title: Abundance and Community Composition of Bacterioplankton in the Northern South China Sea During Winter: Geographic Position and Water Layer Influences
design: Bacterioplankton samples were collected from three water layers, including the surface (5 m), plankton-rich water layer (75 m), and the bottom of the euphotic layer (200 m) at three different hydrologic condition stations: the CS, SB, and KI in December 2015.