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Keywords

Cyanobacteria Carbohydrates/chemistry Amazon River plume COMMUNITIES ACL Carbon cycling Diazotrophs BACTERIE CYCLE BIOGEOCHIMIQUE AMMONIUM Scleractinian corals Biogeochemistry ABUNDANCE Cape Ghir Cyanothece Bacteria ABONDANCE Assimilation Communities NifH
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Number of documents

39

Mar Benavides

Chargée de Recherche IRD, Mediterranean Institute of Oceanography.

My research is focused on understanding the interactions between marine microbes and their environment. These tiny creatures are embedded in moving volumes of seawater, which change in chemical and physical properties as they travel the ocean. These interactions occur across dynamic spatio-temporal scales and need to be studied with a transdisciplinary approach. I combine stable isotope, molecular biology and biogeochemistry methods to unveil how microbes shape oceanic biogeochemical cycling.

 

For more info check my site www.oceanbridges.net

Journal articles39 documents

  • Emmrick Saulia, Mar Benavides, B. Henke, K. Turk-Kubo, H. Cooperguard, et al.. Seasonal shifts in Diazotrophs players: patterns observed over a two-year time series in the New Caledonian lagoon (Western tropical South Pacific ocean). Frontiers in Marine Science, Frontiers Media, 2020, 7, 11 p. [en ligne]. ⟨10.3389/fmars.2020.581755⟩. ⟨hal-03024751⟩
  • Mar Benavides, Solange Duhamel, France van Wambeke, Katyanne Shoemaker, Pia Moisander, et al.. Dissolved organic matter stimulates N2 fixation and nifH gene expression in Trichodesmium. FEMS Microbiology Letters, Wiley-Blackwell, 2020, ⟨10.1093/femsle/fnaa034⟩. ⟨hal-02488660⟩
  • Isabel Baños, Maria Montero, Mar Benavides, Javier Arístegui. INT Toxicity over Natural Bacterial Assemblages from Surface Oligotrophic Waters: Implications for the Assessment of Respiratory Activity. Microbial Ecology, Springer Verlag, 2020, ⟨10.1007/s00248-019-01479-4⟩. ⟨hal-02458913⟩
  • Mar Benavides, Julie Robidart. Bridging the Spatiotemporal Gap in Diazotroph Activity and Diversity With High-Resolution Measurements. Frontiers in Marine Science, Frontiers Media, 2020, ⟨10.3389/fmars.2020.568876⟩. ⟨hal-02975129⟩
  • Jaime Palter, Elana Ames, Mar Benavides, Afonso Gonçalves Neto, Julie Granger, et al.. High N 2 Fixation in and Near the Gulf Stream Consistent with a Circulation Control on Diazotrophy. Geophysical Research Letters, American Geophysical Union, 2020, 47 (16), ⟨10.1029/2020GL089103⟩. ⟨hal-03150286⟩
  • Angelicque White, Julie Granger, Corday Selden, Mary Gradoville, Lindsey Potts, et al.. A critical review of the 15 N 2 tracer method to measure diazotrophic production in pelagic ecosystems. Limnology and Oceanography: Methods, Association for the Sciences of Limnology and Oceanography, 2020, 18 (4), pp.129-147. ⟨10.1002/lom3.10353⟩. ⟨hal-03150289⟩
  • Christos Panagiotopoulos, Mireille Pujo-Pay, Mar Benavides, France van Wambeke, Richard Sempere. The composition and distribution of semi-labile dissolved organic matter across the southwest Pacific. Biogeosciences, European Geosciences Union, 2019, 16 (1), pp.105-116. ⟨hal-01982273⟩
