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There have been many changes over the past few decades in the physical environment and ecosystem health of the Arctic Ocean, which is a sentinel of global warming. Bioactive trace metal data of important micronutrients for algae across the global ocean, such as iron (Fe) and manganese (Mn), are key indicators of biogeochemical change. However, trace metal data in the Arctic have been historically sparse and generally confined to ice-free regions. In 2015, three major GEOTRACES expeditions sought to resolve trace metal distributions across the Arctic, covering the western, eastern, and Canadian Arctic sectors. The diverse Arctic shelves displayed unique controls on Fe and Mn cycling due to differing chemical, biological, and physical properties. Here, we contrast the shallow, reducing Chukchi Shelf in the western Arctic with the tidally forced, advective Canadian Arctic and the deeper, less productive Barents Shelf in the eastern Arctic. Reductive dissolution and physical resuspension both proved to be large sources of Fe and Mn to the Arctic and the North Atlantic outflow. In the isolated intermediate and deep waters, one-dimensional scavenging in the western and eastern Arctic contrasts with vertical biological signals in Baffin Bay and the Labrador Sea.
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Actions and Challenges Toward Building Equity, Diversity, and Inclusion in Arctic Marine Science: The Case of the Canadian Research Icebreaker CCGS Amundsen
As the organization managing the scientific mandate of the Canadian research icebreaker CCGS Amundsen, Amundsen Science aims to create a safe and respectful research environment for every expedition participant aboard the vessel and to improve our relations with stake- and rightsholders of the Canadian North. Our current focus is on two primary equity, diversity, and inclusion (EDI) objectives specific to Arctic oceanographic expeditions: (1) to make the confined and remote workplace of the ship a mentally, emotionally, and physically secure environment, and (2) to integrate Indigenous-led research and to bring awareness of local (Inuit) culture during the expeditions.
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- Award ID(s):
- 2231647
- PAR ID:
- 10544065
- Publisher / Repository:
- The Oceanography Society
- Date Published:
- Journal Name:
- Oceanography
- Volume:
- 36
- Issue:
- 4
- ISSN:
- 1042-8275
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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- Free Publicly Accessible Full Text
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Accepted Manuscript1.0
- Journal Article:
- https://doi.org/10.5670/oceanog.2024.111
