remote Sensing of Environment, 241, 111717. https://doi.org/10.1016/j.rse.2020.111717 Cite
Dirberg, G., Barnaud, G., Brivois, O., Caessteker, P., Cormier-Salem, M. C., Cuny, P., Fiard, M., Fromard, F., Gilbert, F., Grouard, S., Guiral, D., Hubas, C., Imbert, D., Lamy, D., Meziane, T., Michaud, E., Michelet, C., Militon, C., Pibot, A., … Monnier, O. (2020). Towards the Development of Ecosystem-Based Indicators of Mangroves Functioning State in the Context of the Eu Water Framework Directive. Vie Et Milieu-Life and Environment, 70(3–4), 303–310. https://www.webofscience.com/wos/woscc/full-record/WOS:000675537200029 Cite
Cuny, P., Jezequel, R., Michaud, E., Sylvi, L., Gilbert, F., Fiard, M., Chevalier, C., Morel, V., & Militon, C. (2020). Oil Spill Response in Mangroves: Why a Specific Ecosystem-Based Management Is Required? The Case of French Guiana - a Mini-Review. Vie Et Milieu-Life and Environment, 70(3–4), 69–76. https://www.webofscience.com/wos/woscc/full-record/WOS:000675537200008 Cite
Oleszczuk, B., Michaud, E., Morata, N., Renaud, P. E., & Kedra, M. (2019). Benthic macrofaunal bioturbation activities from shelf to deep basin in spring to summer transition in the Arctic Ocean. Marine Environmental Research, 150, UNSP 104746. https://doi.org/10.1016/j.marenvres.2019.06.008 Cite
Ray, R., Michaud, E., Aller, R. C., Vantrepotte, V., Gleixner, G., Walcker, R., Devesa, J., Le Goff, M., Morvan, S., & Thouzeau, G. (2018). The sources and distribution of carbon (DOC, POC, DIC) in a mangrove dominated estuary (French Guiana, South America). Biogeochemistry, 138(3), 297–321. https://doi.org/10.1007/s10533-018-0447-9 Cite
Aschenbroich, A., Michaud, E., Gilbert, F., Fromard, F., Alt, A., Le Garrec, V., Bihannic, I., De Coninck, A., & Thouzeau, G. (2017). Bioturbation functional roles associated with mangrove development in French Guiana, South America. Hydrobiologia, 794(1), 179–202. https://doi.org/10.1007/s10750-017-3093-7 Cite
Aschenbroich, A., Michaud, E., Stieglitz, T., Fromard, F., Gardel, A., Tavares, M., & Thouzeau, G. (2016). Brachyuran crab community structure and associated sediment reworking activities in pioneer and young mangroves of French Guiana, South America. Estuarine Coastal and Shelf Science, 182, 60–71. https://doi.org/10.1016/j.ecss.2016.09.003 Cite
Brunier, G., Fleury, J., Anthony, E. J., Pothin, V., Vella, C., Dussouillez, P., Gardel, A., & Michaud, E. (2016). Structure-from-Motion photogrammetry for high-resolution coastal and fluvial geomorphic surveys. Géomorphologie : Relief, Processus, Environnement, 22(2), 147–161. https://doi.org/10.4000/geomorphologie.11358 Cite
Berge, J., Daase, M., Renaud, P. E., Ambrose, W. G., Darnis, G., Last, K. S., Leu, E., Cohen, J. H., Johnsen, G., Moline, M. A., Cottier, F., Varpe, O., Shunatova, N., Balazy, P., Morata, N., Massabuau, J.-C., Falk-Petersen, S., Kosobokova, K., Hoppe, C. J. M., … Callesen, T. A. (2015). Unexpected Levels of Biological Activity during the Polar Night Offer New Perspectives on a Warming Arctic. Current Biology, 25(19), 2555–2561. https://doi.org/10.1016/j.cub.2015.08.024 Cite
Morata, N., Michaud, E., & Wlodarska-Kowalczuk, M. (2015). Impact of early food input on the Arctic benthos activities during the polar night. Polar Biology, 38(1), 99–114. https://doi.org/10.1007/s00300-013-1414-5 Cite
Raimonet, M., Andrieux-Loyer, F., Ragueneau, O., Michaud, E., Kérouel, R., Philippon, X., Nonent, M., & Mémery, L. (2013). Strong gradient of benthic biogeochemical processes along a macrotidal temperate estuary: focus on P and Si cycles. Biogeochemistry, 115(1–3), 399–417. http://link.springer.com/article/10.1007/s10533-013-9843-3 Cite
