Abstract Details
158 / 2024-09-10 12:55:09
Nutrient Regimes Shaping the Diatom-Dinoflagellate Interdecadal Succession Landscape in the Bohai Sea: N-Dia/Dino-D Multi-channel Flow Modeling
nutrients regime; phytoplankton; succession; modeling; Bohai Sea
Abstract Accepted
The composition of phytoplankton communities is critical for marine ecosystem stability and resilience. Anthropogenic activity has resulted in interdecadal succession in the phytoplankton community in the Bohai Sea (BS) over the last four decades, affecting ecosystem service functions and producing a variety of ecosystem health issues. We integrated the past five years’ findings on diatom-dinoflagellate succession, developed and validated an efficient Nutrients-Diatom/Dinoflagellate-Detritus (N-Dia/Dino-D) multi-channel flow model, and established an analysis method of "controlling factors → driving processes → modulating mechanisms." Our findings indicate that nutrient regime variations, including NO3- concentration, N:P ratio, and dissolved organic matter (DOM) accumulation, are controlling factors, whereas differences in kinetic processes, including uptake, assimilation, degeneration, excretion, and decomposition between diatoms and dinoflagellates, are driving processes. This study improves our understanding of how coastal phytoplankton composition responds to nutrient regimes associated with global climate change and their management.
Important Date
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Conference Date
Jan 13
2025
toJan 17
2025
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Sep 27 2024
Draft paper submission deadline
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Feb 17 2025
Registration deadline
Sponsored By
State Key Laboratory of Marine Environmental Science, Xiamen University
Organized By
State Key Laboratory of Marine Environmental Science, Xiamen University
Department of Earth Sciences, National Natural Science Foundation of China
Department of Earth Sciences, National Natural Science Foundation of China
Contact Information
- Kejing GU
- xm******@xmu.edu.cn
- +86*********
