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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
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Structural characteristics of phytoplankton assemblages in tidal and non-tidal freshwater systems: a case study from the Schelde basin, Belgium
Muylaert, K.; Van Kerckvoorde, A.; Vyverman, W.; Sabbe, K. (1997). Structural characteristics of phytoplankton assemblages in tidal and non-tidal freshwater systems: a case study from the Schelde basin, Belgium. Freshwat. Biol. 38(2): 263-276. http://dx.doi.org/10.1046/j.1365-2427.1997.00211.x
In: Freshwater Biology. Blackwell: Oxford. ISSN 0046-5070; e-ISSN 1365-2427, meer
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| Trefwoorden |
Aquatic communities > Plankton > Phytoplankton
Environments > Aquatic environment > Marine environment > Intertidal environment
België, Zeeschelde [Marine Regions]
Brak water; Zoet water |
| Abstract |
- The Schelde estuary, its side basins and their tributaries were sampled in August 1995 and April 1996 for phytoplankton abundance, biomass and species composition. In order to clarify the underlying causes of differences in phytoplanton communities, the results were related to some important abiotic variables.
- Although species richness and diversity did not differ significantly between the riverine and the freshwater tidal stations, multivariate ordination techniques based on species abundances differentiate between these two ecosystems. While in the rivers phytoplankton standing stocks were as high in summer as in spring, standing stocks in the freshwater tidal estuary were significantly higher in the August samples.
- It is postulated that due to the resuspension of suspended solids by estuarine currents, light is limiting phytoplankton development in the freshwater tidal reaches in spring. At that stage, phytoplankton populations have already developed in the rivers. In summer, zooplankton prevent any further increase of riverine phytoplankton populations. In the freshwater tidal estuary, however, increased light levels, a higher residence time compared to rivers and the absence of zooplankton due to low oxygen concentrations permit phytoplankton populations to bloom.
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| Datasets (2) |
- Laboratory of Protistology and Aquatic Ecology (PAE). Ugent; De Vlaamse Waterweg NV: Belgium; (2020): OMES: Monitoring phytoplankton in the Zeeschelde., meer
- Fytoplankton dataset: rivier-, brak- en zoetwatergetijdegebonden stations in het bekken van het Schelde-estuarium (zomer 1995 en lente 1996), meer
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