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Article Reference application/x-troff-ms Nutrient dynamics and phytoplankton development along an estuary-coastal zone continuum: A model study.
This study presents a first attempt to quantify the biogeochemical transformations and fluxes of carbon and nutrients along the entire mixing zone of the shallow, tidally-dominated estuary–coastal zone continuum of the Scheldt (Belgium/The Netherlands). A fully transient, two-dimensional, nested-grid hydrodynamic model of the continuum is coupled to the biogeochemical MIRO model for the coastal zone and the CONTRASTE model for the estuary. Transient model simulations are performed with a high spatial (80–750 m) and temporal (30 min) resolution over a period of one year (January–December 1995). The high temporal resolution allows including the short-term variability triggered by the tides, the freshwater discharge and the wind stress. System scale simulations provide time series of nutrient transformations and fluxes along the entire estuary–coastal zone continuum, as well as highly resolved nutrient inventories for the estuarine and the coastal zone sub-domains. Simulation results reveal that the balance between highly variable estuarine nutrient inputs and physical constrains set by the unsteady residual transport field exert an important control on the magnitude and succession of phytoplankton blooms and the ecosystem structure in the coastal zone. In addition, they suggest that the poorly surveyed estuarine–coastal zone interface plays a central role in the continuum. In this dynamic area, marked spatial concentration gradients develop and episodically lead to a reversal of material fluxes from the coast into the estuary. During distinct episodes of the productive period, euryhaline coastal diatoms intrude far upstream into the saline estuary. This intrusion reduces the estuarine nutrient concentrations and export fluxes, thereby reinforcing the nutrient limitation in the coastal area. As a consequence, the estuarine filter does not operate independently from the processes in the coastal zone. The dynamic interplay between the two ecosystems and the intense process rates operating at their transition, therefore, strongly supports our continuum approach.
Located in Library / RBINS Staff Publications
Misc Reference Octet Stream Nutrient limitation in an Andean brown food web: effects of C, N, P addition on leaf-litter ants and mesofauna.
Located in Library / RBINS Staff Publications
Incollection Reference Nutrient recycling starts in the canopy: the secretive action of termites.
Located in Library / RBINS Staff Publications
Inbook Reference Nutrient Recycling Starts in the Canopy: The Secretive Action of Termites
Located in Library / RBINS Staff Publications
Inproceedings Reference Obernkirchener zandsteen in Nederland en Vlaanderen
Located in Library / RBINS Staff Publications 2021
Book Reference Observations of Inland Water Biodiversity: Progress, Needs and Priorities
Located in Library / RBINS Staff Publications 2016
Article Reference Observations on the Pliocene sediments exposed at Antwerp International Airport (Northern Belgium) constrains the stratigraphic position of the Broechem fauna
Located in Library / RBINS Staff Publications 2020
Article Reference Observations on the reproductive biology of Laurentophryne parkeri (Laurent, 1950) based on the holotype
Located in Library / RBINS Staff Publications 2017
Article Reference Observations sur le Frasnien de Pepinster et de Trooz
Located in Library / RBINS Staff Publications
Article Reference Observations sur les dents de squelettes protohistoriques provenant de l'Upemba (Zaïre)
Located in Library / No RBINS Staff publications