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Silicic acid limitation, diatom bloom termination and carbon sequestration in an Arctic bloom

General

Project start
15.04.2017
Project end
15.06.2017
Type of project
Research
Project theme
Marine ecosystems
Project topic
Biology
Climate research

Fieldwork / Study

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

Geolocation is 64.577657506346, -51.043853759766

Fieldwork start
15.04.2017
Fieldwork end
15.06.2017

Project details

24.09.2018
Science / project plan

Depletion of silicic acid during the spring Arctic bloom leads to the end of the diatom phase, leading to mortality (or spore) of diatom cells and a loss of buoyancy resulting in a sharp increase in sedimentation rates, driving biogenic carbon sequestration. Weekly sampling during the pre-bloom, rise and fall of the spring bloom at the GF3 station, located in the outer-sill region in ~350 m depth just southeast of Nuuk, in Godthåbsfjord (Nuup Kangerlua).

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