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Koppeling van primaire en bacteriële produktie in de Westerschelde: experiment met labeling met stabiele isotopen [Algal-bacterial coupling in the Western Scheldt (The Netherlands) assessed through isotope labeling]
Citatie
Van den Meersche K., Soetaert K. 2004: Algal-bacterial coupling in the Western Scheldt (The Netherlands) assessed through isotope labeling. Netherlands Institute of Ecology; Centre for Estuarine and Marine Ecology, Netherlands. Metadata available at http://mda.nioo.knaw.nl/imis.php?module=dataset&dasid=1224. https://marineinfo.org/id/dataset/1224
Beschikbaarheid: Vrij beschikbaar
The data are freely available to anybody and may be used for any purpose. Usage acknowledgement may be required Beschrijving
Carbon flows in a natural phytoplankton assemblage from the Western Scheldt estuary were followed by measuring changes in concentrations and stable isotope ratios in a 10-day period after addition of 13C to a batch experiment. meer
Water was collected from the euhaline reaches of the estuary, near Vlissingen, and incubated in a mesocosm setup. A phytoplankton bloom was initiated and followed up through the subsequent collapse. Coupling of algal and bacterial production was estimated from 13C-uptake in protist- and bacterial-specific polar lipid fatty acids (PLFA) with aid of a dynamic model. As expected, algal exudates turned out to be the dominant source for bacterial carbon production, showing a strong microbial loop. 60% of bacterial carbon production could be attributed to regenerated in situ primary production. Zooplankton showed a preference for phytoplankton material, but was able to switch to other food sources when the algal bloom collapsed. Scope Thema's: Biologie, Biologie > Benthos, Biologie > Invertebraten, Biologie > Planten Kernwoorden: Brak water, Algen, Bacteriën, Isotopic labelling, Koolstof 13, Microbial loop, ANE, Nederland, Westerschelde, , Bacteria, Copepoda Geografische spreiding ANE, Nederland, Westerschelde [Marine Regions] Spreiding in de tijd
4 Juni 2004 - 14 Juni 2004 Parameters
Alkalinity (pH) Ammonium Bicarbonaat (HCO3-) Carbon (C) per mesozooplankton Count of mesozooplankton Dissolved oxygen % saturation Free phosphate concentration (PO43-) Fytoplankton Methode Isotoop koolstof Isotoop stikstof (N) Isotope %15N-NH4 Isotope 13C in phospholipid fatty acid Isotope 13C-DIC from filtrated water Isotope 13C-DOC from filtrated water Isotope N-NH4o/oo Isotope N-NO3o/oo Microzooplankton Molar ratio C:N Nitraat (NO3-) Nitraat (NO3-) +Nitriet (NO2-) Nitriet (NO2-) Nitrogen (N) per mesozooplankton Opgeloste organische koolstof Organische koolstof Phospholipid-derived fatty acids (PLFAs) Pigment concentratie Salinity (titrimetric with silver nitrate) Silicaat Totaal Stikstof (N) Urea in seawater watertemperatuur Zooplankton isotopic signature 13C Zooplankton isotopic signature 15N Fytoplankton: Microscopic cell count Dataset status: Gestart
Data type: Data
Data oorsprong: Onderzoek: labo-experiment
Metadatarecord aangemaakt: 2007-04-18
Informatie laatst gewijzigd: 2009-10-08
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