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

peer reviewed 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...

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Bibliographic Details
Published in:Nature Climate Change
Main Authors: Lannuzel, Delphine, Tedesco, Letizia, van Leeuwe, Maria, Campbell, Karley, Flores, Hauke, Delille, Bruno, Miller, Lisa, Stefels, Jacqueline, Assmy, Philipp, Bowman, Jeff, Brown, Kristina, Castellani, Giulia, Chierici, Melissa, Crabeck, Odile, Damm, Ellen, Else, Brent, Fransson, Agneta, Fripiat, François, Geilfus, Nicolas Xavier, Jacques, Caroline, Jones, Elizabeth, Kaartokallio, Hermanni, Kotovitch, Marie, Meiners, Klaus, Moreau, Sébastien, Nomura, Daiki, Peeken, Ilka, Rintala, Janne Markus, Steiner, Nadja, Tison, Jean Louis, Vancoppenolle, Martin, Van der Linden, Fanny, Vichi, Marcello, Wongpan, Pat
Other Authors: FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège
Format: Article in Journal/Newspaper
Language:English
Published: Nature Publishing Group 2020
Subjects:
Physical
chemical
mathematical & earth Sciences
Earth sciences & physical geography
Physique
chimie
mathématiques & sciences de la terre
Sciences de la terre & géographie physique
ice algae
Phytoplankton
Sea ice
Online Access:https://orbi.uliege.be/handle/2268/256307
https://doi.org/10.1038/s41558-020-00940-4
Description
Summary:peer reviewed 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.

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