Effects of benthic diatoms, fluff layer, and sediment conditions on critical shear stress in a non-tidal coastal environment

Sixteen sediment samples were collected from a square grid (4×4) with a horizontal distance of about 150 m between positions in Århus Bay in the south-west Kattegat (14 to 15 m water depth). Critical shear stress (τc) was measured in all samples and related to sediment parameters: grain-sizes, organ...

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Veröffentlicht in:	Journal of the Marine Biological Association of the United Kingdom 2002-12, Vol.82 (6), p.929-936
Hauptverfasser:	Lund-Hansen, Lars Chresten, Laima, Mario, Mouritsen, Kim, Lam, Nguyen Ngoc, Hai, Doan Nhu
Format:	Artikel
Sprache:	eng
Schlagworte:	Chlorophyll Coastal environments Coastal oceanography, estuaries. Regional oceanography Earth sciences Earth, ocean, space Erosion rates Eutrophication Exact sciences and technology External geophysics Light Light penetration Marine Marine and continental quaternary Organic matter Physics of the oceans Plankton Porosity Research Article Sediment samplers Sediments Shear stress Soil erosion Surficial geology Tidal flats Water content Water depth
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Beschreibung
Zusammenfassung:	Sixteen sediment samples were collected from a square grid (4×4) with a horizontal distance of about 150 m between positions in Århus Bay in the south-west Kattegat (14 to 15 m water depth). Critical shear stress (τc) was measured in all samples and related to sediment parameters: grain-sizes, organic matter, water content, porosity, and chlorophyll-a (chl-a) content, in upper layers. Samples were divided into a low (A) τc group and a high (B) τc group in relation to an erosion rate. A significant (P
ISSN:	0025-3154 1469-7769
DOI:	10.1017/S0025315402006410