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Dr Amandine Sabadel

Office: Zoology Department, Marples 117Sabadel

Email: amandine.sabadel@otago.ac.nz

Academic Qualifications

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

Research Interests

  • Food web ecology
  • Stable isotopes
  • Parasitology
  • Nutrient cycling
  • Biogeochemistry

My research focuses on trophic ecology, with a particular interest in 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.

Ongoing Research Projects

  • How to fit parasites in food webs? A compound-specific stable isotope approach (Marden fund 19-UOO-212). In collaboration with Dr Colin MacLeod, UBC, Canada.
  • Bioaccumulation of mercury in New Zealand cockles. In collaboration with Dr Arne Bratkič, VUB, Belgium.
  • Understanding the trophic shift of the endemic Kea from 1880s-2000s using amino acids stable isotopes. In collaboration with Dr Priscilla Wehi, Landcare.

Completed 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. PI: Prof. Steve Wing, Department of Marine Science, Otago University.
  • 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. PI: Prof. Cliff Law, NIWA Wellington/Department of Marine Science, Otago University.

Current Postgraduate Students

  • Erica Donlon (intern – Zoology): Using stable isotopes to investigate parasite-host interactions in mud snails.
  • 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): Trophic structure through the history of exploitation in New Zealand fish communities.
  • Tara Lee (MSc – Chemistry): Tracing cocoa beans’ origin using fatty acid stable isotopes

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Publications

Sabadel, A. J. M., Décima, M., McComb, K., Meyers, M., Barr, N., Gall, M., … Law, C. S. (2022). Amino acid nitrogen stable isotopes as biomarkers of coastal phytoplankton assemblages and food web interactions. Marine Ecology Progress Series, 690, 1-13. doi: 10.3354/meps14046

McMullin, R. M., Wing, S. R., Sabadel, A. J. M., & Hageman, K. J. (2022). Experimentally derived biochemical modelling parameters to improve understanding of aquaculture's effect on marine food webs. Marine Environmental Research, 178, 105645. doi: 10.1016/j.marenvres.2022.105645

Wehi, P. M., Rogers, K. M., Jowett, T., & Sabadel, A. J. M. (2022). Interpreting past trophic ecology of a threatened alpine parrot, kea (Nestor notabilis), from museum specimens. Journal of Animal Ecology. Advance online publication. doi: 10.1111/1365-2656.13742

Meyers, M., Décima, M., Law, C. S., Gall, M., Barr, N., Miller, M. R., … Sabadel, A., Wing, S., & Hoffmann, L. (2022). No evidence of altered relationship between diet and consumer fatty acid composition in a natural plankton community under combined climate drivers. Journal of Experimental Marine Biology & Ecology, 551, 151734. doi: 10.1016/j.jembe.2022.151734

Durante, L., Wing, S., Ingram, T., Sabadel, A., & Shima, J. (2022). Changes in trophic structure of an exploited fish community at the centennial scale are linked to fisheries and climate forces. Scientific Reports, 12, 4309. doi: 10.1038/s41598-022-08391-x

Durante, L., Wing, S., Ingram, T., Sabadel, A., & Shima, J. (2022). Changes in trophic structure of an exploited fish community at the centennial scale are linked to fisheries and climate forces. Scientific Reports, 12, 4309. doi: 10.1038/s41598-022-08391-x

Journal - Research Article

Lagos, P. F., Curtsdotter, A., Agüera, A., Sabadel, A. J. M., Burritt, D. J., & Lamare, M. D. (2022). Fast changes in the bioenergetic balance of krill in response to environmental stress. Frontiers in Marine Science, 8, 782524. doi: 10.3389/fmars.2021.782524

Journal - Research Article

Lagos, P. F., Curtsdotter, A., Agüera, A., Sabadel, A. J. M., Burritt, D., & Lamare, M. (2022). Modelling the effects of food limitation and temperature on the growth and reproduction of the krill Nyctiphanes australis. Estuarine, Coastal & Shelf Science. Advance online publication. doi: 10.1016/j.ecss.2022.107785

Journal - Research Article

McMullin, R. M., Wing, S. R., Sabadel, A. J. M., & Hageman, K. J. (2022). Experimentally derived biochemical modelling parameters to improve understanding of aquaculture's effect on marine food webs. Marine Environmental Research, 178, 105645. doi: 10.1016/j.marenvres.2022.105645

