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Modelling benthic oxygen consumption and benthic-pelagic coupling at a shallow station in the southern North Sea Provoost, P.; Braeckman, U.; Van Gansbeke, D.; Moodley, L.; Soetaert, K.; Middelburg, J.J.; Vanaverbeke, J. (2013). Modelling benthic oxygen consumption and benthic-pelagic coupling at a shallow station in the southern North Sea. Est., Coast. and Shelf Sci. 120: 1-11. http://dx.doi.org/10.1016/j.ecss.2013.01.008 In: Estuarine, Coastal and Shelf Science. Academic Press: London; New York. ISSN 0272-7714; e-ISSN 1096-0015

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Beschikbaar in	Auteurs
VLIZ: Open Marine Archive 243784 [ download pdf ]

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Trefwoorden

Periodicity > Seasonality Respiration Phaeocystis Lagerheim, 1893 [WoRMS] ANE, Noordzee [Marine Regions] Marien/Kust

Author keywords

Benthic-pelagic coupling

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Auteurs		Top
Provoost, P. Braeckman, U. Van Gansbeke, D. Moodley, L.	Soetaert, K. Middelburg, J.J. Vanaverbeke, J.

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Abstract

A time-series of benthic oxygen consumption, water-column and sediment chlorophyll concentrations, and temperature in the southern North Sea was subjected to inverse modelling in order to study benthic-pelagic coupling in this coastal marine system. The application of a Markov Chain Monte Carlo (MCMC) on a simple box model allowed deriving deposition rates and temperature-dependent remineralization rates of both phytopigments and bulk carbon, as well as estimates of uncertainty for each of these processes. Together with organic matter availability, temperature had an important effect on benthic respiration rates thus delaying remineralization of spring bloom material until the late summer when temperatures were at their highest. The sediment at our station clearly acts as a buffer, removing large quantities of nutrients from the pelagic system during the spring bloom and only slowly releasing them back into the water column as temperatures increase later during summer.

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