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Fine sediments in the Oosterschelde tidal basin before and after partial closure ten Brinke, W.B.M.; Dronkers, J.; Mulder, J.P.M. (1994). Fine sediments in the Oosterschelde tidal basin before and after partial closure. Hydrobiologia 282: 41-56. https://dx.doi.org/10.1007/BF00024620 In: Hydrobiologia. Springer: The Hague. ISSN 0018-8158; e-ISSN 1573-5117, meer Is gerelateerd aan: ten Brinke, W.B.M.; Dronkers, J.; Mulder, J.P.M. (1994). Fine sediments in the Oosterschelde tidal basin before and after partial closure, in: Nienhuis, P.H. et al. The Oosterschelde Estuary (The Netherlands): A case-study of a changing ecosystem. Developments in Hydrobiology, 97: pp. 41-56. https://dx.doi.org/10.1007/978-94-011-1174-4_5, meer

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Beschikbaar in	Auteurs
VLIZ: Non-open access 252429 [ aanvragen ]

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Trefwoorden

Aquatic communities > Seston Mytilus edulis Linnaeus, 1758 [WoRMS] ANE, Nederland, Oosterschelde [Marine Regions] Marien/Kust; Brak water

Author keywords

Bayes; Budget; Eastern scheldt; Mytilus-edulis; Fine sediments; Changes; Estuary; Estuarium

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Auteurs		Top
ten Brinke, W.B.M., meer Dronkers, J., meer Mulder, J.P.M.

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Abstract

Changes in the budget of fine sediments in the Oosterschelde have been measured. These are related to the partial closure of the tidal basin. Before the engineering works, soil texture of most of the basin was sandy. After the works, unconsolidated fine sediments occurred at several locations throughout the Oosterschelde, mainly in the deeper parts of channels and on musselbeds. Fine sediments accumulate due to the reduction in current velocities. Most of the fine sediment comes from the North Sea; internal sources of fine sediments (primary production and erosion of intertidal flats) are of minor importance. Due to the works, the direction of net transport of fine sediments has changed from an export (before the works) into an import. A qualitative discussion of the underlying processes is presented. The changes in the budget of fine sediments have both positive and negative ecological consequences. Muddy deposits on dike slopes have reduced hard bottom macrozoobenthos. The reduced nutrients input due to reduced fresh water input has not resulted in a reduced primary production because it is counter-balanced by a decrease in turbidity.

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