Journal - Research Article

Meyers, M., Décima, M., Law, C. S., Gall, M., Barr, N., Miller, M. R., … Sabadel, A., Wing, S., & Hoffmann, L. (2022). No evidence of altered relationship between diet and consumer fatty acid composition in a natural plankton community under combined climate drivers. Journal of Experimental Marine Biology & Ecology, 551, 151734. doi: 10.1016/j.jembe.2022.151734

Journal - Research Article

Sabadel, A. J. M., Décima, M., McComb, K., Meyers, M., Barr, N., Gall, M., … Law, C. S. (2022). Amino acid nitrogen stable isotopes as biomarkers of coastal phytoplankton assemblages and food web interactions. Marine Ecology Progress Series, 690, 1-13. doi: 10.3354/meps14046

Journal - Research Article

Wehi, P. M., Rogers, K. M., Jowett, T., & Sabadel, A. J. M. (2022). Interpreting past trophic ecology of a threatened alpine parrot, kea (Nestor notabilis), from museum specimens. Journal of Animal Ecology. Advance online publication. doi: 10.1111/1365-2656.13742

Journal - Research Article

Doherty, J.-F., Filion, A., Bennett, J., Bhattarai, U. R., Chai, X., de Angeli Dutra, D., … Jorge, F., Milotic, M., Park, E., Sabadel, A. J. M., Thomas, L. J., & Poulin, R. (2021). The people versus science: Can passively crowdsourced internet data shed light on host-parasite interactions? Parasitology. Advance online publication. doi: 10.1017/s0031182021000962

Journal - Research Article

Kolodzey, S., Durante, L. M., Sabadel, A. J. M., & Wing, S. R. (2021). Larval quality and fecundity trade-offs are linked to the maternal environment in sea perch (Helicolenus percoides, Sebastidae). Journal of Experimental Marine Biology & Ecology, 537, 151525. doi: 10.1016/j.jembe.2021.151525

Journal - Research Article

McMullin, R. M., Sabadel, A. J. M., Hageman, K. J., & Wing, S. R. (2021). A quantitative analysis of organic matter inputs to soft sediment communities surrounding salmon farms in the Marlborough Sounds region of New Zealand. Science of the Total Environment, 773, 145146. doi: 10.1016/j.scitotenv.2021.145146

Journal - Research Article

Poulin, R., Bennett, J., Filion, A., Bhattarai, U. R., Chai, X., de Angeli Dutra, D., Donlon, E., Doherty, J.-F., Jorge, F., Milotic, M., Park, E., Sabadel, A., & Thomas, L. J. (2021). iParasitology: Mining the internet to test parasitological hypotheses. Trends in Parasitology. Advance online publication. doi: 10.1016/j.pt.2021.01.003

Journal - Research Article

Sabadel, A. J. M., & MacLeod, C. D. (2021). Stable isotopes unravel the feeding mode-trophic position relationship in trematode parasites. Journal of Animal Ecology. Advance online publication. doi: 10.1111/1365-2656.13644

Journal - Research Article

Te Morenga, L., Kruimer, D., McLean, R., Sabadel, A. J. M., Van Hale, R., Tatin, X., … Mann, J., & Merriman, T. (2021). Associations between sugars intakes and urinary sugars excretion and carbon stable isotope ratios in red blood cells as biomarkers of sugars intake in a predominantly Māori population. Frontiers in Nutrition, 8, 637267. doi: 10.3389/fnut.2021.637267

Journal - Research Article

Tomotani, B. M., Salvador, R. B., Sabadel, A. J. M., Miskelly, C. M., Brown, J. C. S., Delgado, J., … Bury, S. J. (2021). Extreme bill dimorphism leads to different but overlapping isotopic niches and similar trophic positions in sexes of the charismatic extinct huia. Oecologia. Advance online publication. doi: 10.1007/s00442-021-05082-8

Journal - Research Article

Wing, S. R., Durante, L. M., Connolly, A. J., Sabadel, A. J. M., & Wing, L. C. (2021). Overexploitation and decline in kelp forests inflate the bioenergetic costs of fisheries. Global Ecology & Biogeography. Advance online publication. doi: 10.1111/geb.13448

Journal - Research Article

Durante, L. M., Sabadel, A. J. M., Frew, R. D., Ingram, T., & Wing, S. R. (2020). Effects of fixatives on stable isotopes of fish muscle tissue: Implications for trophic studies on preserved specimens. Ecological Applications, 30(4), e02080. doi: 10.1002/eap.2080

