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dc.contributor.authorCarney, K.J.
dc.contributor.authorBasurko, O.C.
dc.contributor.authorPazouki, K.
dc.contributor.authorMarsham, S.
dc.contributor.authorDelany, J.E.
dc.contributor.authorDesai, D.V.
dc.contributor.authorAnil, A.C.
dc.contributor.authorMesbahi, E.
dc.date.accessioned2013-04-01T11:03:51Z
dc.date.available2013-04-01T11:03:51Z
dc.date.issued2013
dc.identifier.citationMarine Pollution Bulletin, vol.68(1-2); 2013; 99-105
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/4275
dc.description.abstractAs implementation of the Ballast Water Convention draws nearer a major challenge is the development of protocols which accurately assess compliance with the D-2 Standard. Many factors affect the accuracy of assessment: e.g. large volume of ballast water, the shape, size and number of ballast tanks and the heterogeneous distribution of organisms within tanks. These factors hinder efforts to obtain samples that truly represent the total ballast water onboard a vessel. A known cell density of Tetraselmis suecica was added to a storage tank and sampled at discharge. The factors holding period, initial cell density and sampling interval affected representativeness. Most samples underestimated cell density, and some tanks with an initial cell density of 100 cells ml sup(-1) showed less than 10 cells ml sup(-1) at discharge, i.e. met the D-2 standard. This highlights difficulties in achieving sample representativeness and when applied to a real ballast tank this will be much harder to achieve.
dc.language.isoen
dc.publisherElsevier
dc.rightsAn edited version of this paper was published by Elsevier. Copyright [2013] Elsevier
dc.subjectballast
dc.subjectTetraselmis suecica
dc.titleDifficulties in obtaining representative samples for compliance with the Ballast Water Management Convention
dc.typeJournal Article


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