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Published January 30, 2023 | Version v1
Poster Open

The west Greenland shelf (64.7-70.6 °N) plankton community and downward carbon flux during summer – an Atlantic influenced ecosystem?

  • 1. UiT The Arctic University of Norway
  • 2. Technical University of Denmark, Lyngby, Denmark
  • 3. Institute of Oceanology Polish Academy of Sciences, Sopot, Poland

Description

On the West Greenland Shelf (64.7-70.6 °N), Atlantic derived water flows northwards. This water gradually cools and becomes fresher at the surface, while it mixes with cold Baffin Bay Polar Waters (BBPW) at depth. We conducted a field study in August 2021 and investigated potential effects of these lateral changes in the water masses on the pelagic system. In particular, we studied how it affects the concentration of nitrate, suspended chlorophyll a (Chl a) and particulate organic carbon (POC), as well as the downward flux of POC and the protist community. We investigate here how the plankton communities and the quality and quantity of the downward carbon flux is linked to different water masses on the West Greenland Shelf.
This helps to better understand how intensified Atlantic influence may change the system.

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Poster_WiedmannIngrid_FINAL.pdf

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Additional details

Funding

ECOTIP – Arctic biodiversity change and its consequences: Assessing, monitoring and predicting the effects of ecosystem tipping cascades on marine ecosystem services and dependent human systems 869383
European Commission