. "EXECUTIVE SUMMARY." Stemming the Tide: Controlling Introductions of Nonindigenous Species by Ships' Ballast Water. Washington, DC: The National Academies Press, 1996.
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Recommendation for the member states of IMO. In future discussions and updates of the existing voluntary guidelines (IMO Assembly Resolution A.774(18), 1993), consideration should be given to the maintenance of appropriate logs and records of ballast water movements and any management practices used. These data could be valuable when used in conjunction with basic water-quality measurements to verify that ballast water has been effectively managed.
