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dc.contributor.authorMaguer, J.-F.
dc.contributor.authorWafar, M.V.M.
dc.contributor.authorMadec, C.
dc.contributor.authorMorin, P.
dc.contributor.authorDenn, E.E.
dc.date.accessioned2008-07-02T04:51:48Z
dc.date.available2008-07-02T04:51:48Z
dc.date.issued2004
dc.identifier.citationLimnology and Oceanography, Vol.49; 1108-1114p.
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/1123
dc.description.abstractDuring an intense (up to 33 x 10 sup(6) cells L sup(-1)) Alexandrium minutum bloom in the Penze estuary (France), total NO sub(3), NH sub(4), and PO sub(4) requirements of the bloom were, respectively, 184, 25, and 20 mu mol L sup(-1), with peak uptake rates of 43, 6, and 4.8 mu mol L sup(-1) d sup(-1). The measured ambient concentrations of NH sub(4) and PO sub(4) were far short of this peak demand, whereas those of NO sub(3) were far in excess, indicating that NO sub(3) supply is important for sustaining the bloom. Comparison of the measured NO3 uptake rates with advective fluxes indicates that a reduction of NO sub(3) concentrations in river waters to less than 200 Mu mol L sup(-1) would be necessary to contain the bloom in the Penze estuary. The role of NO3 was restricted to sustenance of the bloom, whereas warm conditions resulting in a water column stability seem to have triggered the bloom, and a self-shading, probably coupled with a phosphorus limitation, caused its decline
dc.language.isoen
dc.publisherAmerican Society of Limnology and Oceanography
dc.rightsCopyright [2004]. It is tried to respect the rights of the copyright holders to the best of the knowledge. If it is brought to our notice that the rights are violated then the item would be withdrawn.
dc.subjectalgal blooms
dc.subjectnitrogen
dc.subjectphosphorus
dc.subjectcomparative studies
dc.subjectAlexandrium minutum
dc.titleNitrogen and phosphorus requirements of an Alexandrium minutum bloom in the Penze' Estuary, France
dc.typeJournal Article


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