  • Mar Benavides, Thuoc Van, Xavier Mari. Amino acids promote black carbon aggregation and microbial colonization in coastal waters off Vietnam. Science of the Total Environment, Elsevier, 2019, ⟨10.1016/j.scitotenv.2019.05.141⟩. ⟨hal-02458910⟩
  • Valentine Meunier, Sophie Bonnet, Mathieu Pernice, Mar Benavides, Anne Lorrain, et al.. Bleaching forces coral’s heterotrophy on diazotrophs and Synechococcus. ISME Journal, Nature Publishing Group, 2019, 13 (11), pp.2882-2886. ⟨10.1038/s41396-019-0456-2⟩. ⟨hal-02458908⟩
  • Mar Benavides, Katyanne Shoemaker, Pia H. Moisander, Jutta Niggemann, Thorsten Dittmar, et al.. Aphotic N2 fixation along an oligotrophic to ultraoligotrophic transect in the western tropical South Pacific Ocean. Biogeosciences, European Geosciences Union, 2018, 15 (9), pp.3107-3119. ⟨10.5194/bg-15-3107-2018⟩. ⟨hal-01812049⟩
  • Nicola Wannicke, Mar Benavides, Tage Dalsgaard, Joachim Dippner, Joseph Montoya, et al.. New Perspectives on Nitrogen Fixation Measurements Using 15N2 Gas. Frontiers in Marine Science, Frontiers Media, 2018, 5, ⟨10.3389/fmars.2018.00120⟩. ⟨hal-02074058⟩
  • Mar Benavides, Mar Martias, Hila Elifantz, Ilana Berman-Frank, Cecile Dupouy, et al.. Dissolved Organic Matter Influences N2 Fixation in the New Caledonian Lagoon (Western Tropical South Pacific). Frontiers in Marine Science, Frontiers Media, 2018, 5, ⟨10.3389/fmars.2018.00089⟩. ⟨hal-02024170⟩
  • Solange Duhamel, France van Wambeke, Dominique Lefèvre, Mar Benavides, Sophie Bonnet. Mixotrophic metabolism by natural communities of unicellular cyanobacteria in the western tropical South Pacific Ocean. Environmental Microbiology, Wiley-Blackwell, 2018, ⟨10.1111/1462-2920.14111⟩. ⟨hal-01830630⟩
  • Sophie Bonnet, Mathieu Caffin, Hugo Berthelot, Olivier Grosso, Mar Benavides, et al.. In-depth characterization of diazotroph activity across the western tropical South Pacific hotspot of N<sub>2</sub> fixation (OUTPACE cruise). Biogeosciences, European Geosciences Union, 2018, 15 (13), pp.4215-4232. ⟨10.5194/bg-15-4215-2018⟩. ⟨hal-02024176⟩
  • Mar Benavides, Sophie Bonnet, Ilana Berman-Frank, Lasse Riemann. Deep Into Oceanic N2 Fixation. Frontiers in Marine Science, Frontiers Media, 2018, 5, ⟨10.3389/fmars.2018.00108⟩. ⟨hal-02024169⟩
  • Alexandre Ganachaud, Sophie Cravatte, Janet Sprintall, Cyril Germineaud, Marion Alberty, et al.. The Solomon Sea: its circulation, chemistry, geochemistry and biology explored during two oceanographic cruises. Elementa: Science of the Anthropocene, University of California Press, 2017, 5, pp.33. ⟨10.1525/elementa.221⟩. ⟨hal-01736985⟩
  • Mar Benavides, Hugo Berthelot, Solange Duhamel, Patrick Raimbault, Sophie Bonnet. Dissolved organic matter uptake by Trichodesmium in the Southwest Pacific. Scientific Reports, Nature Publishing Group, 2017, 7, pp.41315 ⟨10.1038/srep41315⟩. ⟨hal-01621711⟩
  • Pia Moisander, Mar Benavides, Sophie Bonnet, Ilana Berman-Frank, Angelicque White, et al.. Chasing after Non-cyanobacterial Nitrogen Fixation in Marine Pelagic Environments. Frontiers in Microbiology, Frontiers Media, 2017, 8, pp.1736. ⟨10.3389/fmicb.2017.01736⟩. ⟨hal-01736992⟩
