Abiotic factors and primary production by phytoplankton and microphytobenthos was studied in the turbid Westeschelde estuary. Because of the high turbidity and high nutrient concentrations primary production by phytoplankton is light-limited. In the inner and central parts of the estuary maximum rates of primary production were therefore measured during the summer, whereas in the more marine part spring and autumn bloom were observed. Organic loading is high, causing near anaerobic conditions upstream in the river Schelde. Because of this there were no important phytoplankton grazers in this part of the estuary and hence the grazing pressure on phytoplankton was minimal. As this reduced losses, biomass is maximal in the river Schelde, despite the very low growth rates.
On a number of occasions, primary production by benthic micro-algae on intertidal flats was studied. Comparison of their rates of primary production to phytoplankton production in the same period led to the conclusion that the contribution to total primary production by benthic algae was small. The main reason for this is that the photosynthetic activity declines rapidly after the flats emerged from the water. It is argued that CO2-limitation could only be partially responsible for the noticed decrease in activity.
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Billen, G., M. Somville, E. De Becker & P. Servais, 1985. A nitrogen budget of the Scheldt hydrographical basin. Neth. Sea. Res. 19: 223–230.
Billen, G., C. Lancelot, E. de Becker & P. Servais, 1988. Modelling microbial processes (phyto- and bacterioplankton) in the Schelde Estuary. Hydrobiol. Bull. 22: 43–55.
Bokhorst, M, 1988. Inventarisatie van een aantal a-biotische factoren in de Westerschelde. Delta Institute for Hydrobiological Research, studentenverslag D6–1988.
Cloern, J. E., 1987. Turbidity as a control on phytoplankton biomass and productivity in estuaries. Cont. Shelf Res. 7: 1367–1381.
Cole, B. E. & J. E. Cloern, 1984. Significance of biomass and light availability to phytoplankton productivity in San Francisco Bay. Mar. Ecol. Prog. Ser. 17: 15–24.
Cole, B. E. & J. E. Cloern, 1987. An emperical model for estimating phytoplankton productivity in estuaries. Mar. Ecol. Prog. Ser. 36: 299–305.
Colijn, F., 1983. Primary production in the Ems-Dollard estuary. Ph.D-thesis, University of Groningen.
De Jong, S. A., P. A. G. Holman, A. J. J. Sandee & E. J. Wagenvoort 1990. Primary production of benthic microalgae in the Oosterschelde Estuary (S. W. Netherlands). Eindrapport BALANS, Delta Institute for Hydrobiological Research, pp. 221–223.
De Pauw, C. (1975). Bijdrage tot kennis aan bet milieu en plankton in het Westerschelde estuarium. Ph.D-thesis State University of Ghent (Belgium, in Dutch).
Eilers, P. H. C. & J. C. H. Peeters, 1988. A model for the relationship between light intensity and the rate of photosynthesis in phytoplankton. Ecol. Model. 42: 199–215.
Emerson, S., 1975. Chemical enhanced CO2 gas exchange in a eutrophic lake, a general model. Limnol. Oceanogr. 20: 743–753.
Froelich, P. N., 1988. Kinetic control of dissolved phosphate in natural rivers and estuaries: A primer on the phosphate buffer mechanism. Limnol. Oceanogr. 33: 649–668.
Gieskes, W. W. C., G. W. Kraay, A. Nontji, D. Setiapermana & Sutomo, 1988. Monsoonal alteration of a mixed and layered structure in the phytoplankton of the euphotic zone of the Banda Sea (Indonesia), a mathematical analysis of algal pigment fingerprints. Neth. J. Sea Res. 22: 435–467.
Gillbricht, M., 1988. Phytoplankton and nutrients in the Helgoland region. Helgolander Meeresunters. 22: 435–467.
Grobbelaar, J. U., 1990. Modelling phytoplankton productivity in turbid waters with small euphotic to mixing ratios. J. Plankton Res. 12: 923–931.
Heip, C., 1988. Biota and abiotic environment in the Westerschelde estuary. Hydrobiol. Bull. 22: 31–34.
Heip, C., 1989. The ecology of the estuaries of Rhine, Meuse and Scheldt in The Netherlands. Scient. Mar. 53: 457–463.
Hummel, H. & C. Bakker, 1988. Introduction into the Schelde Symposium. Hydrobiol. Bull. 22: 5.
Kirk, J. T. O., 1983. Light and photosynthesis in aquatic ecosystems. Cambridge University Press.
Klepper, O. (1988). A model of carbon flows in relation to macrobenthic food supply in the Oosterschelde estuary (S.W. Netherlands). Ph.D-thesis, University of Wageningen, The Netherlands.
Kromkamp, J & J. Peene. On the net growth of phytoplankton in the turbid, eutrophic Westerschelde Estuary (The Netherlands). Mar. Ecol. Prog. Ser. (in press).
Nienhuis, P. H., E. A. M. J. Daemen, S. A. De Jong & P A. G. De Jong, 1985. Biomass and production of microphytobenthos. Progress Report 1985, Delta Institute for Hydrobiological Research.
Pinckey, J. & R. G. Zingmark (1991). Effects of tidal stage and sun angles on intertidal benthic microalgal productivity. Mar. Ecol. Prog. Ser. 76: 81–89.
Revsbech, N. P & B. B. Jorgensen, 1983. Photosynthesis of benthic microflora measured with high spatial resolution by the oxygen microprofile method: capabiltities and limitations of the method. Limnol. Oceanogr. 28: 1062–1074.
Soetaert, K., P. M. J. Herman & J. Kromkamp, 1994. Living in the twilight: estimating net phytoplankton growth in the Westerschelde estuary (the Netherlands) by means of an global ecosystem model (MOSES). J. Plankton Res. 16: 1277–1301.
Soetaert, K & P. Van Rijswijk, 1993. Spatial and temporal changes of the zooplankton in the Westerschelde estuary. Mar. Ecol. Prog. Ser. 97: 47–59.
Soetaert, K & P. M. J. Herman, 1995. Carbon flows in the Westerschelde estuary (The Netherlands) evaluated by means of an ecosystem model (MOSES). Hydrobiologia 311(Dev. Hydrobiol. 110): 247–266.
Sullivan, M. & C. Moncreiff, 1988. Primary production of edaphic algal communities in a Mississippi salt marsh. J. Phycol. 24: 49–58.
Van Spaendonk, A., J. Kromkamp & P. De Visscher, 1993. Primary production of phytoplankton in the turbid, coastal plain estuary De Westerschelde (The Netherlands). Neth. J. Sea Res. 31: 267–279.
Vegter, F. & P. R. M. De Visscher, 1984. Phytoplankton primary production in brackish lake Grevelingen (S.W. Netherlands) during 1976–1981. Neth. J. Sea Res. 18: 246–259.
Wetsteyn, L. P. M. J. & J. Kromkamp, 1994. Turbidity, nutrients and phytoplankton primary production in the Oosterschelde (The Netherlands) before, during and after a large-scale coastal engineering project (1980–1990). Hydrobiologia 282/283 (Dev. Hydrobiol. 97): 61–78.
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Kromkamp, J., Peene, J., van Rijswijk, P. et al. Nutrients, light and primary production by phytoplankton and microphytobenthos in the eutrophic, turbid Westerschelde estuary (The Netherlands). Hydrobiologia 311, 9–19 (1995). https://doi.org/10.1007/BF00008567
- Westerschelde estuary
- primary production