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Predicting the nutritional value of sea ice microalgae in a 'new Arctic' regime (AINSE PGRA Scholar)

Project Member(s): Petrou, K., Nielsen, D.

Funding or Partner Organisation: The Australian Nuclear Science and Technology Organisation (Australian Synchrotron Access Program (Beamtime))
The Australian Nuclear Science and Technology Organisation (Australian Synchrotron Access Program (Beamtime))

Start year: 2024

Summary: Arctic sea ice decline is one of the most visible manifestations of global climate change. The decline in land-fast ice extent and thinning of drift ice cover are well-documented, potentially representing a new sea ice regime in the Arctic. The ephemeral ice provides a habitat for sea ice microalgae, which contribute substantial energy and nutritional value to the Arctic marine food web. This project will use synchrotron-FTIR to explore how the nutritional value (biomolecular composition) of sea ice microalgal communities in land-fast and drift ice differ, providing estimates of future energy supply to the food web in a 'new Arctic'.

FOR Codes: Microbiology, Climate change impacts and adaptation, Biochemistry and cell biology, Expanding knowledge in the biological sciences, Ecosystem adaptation to climate change