Presentations
2024
Forrer, H. J. Investigating biological carbon pump variability and functionality: the application of new and old conceptual frameworks across spatial and temporal scales. Dissertations in Chemical Oceanography Symposium (DISCO XXIX), Hawaii, USA. (oral presentation)
2024
Forrer, H. J., Spencer, R. G. M, McKenna, A. M., Chen, H., Stukel, M. R. Molecular-level characterization of sinking particulate organic matter: insights from the Subantarctic and Western Antarctic Peninsula. SCAR Open Science Conference, Pucon, Chile. (poster presentation, presenting author)
2024
Forrer, H. J., Stukel, M. R., McKenna, A. M., Chen, H., Holt, A. D., Kranz, S. A., Spencer, R. G. M. From bioreactive to stable: the diagenetic clock of sinking marine organic matter. Ocean Sciences, New Orleans, USA. (oral presentation, presenting author)
2024
Stirnimann, L., Bornman, T. G., Forrer, H. J., Mirkin, J., Ryan‐Keogh, T. J., Flynn, R. F., ... & Fawcett, S. E. Using a Circum‐Antarctic plankton isoscape to assess carbon export potential and plankton trophic structure across the Southern Ocean. Ocean Sciences, New Orleans, USA. (oral presentation)
2024
Fawcett, S. E., Marshall, T. A., Sinyanya, K. Y., Flynn, R. F., Forrer, H. J., Ryu, Y., Walker, D. R., Beal, L., Sigman, D. M. Nitrogen cycling in the Agulhas Current II: Agulhas Current dynamics drive (sub)mesoscale nitrate fluxes that fuel new production. Ocean Sciences, New Orleans, USA. (oral presentation)
2023
Forrer, H. J., Stukel, M. R., McKenna, A. M., Chen, H., Holt, A. D., Kranz, S. A., Spencer, R. G. M. Subantarctic and Antarctic Peninsula Sediment Trap Water Soluble Organic Matter Characterization: Insights from Ultrahigh Resolution Mass Spectrometry. SOOS, Hobart, Australia. (oral presentation, presenting author)
2022
Forrer, H. J., Bonnet, S., Thomas, R.K., Guieu, C., Knapp, A.N. Quantifying dissolved organic nitrogen production and consumption using a δ15N budget in the prolific di-nitrogen fixation region near the Tonga Arc in the western subtropical South Pacific. Ocean Sciences, online. (oral presentation, presenting author)
2022
Thomas, R. K., Fawcett, S. E., Forrer, H. J., Kranz, S. A., Chappell, P.D., Einarsson, S., Ryan-Keogh, T., Graves, E., Roychoudhury, A., Haraguchi, L., and Knapp, A.N. Field-based nitrate assimilation isotope effect estimates from the Atlantic sector of the Southern Ocean. Ocean Sciences, online. (oral presentation)
2022
Graves, E., Einarsson, S., Powell, K., Fawcett, S. E, Forrer, H. J, Kranz, S. A, Knapp, A. N, Thomas, R. K, Rose, J., and Chappell, P. D. Phytoplankton community composition in relation to physico-chemical gradients in the Atlantic sector of the Southern Ocean. Ocean Sciences, online. (oral presentation)
2022
Chappell, P.D., Graves, E., Einarsson, S.V., Powell, K.E., Thomas, R.K., Forrer, H. J., Fawcett, S.E., Knapp, A.N., Kranz, S.A. Phytoplankton community responses to iron and light stress in the Atlantic sector of the Subantarctic and Antarctic. Ocean Sciences, online. (oral presentation)
2021
Forrer, H. J., Bonnet, S., Guieu, C., and Knapp, A.N., Quantifying di-nitrogen fixation and its contribution to export production using δ15N budgets near the Tonga Arc in the Western Sub-tropical South Pacific. ASLO Summer online. (oral presentation, presenting author)
2021
Thomas, R. K., Fawcett, S. E., Forrer, H. J., Kranz, S. A., Chappell, P. D., Einarsson, S. V., and Knapp, A. N., Field-based nitrate assimilation isotope effect estimates from the Atlantic sector of the Subantarctic Southern Ocean. ASLO Summer online. (oral presentation)
2021
Rose, J. M., Thomas, R. K., Haraguchi, L., Einarsson, S. V., Forrer, H. J., Fawcett, S.E., Chappell, P. D., Knapp, A. N., and Kranz, S. A., Nitrate assimilation isotope effect estimates from incubation experiments of natural communities in the Atlantic sector of the Subantarctic under light and iron stress. ASLO Summer online. (oral presentation)
2020
Forrer, H. J., Bornman, T. G., Knapp, A. N., Thomas, R. K., Waterworth. S. C., Dorrington, R. A., Fawcett, S. E. Towards an improved understanding of the biological pump: Phytoplankton group-specific contributions to carbon and nitrogen cycling across the Subantarctic Indian Sector, Ocean Sciences San Diego, USA (oral presentation, presenting author)
2019
Thomas, R. K., Fawcett, S. E., Forrer, H. J., Knapp, A. N., Field-based estimates of the 15N and 18O isotope effects of nitrate assimilation in the Southern Ocean. ASLO, San Juan, Puerto Rico (poster presentation)
2018
Forrer, H.J., Bornman, T.G., Waterworth. S.C., Knapp, A.N., Thomas, R.K., Dorrington, RA., Fawcett, S.E., Phytoplankton group-specific contributions to the Subantarctic biological pump. Polar2018, Davos, Switzerland. (oral presentation, presenting author)
2018
Forrer, H.J., Bornman, T.G., Waterworth. S.C., Knapp, A.N., Thomas, R.K., Dorrington, RA., Fawcett, S.E., Phytoplankton group-specific contributions to the Subantarctic biological pump. South African National Antarctic Program Symposium, Hermanus, South Africa. (oral presentation, presenting author)
2017
Fawcett, S.E., Smart, S.M., Mdutyana, M., Forrer, H. J., Philibert, R., Thomalla, S.J., Kemeny, P.C., Ward, B.B., Sigman, D.M., The upper ocean nitrogen cycle in the Atlantic Southern Ocean. Goldschmidt. (oral presentation)