8David M, Perkovic M. Ballast water sampling as a critical component of biological invasions risk management [J].MarinePollution Bulletin, 2004, 49: 313-318.
9Joachimsthal E L, lvanov V, TayJ H, et al. Flow cytometry and conventional enumeration of microorganisms in ships ballast water and marine samples[J]. Marine Pollution Bulletin, 2003, 46: 308-313.
