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Dr Amandine Sabadel

Amandine  Sabadel imageContact details

Office: Marine Science (310 Castle Street, room 105) or Chemistry (Science 2 Building, Union Place West, room 120).
Email: amandine.sabadel@otago.ac.nz

Academic qualifications

MSc (University of Montpellier II, France)
PhD (University of Otago)

Research interests

  • Food web ecology
  • Nutrient cycling
  • Parasitology
  • Stable isotope biogeochemistry

My research focuses on trophic ecology, with a particular interest to biochemical reactions and biomass transfer occurring in the world of tiny things. From the investigation of the cycling of organic matter in open oceans to the tracking of energy transfers through various food webs, via the reconstruction of ancient and modern diets.

I use a broad range of analytical techniques, but particularly compound-specific stable isotope analysis of amino acids and fatty acids.

Research projects

  • Sustainable Seas Program: understanding the impact of human activities and environmental change on marine ecosystems by investigating the evolution of the trophic status of key species based on amino acids and fatty acids isotope techniques.
  • CARIM program: establishment of the influence of future ocean acidification warming on organic matter cycling and food quality in coastal plankton communities, using amino acids stable isotopes.
  • Bioaccumulation of mercury in New Zealand cockles.
  • Understanding the trophic shift of the endemic Kea from 1880s–2000s using amino acids stable isotopes (in collaboration with Dr Priscilla Wehi, Landcare).

Postgraduate students

  • Paulo Lagos (PhD – Marine Science/Botany): Investigating the response of the krill Nyctiphanes australis (Euphausiacea) to stress caused by environmental change: a dynamic energy budget approach
  • Leo Durante (PhD – Marine Science): Identifying Food-web structure, Resource Use and Movements of Fishes under the Quota Management System.
  • Tara Lee (MSc – Chemistry): Tracing cocoa beans’ origin using fatty acid stable isotopes

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Publications

Sabadel, A. J. M., Stumbo, A. D., & MacLeod, C. D. (2019). Stable-isotope analysis: A neglected tool for placing parasites in food webs. Journal of Helminthology, 9(1), 1-7. doi: 10.1017/s0022149x17001201

Van Oostende, N., Fawcett, S. E., Marconi, D., Lueders-Dumont, J., Sabadel, A. J. M., Woodward, E. M. S., … Ward, B. B. (2017). Variation of summer phytoplankton community composition and its relationship to nitrate and regenerated nigrogen assimilation across the North Atlantic ocean. Deep Sea Research Part I, 121, 79-94. doi: 10.1016/j.dsr.2016.12.012

Kitidis, V., Tait, K., Nunes, J., Brown, I., Woodward, E. M. S., Harris, C., Sabadel, A. J. M., … Kröger, S. (2017). Seasonal benthic nitrogen cycling in a temperate shelf sea: The Celtic Sea. Biogeochemistry, 135(1-2), 103-119. doi: 10.1007/s10533-017-0311-3

Sabadel, A. J. M., Browning, T. J., Kruimer, D., Airs, R. L., Woodward, E. M. S., Van Hale, R., & Frew, R. D. (2017). Determination of picomolar dissolved free amino acids along a South Atlantic transect using reversed-phase high-performance liquid chromatography. Marine Chemistry, 196, 173-180. doi: 10.1016/j.marchem.2017.09.008

Sabadel, A. J. M., Woodward, E. M. S., Van Hale, R., & Frew, R. D. (2016). Compound-specific isotope analysis of amino-acids: A tool to unravel complex symbiotic trophic relationships. Food Webs, 6, 9-18. doi: 10.1016/j.fooweb.2015.12.003

Journal - Research Article

Van Oostende, N., Fawcett, S. E., Marconi, D., Lueders-Dumont, J., Sabadel, A. J. M., Woodward, E. M. S., … Ward, B. B. (2017). Variation of summer phytoplankton community composition and its relationship to nitrate and regenerated nigrogen assimilation across the North Atlantic ocean. Deep Sea Research Part I, 121, 79-94. doi: 10.1016/j.dsr.2016.12.012

Sabadel, A. J. M., Browning, T. J., Kruimer, D., Airs, R. L., Woodward, E. M. S., Van Hale, R., & Frew, R. D. (2017). Determination of picomolar dissolved free amino acids along a South Atlantic transect using reversed-phase high-performance liquid chromatography. Marine Chemistry, 196, 173-180. doi: 10.1016/j.marchem.2017.09.008

Kitidis, V., Tait, K., Nunes, J., Brown, I., Woodward, E. M. S., Harris, C., Sabadel, A. J. M., … Kröger, S. (2017). Seasonal benthic nitrogen cycling in a temperate shelf sea: The Celtic Sea. Biogeochemistry, 135(1-2), 103-119. doi: 10.1007/s10533-017-0311-3

Sabadel, A. J. M., Woodward, E. M. S., Van Hale, R., & Frew, R. D. (2016). Compound-specific isotope analysis of amino-acids: A tool to unravel complex symbiotic trophic relationships. Food Webs, 6, 9-18. doi: 10.1016/j.fooweb.2015.12.003

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Journal - Research Other

Sabadel, A. J. M., Stumbo, A. D., & MacLeod, C. D. (2019). Stable-isotope analysis: A neglected tool for placing parasites in food webs. Journal of Helminthology, 9(1), 1-7. doi: 10.1017/s0022149x17001201

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Conference Contribution - Published proceedings: Abstract

Sabadel, A. J., Van Hale, R., Boyd, P. W., & Frew, R. D. (2012). From onshore to offshore: Using amino acids to trace the marine-terrestrial exchange. Proceedings of the Ocean Sciences Meeting. (pp. 400). Retrieved from http://www.sgmeet.com/osm2012/

Sabadel, A. (2011). Free amino acids extraction from oligotrophic seawater and its impact on the oceanographic nitrogen fixation. Proceedings of the New Zealand Marine Sciences Society (NZMSS) Conference: Understanding, Managing, and Conserving our Marine Environment. (pp. 44). Retrieved from http://nzmss.org/assets/Conference/NZMSS2011AbstractsPosterPresentations.pdf

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Conference Contribution - Poster Presentation (not in published proceedings)

Sabadel, A. J., Woodward, E. M., Van Hale, R., Frew, R. D., & Boyd, P. W. (2014, February). Amino acids along a South Atlantic transect (40 SS). Poster session presented at the Ocean Sciences Meeting, Honolulu, USA.

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Conference Contribution - Verbal presentation and other Conference outputs

Sabadel, A. (2015, August). Compound-specific isotope analysis of amino acids: A tool to unravel complex symbiotic trophic relationships. Verbal presentation at the SINNZ Meeting, Dunedin, New Zealand.

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Awarded Doctoral Degree

Sabadel, A. J. M. (2015). Stable isotope analysis of amino acids: A tool to understand trophic relationships in terrestrial and marine food webs (PhD). University of Otago, Dunedin, New Zealand. Retrieved from http://hdl.handle.net/10523/5982

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