26 March 2025 | 13:30 - 15:30 (MDT)
Open Session - HYBRID
Room: UMC Third Floor - 382
Organisers: Claudia Elena Schmidt (Helmholtz-Zentrum Hereon); Helmuth Thomas (Helmholtz-Zentrum Hereon); Sarina Niedzwiedz (University of Bremen)
Session Description:
Novel ecosystems are emerging in Arctic regions as a result of retreating or thinning sea ice. Changes in the physical conditions (e.g. exposure to waves, light penetration, nutrient supply, stratification and oxygen content) allow for the poleward movement of species distributions with subsequent impact on biodiversity through changed primary production and reorganization of coastal, pelagic and benthic communities. At the same time, anthropogenic and climate change related stressors have the potential to change the functionality and productivity of these emerging ecosystems. Uncertainties arise whether these ecosystems actually generate a valuable negative feedback on climate change through carbon sequestration. It is within the context of these uncertainties, that we invite contributions that are planning or already conducting fundamental and applied research into carbon production, export and sequestration across the full range of existing and emerging Arctic ecosystems. We particularly welcome contributions focusing on observational studies (in situ, paleo-oceanography, or remote sensing) or modelling approaches that estimate carbon sequestration in the past, at the present-day and in the future. Here, we aim to focus on quantifying the carbon sequestration potential of novel Arctic ecosystems associated with sea ice retreat and marginal ice zones and compare it to the paleo-oceanographic records of past sedimentation, productivity, ice cover and other environmental factors in coastal, fjord, shelf sea and open ocean ecosystems.
The session is organized by the Horizon2023 project SEA-Quester (Grant Agreement No. 101136480), focusing on the causes and consequences of emerging polar ecosystems and their potential for carbon sequestration.
Oral Presentations (during session):
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Poster Presentations (during Poster exhibit and session on Wed, 26 March):
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