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pH and the possible buffering role of the expanding marine vegetation against ocean acidification in coastal waters of Greenland

General

Organisation
Project start
26.08.2013
Project end
27.09.2013
Type of project
Research
Project theme
Marine ecosystems
Project topic
Biology
Climate research
Ecosystems, aquatic
Primary production

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork region
Greenland, Mid-West
Fieldwork location

Geolocation is 64.1615238, -51.5733404

Fieldwork start
26.08.2013
Fieldwork end
27.09.2013

Project details

24.09.2018
Science / project plan

Large areas with carbonate corrosive sea water have recently been documented in the Canadian Arctic (Yamamoto-Kawai et al. 2009). In parallel, warming of the Arctic is predicted, and observed, to lead to a poleward spread of macrophyte beds, e.g. kelp forests, and increased primary production in shallow coastal waters (Müller et al. 2009, Kortsch et al. 2012, Krause-Jensen et al. 2012).

This expansion may have a hitherto unrealized buffer effect on acidification of coastal Arctic waters since photosynthetic activity of dense macrophyte stands may raise pH by more than a unit (Middelboe and Hansen 2007). As the long Arctic summer days support photosynthesis almost diurnally, macrophyte stands potentially form oases of elevated pH throughout summer, the critical period for the growth and development of calcifiers.

Site: Kobbefjord, Nuuk, Greenland

PI: Dorte Krause-Jensen

Fieldwork summary / photo blog: Link to ARC photo blog

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