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A new ballast water sampling device for sampling organisms above 50 micron
Gollasch, S. (2006). A new ballast water sampling device for sampling organisms above 50 micron. Aquat. Invasions 1(1): 46-50
In: Aquatic Invasions. Regional Euro-Asian Biological Invasions Centre (REABIC): Helsinki. ISSN 1798-6540, more
Peer reviewed article  

Available in Author 

Keywords
    Ballast tanks; Introduced species; Samplers; Marine; Brackish water; Fresh water

Author  Top 
  • Gollasch, S.

Abstract
    Many ballast water sampling programmes were undertaken in the past to document the number of individuals and variety of species arriving with ships. As no standard ballast water sampling tool exists various sampling devices were used during these studies. When sampling ballast water for compliance control with the Ballast Water Management Convention prepared by the International Maritime Organization a sampling device is needed which documents the number of organisms per water volume discharged. For organisms above 50 microns (in minimum dimension) less than 10 organisms per cubic meter of water are acceptable in the ballast water discharged. Further, ballast water samples need to be taken to assess the efficacy of ballast water treatment systems. As a result more than 1,000 liters of water need to be sampled - and this needs to be carried out multiple times as more than one sampling point, several replicates and various sampling occasions are required. This contribution describes a new sampling device for this ballast water sampling purpose.

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