  • H. Berthelot, Mar Benavides, P. H. Moisander, O. Grosso, Sophie Bonnet. High-nitrogen fixation rates in the particulate and dissolved pools in the Western Tropical Pacific (Solomon and Bismarck Seas). Geophysical Research Letters, American Geophysical Union, 2017, 44 (16), pp.8414 - 8423. ⟨10.1002/2017GL073856⟩. ⟨hal-01622028⟩
  • Mar Benavides, Vanessa N. Bednarz, Christine Ferrier-Pagès. Diazotrophs: Overlooked Key Players within the Coral Symbiosis and Tropical Reef Ecosystems?. Frontiers in Marine Science, Frontiers Media, 2017, 4, ⟨10.3389/fmars.2017.00010⟩. ⟨hal-01621712⟩
  • Mar Benavides, Fanny Houlbreque, Mercedes Camps, Anne Lorrain, Olivier Grosso, et al.. Diazotrophs: a non-negligible source of nitrogen for the tropical coral Stylophora pistillata. Journal of Experimental Biology, Cambridge University Press, 2016, 219 (17), pp.2608-2612. ⟨10.1242/jeb.139451⟩. ⟨hal-01483200⟩
  • Mar Benavides, Sophie Bonnet, Nauzet Hernández, Alba María Martínez-Pérez, Mar Nieto-Cid, et al.. Basin-wide N2 fixation in the deep waters of the Mediterranean Sea. Global Biogeochemical Cycles, American Geophysical Union, 2016, ⟨10.1002/2015GB005326⟩. ⟨hal-02458925⟩
  • Mercedes Camps, Mar Benavides, Kimberley A. Lema, David G. Bourne, Olivier Grosso, et al.. Released coral mucus does not enhance planktonic N-2 fixation rates. Aquatic Microbial Ecology, Inter Research, 2016, 77 (1), pp.51-63. ⟨10.3354/ame01787⟩. ⟨hal-01443633⟩
  • Mar Benavides, Pia H. Moisander, Meaghan C. Daley, Antonio Bode, Javier Aristegui. Longitudinal variability of diazotroph abundances in the subtropical North Atlantic Ocean. Journal of Plankton Research, Oxford University Press (OUP), 2016, 38 (3), pp.662-672. ⟨10.1093/plankt/fbv121⟩. ⟨hal-01443608⟩
  • Sophie Bonnet, Hugo Berthelot, Kendra Turk-Kubo, Veronique Cornet, Sarah Fawcett, et al.. Diazotroph derived nitrogen supports diatom growth in the South West Pacific: A quantitative study using nanoSIMS. Limnology and Oceanography, Association for the Sciences of Limnology and Oceanography, 2016, 61 (5), pp.1549-1562. ⟨10.1002/lno.10300⟩. ⟨hal-01443231⟩
  • Mar Benavides, Maren Voss. Five decades of N2 fixation research in the North Atlantic Ocean. Frontiers in Marine Science, Frontiers Media, 2015, 2, pp.40. ⟨10.3389/fmars.2015.00040⟩. ⟨hal-01159207⟩
  • Yeray Santana-Falcón, Mar Benavides, Pablo Sangrà, Evan Mason, Desmond Barton Eric, et al.. Coastal-offshore exchange of organic matter across the Cape Ghir filament (NW Africa) during moderate upwelling. Journal of Marine Systems, Elsevier, 2015. ⟨hal-01221413⟩
  • Mar Benavides, Pia H. Moisander, Hugo Berthelot, Thorsten Dittmar, Olivier Grosso, et al.. Mesopelagic N2 Fixation Related to Organic Matter Composition in the Solomon and Bismarck Seas (Southwest Pacific). PLoS ONE, Public Library of Science, 2015, 10 (12), pp.e0143775. ⟨10.1371/journal.pone.0143775⟩. ⟨hal-01247428⟩
  • Mar Benavides, Yeray Santana-Falcón, Norbert Wasmund, Javier Arístegui. Microbial uptake and regeneration of inorganic nitrogen off the coastal Namibian upwelling system. Journal of Marine Systems, Elsevier, 2014, ⟨10.1016/j.jmarsys.2014.05.002⟩. ⟨hal-01058479⟩
