The future of Arctic sea-ice biogeochemistry and ice-associated ecosystems

Delphine Lannuzel (), Letizia Tedesco, Maria Leeuwe, Karley Campbell, Hauke Flores, Bruno Delille, Lisa Miller, Jacqueline Stefels, Philipp Assmy, Jeff Bowman, Kristina Brown, Giulia Castellani, Melissa Chierici, Odile Crabeck, Ellen Damm, Brent Else, Agneta Fransson, François Fripiat, Nicolas-Xavier Geilfus, Caroline Jacques, Elizabeth Jones, Hermanni Kaartokallio, Marie Kotovitch, Klaus Meiners, Sébastien Moreau, Daiki Nomura, Ilka Peeken, Janne-Markus Rintala, Nadja Steiner, Jean-Louis Tison, Martin Vancoppenolle, Fanny Linden, Marcello Vichi and Pat Wongpan
Additional contact information
Delphine Lannuzel: University of Tasmania
Letizia Tedesco: Marine Research Centre
Maria Leeuwe: University of Groningen
Karley Campbell: The Arctic University of Norway
Hauke Flores: Alfred Wegener Institute
Bruno Delille: Unité d’océanographie chimique, FOCUS, Université de Liège
Lisa Miller: Fisheries and Oceans Canada
Jacqueline Stefels: University of Groningen
Philipp Assmy: Fram Centre
Jeff Bowman: University of California
Kristina Brown: Fisheries and Oceans Canada
Giulia Castellani: Alfred Wegener Institute
Melissa Chierici: Fram Centre
Odile Crabeck: University of East Anglia
Ellen Damm: Alfred Wegener Institute
Brent Else: University of Calgary
Agneta Fransson: Fram Centre
François Fripiat: Université Libre de Bruxelles
Nicolas-Xavier Geilfus: University of Manitoba
Caroline Jacques: DGES, Université Libre de Bruxelles
Elizabeth Jones: Fram Centre
Hermanni Kaartokallio: Marine Research Centre
Marie Kotovitch: Unité d’océanographie chimique, FOCUS, Université de Liège
Klaus Meiners: Australian Antarctic Division
Sébastien Moreau: Fram Centre
Daiki Nomura: Hokkaido University, Hakodate
Ilka Peeken: Alfred Wegener Institute
Janne-Markus Rintala: University of Helsinki
Nadja Steiner: Fisheries and Oceans Canada
Jean-Louis Tison: DGES, Université Libre de Bruxelles
Martin Vancoppenolle: Laboratoire d’Océanographie et du Climat, Institut Pierre-Simon Laplace
Fanny Linden: Unité d’océanographie chimique, FOCUS, Université de Liège
Marcello Vichi: University of Cape Town
Pat Wongpan: University of Tasmania

Nature Climate Change, 2020, vol. 10, issue 11, 983-992

Abstract: Abstract The Arctic sea-ice-scape is rapidly transforming. Increasing light penetration will initiate earlier seasonal primary production. This earlier growing season may be accompanied by an increase in ice algae and phytoplankton biomass, augmenting the emission of dimethylsulfide and capture of carbon dioxide. Secondary production may also increase on the shelves, although the loss of sea ice exacerbates the demise of sea-ice fauna, endemic fish and megafauna. Sea-ice loss may also deliver more methane to the atmosphere, but warmer ice may release fewer halogens, resulting in fewer ozone depletion events. The net changes in carbon drawdown are still highly uncertain. Despite large uncertainties in these assessments, we expect disruptive changes that warrant intensified long-term observations and modelling efforts.

Date: 2020
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DOI: 10.1038/s41558-020-00940-4

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