Vlaams Instituut voor de Zee

platform voor marien onderzoek

In:

Open Marien Archief

Het Open Marien Archief van België (OMA) biedt vrije toegang tot de digitale publicaties over de Vlaamse kust en het Belgisch deel van de Noordzee, en alle andere mariene, estuariene en kustgebonden publicaties van Belgische auteurs en wetenschappers en van buitenlandse wetenschappers geaffilieerd aan een Belgische instelling.

Meer info

Nieuwe zoekopdracht
meld een fout in dit recordmandje (0): toevoegen | toon Print-vriendelijke versie

Autochthonous and allochthonous contributions to mesozooplankton diet in a tidal river and estuary: integrating carbon isotope and fatty acid constraints
Van den Meersche, K.; Van Rijswijk, P.; Soetaert, K.; Middelburg, J.J. (2009). Autochthonous and allochthonous contributions to mesozooplankton diet in a tidal river and estuary: integrating carbon isotope and fatty acid constraints. Limnol. Oceanogr. 54(1): 62-74. dx.doi.org/10.4319/lo.2009.54.1.0062
In: Limnology and Oceanography. American Society of Limnology and Oceanography: Lawrence. ISSN 0024-3590
Peer reviewed article

Ook gepubliceerd als
  • Van den Meersche, K.; Van Rijswijk, P.; Soetaert, K.; Middelburg, J.J. (2009). Autochthonous and allochthonous contributions to mesozooplankton diet in a tidal river and estuary: integrating carbon isotope and fatty acid constraints, in: Van den Meersche, K. (2009). Carbon flows in the planktonic food web of temperate estuaries: a combined approach using stable isotopes, biomarkers and modeling. pp. 73-96, meer

Beschikbaar in Auteurs 
    Vlaams Instituut voor de Zee: Open Repository 150014 [ download pdf ]

Trefwoorden
    Algen; Bacteriën; Begrazing; Biomassa; Diatomeeën; Diëten; Estuarien milieu; Fytoplankton; Koolstof isotopen; Opgelost organisch koolstof; Particulair organisch koolstof; Vetzuren; Zooplankton; Bacillariophyta [WoRMS]; Chlorophyta [WoRMS]; ANE, Nederland, Schelde-estuarium [gazetteer]; België, Schelde R. [gazetteer]; Marien; Brak water; Zoet water

Auteurs  Top 
  • Van den Meersche, K.
  • Van Rijswijk, P.
  • Soetaert, K.
  • Middelburg, J.J.

Abstract
    We examined the carbon sources used by bacteria and mesozooplankton in the Scheldt River and estuary (Belgium, The Netherlands) using a combined stable isotope and fatty acid composition approach. Water samples were collected monthly at six stations during 1 yr and analyzed for 13C of dissolved inorganic carbon, dissolved organic carbon (DOC), and particulate organic carbon (POC). Mesozooplankton was determined up to family, genus, or species level and analyzed for 13C and fatty acid content. Suspended particles were analyzed for phospholipid fatty acids and their 13C contents to estimate isotope ratios of phytoplankton groups and heterotrophic bacteria. The carbon isotope signatures of DOC, POC, and bacterial biomass were similar and significantly enriched relative to those of diatoms and green algae, pointing to allochthonous subsidies as an important carbon source for bacteria. The contribution of algae to zooplankton diets as estimated from isotope ratios and fatty acid profiles averaged 41% and 75% respectively, and did not differ significantly among stations, taxa, or age categories. Mesozooplankton relies primarily on grazing on phytoplankton and direct consumption of particulate organic matter. Mesozooplankton appears to receive little of its carbon from DOC via bacteria.

 Top | Auteurs