The rise of salinity caused the many effects on the marine ecosystem, such as the breeding areas, nursery areas and marine biological community structure in Laizhou Bay, etc.

Phytoplankton is the main food to the bivalve filter-feeders and the marine primary producer, so the impacts on the phytoplankton community by scallop culture deserve studying.

Community response: Each eustatic cycle will result in reorganization of benthic Marine communities, forming a new biotic assemblage.