Michaud, E., Aller, R. C., & Stora, G. (2010). Sedimentary organic matter distributions, burrowing activity, and biogeochemical cycling: natural patterns and experimental artifacts. Estuarine, Coastal and Shelf Science, 90(1), 21–34. http://www.sciencedirect.com/science/article/pii/S0272771410002799 Cite
Others publications before 2010
Michaud, E., G. Desrosiers, R. Aller, F. Mermillod-Blondin, B. Sundby, G. Stora. 2009. Spatial interactions in the Macoma balthica community control biogeochemical fluxes at the sediment-water interface and microbial abundances. J. Mar. Res. 61, 1, 43-70. https://doi.org/10.1357/002224009788597926
Gilbert F., Hulth S., Grossi V., Poggiale J-C., Desrosiers G., Rosenberg R., Gérino M., François-Carcaillet F., Michaud E., Stora G. 2007. Sediment reworking activity rates and patterns in some marine benthic species from the Gullmar Fjord (Western Sweden). Importance of faunal biovolume. JEMBE, 348, 1-2, 133-144. https://doi.org/10.1016/j.jembe.2007.04.015
Michaud, E., G. Desrosiers, F. Mermillod-Blondin, B. Sundby, G. Stora. 2006. The functional group approach to bioturbation: II. The effects of the M. balthica community on fluxes of nutrients and dissolved organic carbon across the sediment-water interface. JEMBE, 337: 178-189. https://doi.org/10.1016/j.jembe.2006.06.025
Michaud, E., G. Desrosiers, F. Mermillod-Blondin, B. Sundby, G. Stora. 2005. The functional group approach to bioturbation: The effects of biodiffusers and gallery-diffusers of the M. balthica community on sediment oxygen uptake. JEMBE, Vol. 326, 77-88. https://doi.org/10.1016/j.jembe.2005.05.016
Mermillod-Blondin, S. Marie, G. Desrosiers, B. Long, L. de Montety, E. Michaud, G. Stora. 2003. Assessment of the spatial variability of intertidal benthic communities by axial tomodensitometry: importance of fine-scale heterogeneity. JEMBE, Vol. 287, 193-208. https://doi.org/10.1016/S0022-0981(02)00548-8
Solan, J.D. Germano, D.C. Rhoads, C. Smith, E. Michaud, D. Parry, F. Wenzhöfer, B. Kennedy, C. Henriques, E. Battle, D. Carey, L. Iocco, R. Valente, J. Watson and R. Rosenberg. 2003. Towards a greater understanding of pattern, scale and process in marine benthic systems: a picture is worth a thousand worms. J. Exp. Mar. Biol. Ecol. Vol. 285-286, 313-339. https://doi.org/10.1016/S0022-0981(02)00535-X
Michaud, E., G. Desrosiers, B. Long, L. de Montety, J.F. Crémer, E. Pelletier, J. Locat, F. Gilbert, G. Stora. 2003. Use of axial tomography to follow temporal changes of benthic communities in an unstable sedimentary environment (Ha!Ha! Bay, Saguenay Fjord). J. Exp. Mar. Biol. Ecol.Vol. 285-286, 265-282. https://doi.org/10.1016/S0022-0981(02)00532-4
Desrosiers, G., Gonon, M., de Montety, L., Pelletier, É., Nozais, C., Michaud, E., Stora, G., Long, B., Tremblay, H., Locat, J. 2nd International Symposium on Contaminated Sediments. Québec, Canada, 26-28 mai. Editeur : H. Tremblay, J. Locat, R. Galvez-Cloutier. pp. 78-82
Michaud, E., B. Long, J.F. Crémer, G. Desrosiers, L. de Montety. 2001. Les phases de construction deltaïques, influence d’un apport catastrophique. Canadian Coastal Conference, Quebec, Proceedings. Québec, 16-19 mai. Éditeur : B.F. Long. pp. 533-547.
Books:
E. Michaud, A. Aschenbroich, G. Thouzeau. “La mangrove, l’incontournable du littoral guyanais” in A. Gardel & D. Davy (sous la direction de), Oyapock et Maroni. Portraits d’estuaires amazoniens, Paris, éditions Quæ, Paru le 25 mars 2021. 142 p. ISBN 2759232743
Mangrove, une forêt dans la mer. in F. Fromard, E. Michaud, M. Hossaert-McKey (sous la direction de), Eds Cherche-Midi. Paru le 2 février 2018. 167 p. ISBN 978-2-7491-5764-1
Research networks:
Le groupement de recherche GDR LIGA (Littoral de Guyane sous influence amazonienne) : https://ligagdr.wordpress.com/
International network on the bioturbation studies: Nereis Park: http://nereispark.org/
