| phytoplankton |
microscopic plants that are generally at the mercy of the currents. Under certain conditions, Some are capable of altering their buoyancy and float nearer the surface, which gives them a competitive advantage for light and creates a surface bloom. Blooms, whether on the surface or in the water column, can lead to problems of dissolved oxygen.
출처: www.enr.state.nc.us/neuse/files/glossary.htm
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