Ice-fuelled food webs in the Polar Oceans

The Arctic Ocean is undergoing substantial warming and sea ice loss which are likely to cause changes in primary production, export fluxes and productivity of the Arctic marine ecosystems. Yet, we lack sufficient information about the ecosystem productivity, organic carbon cycling and cryo-pelago-be...

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Bibliographic Details
Main Authors: Flores, Hauke, Graeve, Martin, David, Carmen, Lange, Benjamin, Ehrlich, Julia, Hardge, Kristin, Peeken, Ilka, Lebreton, Benoit, Niehoff, Barbara, Krumpen, Thomas, Rabe, Benjamin, Kunz, Kristina, van Franeker, Jan Andries, Metfies, Katja, Brandt, Angelika
Format: Conference Object
Language:unknown
Published: 2018
Subjects:
Arctic
Arctic Ocean
Svalbard
Yermak Plateau
Breaker
IASC
International Arctic Science Committee
Sea ice
Yermak plateau
Zooplankton
ice covered areas
Online Access:https://epic.awi.de/id/eprint/56154/
https://epic.awi.de/id/eprint/56154/1/Flores_ice-fuelled_food-webs_0497.pdf
https://hdl.handle.net/10013/epic.a5d5033d-3211-45a8-a23d-8729c47d71de
https://hdl.handle.net/
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Summary:The Arctic Ocean is undergoing substantial warming and sea ice loss which are likely to cause changes in primary production, export fluxes and productivity of the Arctic marine ecosystems. Yet, we lack sufficient information about the ecosystem productivity, organic carbon cycling and cryo-pelago-benthic coupling processes in the Arctic Ocean. Particularly such information is scarce for deep Arctic basins and the spring to summer transition time. Our aim was to provide carbon budget estimations under different regimes and bloom development stages in the region north of Svalbard. We conducted ecological and biogeochemical early spring process studies in sea ice covered areas, from the shelf to the basins of the European Arctic margin and on the Yermak Plateau during the TRANSSIZ cruise PS 92 on the ice breaker R/V Polarstern in May/June 2015. We identified the potential characteristics of carbon production of primary producers in the sea ice and water column, and secondary production of zooplankton and benthos. We looked into the organic carbon production fate and export, including respiration and burial, as well as identified similarities and differences in ecosystem functioning along topography- , sea ice- and water mass-related gradients. This scientific initiative was undertaken by Arctic in Rapid Transition (ART) International Arctic Science Committee (IASC) network .

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