Abstract:Features of the phytoplankton community were studied using the netz-phytoplankton data from the Sino-Germany Cooperative Project “Analysis and Modelling of the Bohai Sea Ecosystem”. Two station-grid-surveys were carried between 28~(th) April and 11~(th) May 1999 at 30 grid stations in the Bohai Sea to understand the ecosystem structure and functions. Phytoplankton was sampled using the standing net type III (mesh size 76μm, the standard sampling tool in Chinese marine phytoplankton studies) with a vertical ...