Journal - Research Article

Glue, P., Neehoff, S., Sabadel, A., Broughton, L., Le Nedelec, M., Shadli, S., McNaughton, N., & Medlicott, N. J. (2020). Effects of ketamine in patients with treatment-refractory generalized anxiety and social anxiety disorders: Exploratory double-blind psychoactive-controlled replication study. Journal of Psychopharmacology, 34(3), 267-272. doi: 10.1177/0269881119874457

Journal - Research Article

Guerra, M., Dawson, S., Sabadel, A., Slooten, E., Somerford, T., Williams, R., Wing, L., & Rayment, W. (2020). Changes in habitat use by a deep-diving predator in response to a coastal earthquake. Deep Sea Research Part I, 158, 103226. doi: 10.1016/j.dsr.2020.103226

Journal - Research Article

Sabadel, A. J. M., Durante, L. M., & Wing, S. R. (2020). Stable isotopes of amino acids from reef fishes uncover Suess and nitrogen enrichment effects on local ecosystems. Marine Ecology Progress Series, 647, 149-160. doi: 10.3354/meps13414

Journal - Research Article

Sabadel, A. J. M., Van Oostende, N., Ward, B. B., Woodward, E. M. S., Van Hale, R., & Frew, R. D. (2019). Characterization of particulate organic matter cycling during a summer North Atlantic phytoplankton bloom using amino acid C and N stable isotopes. Marine Chemistry, 214, 103670. doi: 10.1016/j.marchem.2019.103670

Journal - Research Article

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

Journal - Research Article

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

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

Journal - Research Article

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

Lagos, P. F., Gómez-Gutiérrez, J., Sabadel, A. J. M., Burritt, D. J., & Lamare, M. D. (2021). Review of the biology of the krill genus Nyctiphanes G.O. Sars, 1883 (Euphausiacea: Euphausiidae): Challenges for future research on environmental change. Journal of Crustacean Biology, 41(1), 1-17. doi: 10.1093/jcbiol/ruaa088

Journal - Research Other

Lagos, P. F., Sabadel, A., & Lamare, M. (2021). Modelling the influence of light on the biological characteristics of coastal waters. Ocean Science Discussions, 2021. Advance online publication. doi: 10.5194/os-2021-99

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

Journal - Research Other

Bury, S., St. John Glew, K., Espinasse, B., Trueman, C., Sabadel, A., Escobar-Flores, P., … Pinkerton, M. (2021). Southern Ocean isoscapes inform spatio-temporal biogeochemical processes, trophic ecology and animal movements. Proceedings of the New Zealand Antarctic Science Conference: Connecting through change. (pp. 109). Retrieved from https://www.antarcticanz.govt.nz/nzasc21

Conference Contribution - Published proceedings: Abstract

Durante, L., Sabadel, A., Ingram, T., & Wing, S. (2020). Investigating long-term temporal changes in trophic structure of fish communities: Insights from whole muscle tissue and compound specific isotopic analysis of amino acids. Proceedings of the Ocean Sciences Meeting (OSM). ME14D-0028. Retrieved from https://agu.confex.com/agu/osm20/meetingapp.cgi

Conference Contribution - Published proceedings: Abstract

Nodder, S., Howarth, J., Orpin, A., Turnbull, J., Mountjoy, J., Gibbs, M., … Sabadel, A. (2019). Quantification of organic carbon transfer to the deep-sea by the Kaikōura earthquake turbidity current. In P. J. J. Kamp & A. Pittari (Eds.), Geoscience Society of New Zealand Miscellaneous Publication. 154A, (pp. 148). Wellington, New Zealand: GSNZ. [Abstract]

Conference Contribution - Published proceedings: Abstract

Sabadel, A. J. M., Luan, Q., Northcote, L., & Law, C. (2019). Climate change impact on coastal particulate organic matter cycling and nutritional value, using amino acid concentrations and C and N stable isotopes. Proceedings of the 12th New Zealand Ocean Acidification Workshop. (pp. 38). Retrieved from http://nzoac.nz

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/

Conference Contribution - Published proceedings: Abstract

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

Conference Contribution - Published proceedings: Abstract

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.

Conference Contribution - Poster Presentation (not in published proceedings)

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.

Conference Contribution - Verbal presentation and other Conference outputs

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

Awarded Doctoral Degree

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