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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

Publications

Guerra, M., Sabadel, A., Rayment, W., Dawson, S., & Wing, L. (2023). Seasonal variation in the use of food resources by sperm whales in a submarine canyon. Deep Sea Research Part I, 200, 104149. doi: 10.1016/j.dsr.2023.104149
Journal - Research Article
Elvines, D. M., MacLeod, C. K., Ross, D. J., Sabadel, A. J. M., Bury, S. J., Brown, J. C. S., & White, C. A. (2023). Composition of Chinook salmon faecal wastes with implications for environmental management. Aquaculture, 569, 739358. doi: 10.1016/j.aquaculture.2023.739358
Journal - Research Article
Wehi, P. M., Rogers, K. M., Jowett, T., & Sabadel, A. J. M. (2023). Interpreting past trophic ecology of a threatened alpine parrot, kea Nestor notabilis, from museum specimens. Journal of Animal Ecology, 92, 273-284. doi: 10.1111/1365-2656.13742
Journal - Research Article
Sabadel, A. (2022, November). Unravelling the trophic interaction between a parasitic barnacle (Anelasma squalicola) and its host Southern lanternshark (Etmopterus granulosus) using stable isotopes. Verbal presentation at the New Zealand Marine Sciences (NZMSS) & New Zealand Freshwater Sciences Societies (NZFSS) Joint Conference: Waitī Waitā, Auckland, New Zealand.
Conference Contribution - Verbal presentation and other Conference outputs
Sabadel, A. J. M., Cresson, P., Finucci, B., & Bennett, J. (2022). Unravelling the trophic interaction between a parasitic barnacle (Anelasma squalicola) and its host Southern lanternshark (Etmopterus granulosus) using stable isotopes. Parasitology. doi: 10.1017/s0031182022001299
Journal - Research Article
Elvines, D. M., MacLeod, C. K., Ross, D. J., Sabadel, A. J. M., Bury, S. J., Brown, J. C. S., & White, C. A. (2023). Composition of Chinook salmon faecal wastes with implications for environmental management. Aquaculture, 569, 739358. doi: 10.1016/j.aquaculture.2023.739358
Journal - Research Article
Guerra, M., Sabadel, A., Rayment, W., Dawson, S., & Wing, L. (2023). Seasonal variation in the use of food resources by sperm whales in a submarine canyon. Deep Sea Research Part I, 200, 104149. doi: 10.1016/j.dsr.2023.104149
Journal - Research Article
Wehi, P. M., Rogers, K. M., Jowett, T., & Sabadel, A. J. M. (2023). Interpreting past trophic ecology of a threatened alpine parrot, kea Nestor notabilis, from museum specimens. Journal of Animal Ecology, 92, 273-284. doi: 10.1111/1365-2656.13742
Journal - Research Article
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. J., & Lamare, M. D. (2022). Modelling the effects of food limitation and temperature on the growth and reproduction of the krill Nyctiphanes australis. Estuarine, Coastal & Shelf Science, 268, 107785. 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., & MacLeod, C. D. (2022). Stable isotopes unravel the feeding mode-trophic position relationship in trematode parasites. Journal of Animal Ecology, 91, 484-495. doi: 10.1111/1365-2656.13644
Journal - Research Article
Sabadel, A. J. M., Cresson, P., Finucci, B., & Bennett, J. (2022). Unravelling the trophic interaction between a parasitic barnacle (Anelasma squalicola) and its host Southern lanternshark (Etmopterus granulosus) using stable isotopes. Parasitology. doi: 10.1017/s0031182022001299
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
Tomotani, B. M., Salvador, R. B., Sabadel, A. J. M., Miskelly, C. M., Brown, J. C. S., Delgado, J., … Bury, S. J. (2022). Extreme bill dimorphism leads to different but overlapping isotopic niches and similar trophic positions in sexes of the charismatic extinct huia. Oecologia, 198, 67-77. 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. (2022). Overexploitation and decline in kelp forests inflate the bioenergetic costs of fisheries. Global Ecology & Biogeography, 31, 621-635. doi: 10.1111/geb.13448
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, 148, 1313-1319. 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, 37(4), 267-272. doi: 10.1016/j.pt.2021.01.003
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
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
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