Stratification summary
•The light environment controls the onset of the bloom in the shallow region, while stratification plays a more significant role in the deep region.
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•The magnitude of bloom is modified by both light and nutrients.
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•N/Si ratio is an important parameter for the nutrients limitation process and succession of phytoplankton community.
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•The basic pattern of lower-level trophic food-web dynamics in shallow and deeper area mirrors the sites A and B in the 1D model. A unique pattern develops in the tidal mixing frontal zone.
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•If no impact from advection, the development of weak stratification is critical for the springtime bloom; wind and heat flux can regulate this process.
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•The frontal zone is a possible area for the “second” diatom bloom.
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•Advection may be critical in determining changes in stratification and thus bloom formation, particularly in deeper waters