Publication Date
10-16-2024
Document Type
Article
Publication Title
Geophysical Research Letters
Volume
51
Issue
19
DOI
10.1029/2024GL110155
Abstract
To predict ecosystem change in the Arctic Ocean, understanding Arctic phytoplankton phenology is essential. We develop a marine ecosystem model focusing on phytoplankton dynamics and the competition for multiple resources based on knowledge from in situ data obtained in the Chukchi Sea. The model is designed to include the unique ecological characteristics of the Arctic Ocean. To the best of our knowledge, this is the first model successfully simulating the current paradigm for Arctic phytoplankton phenology, including both under-ice blooms and succession of phytoplankton groups. Sensitivity experiments show that the dominance of diatoms can be sustained by lateral transport of a high-silicate water mass (Pacific Winter Water). Experiments for future scenarios show that sea ice retreat drives a decrease in large diatoms and an increase in the other relatively small non-diatom groups. These results suggest that dominant phytoplankton groups can be shifted from diatoms to non-diatoms under ongoing Arctic Ocean sea ice retreat.
Funding Number
2132175
Funding Sponsor
Office of Energy Efficiency and Renewable Energy
Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Department
Moss Landing Marine Laboratories
Recommended Citation
Jang Geun Choi, Atsushi Matsuoka, Manfredi Manizza, Dustin Carroll, Stephanie Dutkiewicz, and Thomas Lippmann. "A New Ecosystem Model for Arctic Phytoplankton Phenology From Ice-Covered to Open-Water Periods: Implications for Future Sea Ice Retreat Scenarios" Geophysical Research Letters (2024). https://doi.org/10.1029/2024GL110155
