The community and population dynamics of planktonic protists were investigated in a semi-closedmariculture waters for shrimp Penaeus japonicus in the suburb area of Qingdao.

• 以青岛近郊一半封闭的日本对虾养殖水体中的浮游原生生物为客体进行了较全面的生态学及生态毒理学研究与分析。