  • M. Arcos-Pulido, A. Rodriguez-Santana, M. Emelianov, V. Paka, J. Aristegui, et al.. Diapycnal nutrient fluxes on the northern boundary of Cape Ghir upwelling region. Deep Sea Research Part I: Oceanographic Research Papers, Elsevier, 2014, 84, pp.100-109. ⟨10.1016/j.dsr.2013.10.010⟩. ⟨hal-00999235⟩
  • V. Anabalon, J. Aristegui, C. E. Morales, I. Andrade, Mar Benavides, et al.. The structure of planktonic communities under variable coastal upwelling conditions off Cape Ghir (31 degrees N) in the Canary Current System (NW Africa). Progress in Oceanography, Elsevier, 2014, 120, pp.320-339. ⟨10.1016/j.pocean.2013.10.015⟩. ⟨hal-00999242⟩
  • Mar Benavides, Javier Arístegui, Nona Sheila Romualdo Agawin, J. López Cancio, Santiago Hernández-León. Enhancement of nitrogen fixation rates by unicellular diazotrophs vs. Trichodesmium after a dust deposition event in the Canary Islands. Limnology and Oceanography, Association for the Sciences of Limnology and Oceanography, 2013, 58 (1), pp.267-275. ⟨hal-00999282⟩
  • Mar Benavides, Deborah Bronk, Nona Sheila Romualdo Agawin, Md Pérez-Hernández, Alonso Hernández-Guerra, et al.. Longitudinal variability of size-fractionated N-2 fixation and DON release rates along 24.5 degrees N in the subtropical North Atlantic. Journal of Geophysical Research, American Geophysical Union, 2013, 118 (7), pp.3406-3415. ⟨hal-00999275⟩
  • Mar Benavides, Javier Arístegui, Nona Sheila Romualdo Agawin, Xosé-Antón Álvarez-Salgado, Marta Álvarez, et al.. Low contribution of N2 fixation to new production and excess nitrogen in the subtropical northeast Atlantic margin. Deep Sea Research Part I: Oceanographic Research Papers, Elsevier, 2013, 81, pp.36-48. ⟨hal-00999279⟩
  • Mar Benavides, Nona Sheila Romualdo Agawin, Javier Arístegui, Jan Peene, Lucas J. Stal. Dissolved organic nitrogen and carbon release by a marine unicellular diazotrophic cyanobacterium. Aquatic Microbial Ecology, Inter Research, 2013, 69 (1), pp.69-80. ⟨hal-00999281⟩
  • Nona Sr Agawin, Mar Benavides, Antonio Busquets, Pere Ferriol, Lucas J Stal, et al.. Dominance of unicellular cyanobacteria in the diazotrophic community in the Atlantic Ocean. Limnology and Oceanography, Association for the Sciences of Limnology and Oceanography, 2013, 59 (2), pp.623-637. ⟨hal-00999277⟩
  • Luo Yw, Doney Sc, Anderson La, Mar Benavides, Bode A., et al.. Database of diazotrophs in global ocean: abundances, biomass and nitrogen fixation rates. Earth System Science Data : Papers in open discussion, Copernicus Publications, 2012, 5 (1), pp.47-106. ⟨hal-00999292⟩
  • Mar Benavides, Nona Sheila Romualdo Agawin, Javier Arístegui, Pere Ferriol, Lucas J. Stal. Nitrogen fixation by Trichodesmium and small diazotrophs in the subtropical northeast Atlantic. Aquatic Microbial Ecology, Inter Research, 2011, 65 (1), pp.43-53. ⟨hal-00999284⟩
  • Mar Benavides, Fidel Echevarría, Reyes Sánchez-García, Natalia Garzón, Ji González-Gordillo. Mesozooplankton community structure during summer months in the Bay of Cádiz. Thalassas, 2010, 26 (2), pp.103-118. ⟨hal-00999288⟩