A field experiment with thin-layer capping was conducted in the Grenland fjords, Norway, for remediation in situ of mercury and dioxin-contaminated sediments. Experimental fields at 30 and 95 m depth were capped with (i) powdered activated carbon (AC) mixed with clay (AC+cla`y), (ii) clay, and (iii) crushed limestone. Ecological effects on the benthic community and species-feeding guilds were s...

This Article is brought to you for free and open access by the Ocean, Earth & Atmospheric Sciences at ODU Digital Commons. It has been accepted for inclusion in OEAS Faculty Publications by an authorized administrator of ODU Digital Commons. For more information, please contact [email protected]. Repository Citation Burdige, Davd J.; Alperin, Marc J.; Homstead, Juliana; and Martens, Christ...

Organic carbon mineralization and nutrient cycling in benthic environments are critically important for their biogeochemical functioning, but poorly understood coastal upwelling systems. The main objective of this study was to determine oxygen fluxes a muddy sediment the Ria de Vigo (NW Iberian upwelling), by applying aquatic eddy covariance (AEC) technique during 2 campaigns different seasons ...

Phosphorus release from sediments can exacerbate the effect of eutrophication in coastal marine ecosystems. The flux of phosphorus from marine sediments to the overlying water is highly dependent on the redox conditions at the sediment-water interface. Bacteria are key players in the biological processes that release or retain phosphorus in marine sediments. To gain more insight in the role of ...

Benthic microbial communities contribute to nitrogen (N) cycling in coastal ecosystems through taxon-specific processes such as anammox, nitrification and N-fixation community attributed pathways denitrification. By measuring the total (DNA-based) active (RNA-based) surface sediment composition abundance activity profiles of key N-cycling genes a semi-enclosed embayment—Port Phillip Bay (PPB), ...

The current state of science and engineering related to analyzing wetlands overlooks the importance of transpiration and risks data misinterpretation. In response, we developed hydrologic and mass budgets for agricultural wetlands using electrical conductivity (EC) as a natural conservative tracer. We developed simple differential equations that quantify evaporation and transpiration rates usin...