Now showing items 1-10 of 17
The impact of resuspension on sediment mercury dynamics, and methylmercury production and fate: A mesocosm study
The objective of this study was to investigate the effects of resuspension on the fate and bioaccumulation of mercury (THg) and methylmercury (MeHg) in shallow estuarine environments, using mesocosms. Two 4-week experiments ...
Biofiltration, water quality, and sediment processes
Effect of oysters Crassostrea virginica and bottom shear velocity on benthic–pelagic coupling and estuarine water quality
Increasing the biomass of bivalve suspensions feeders has been proposed as a means to improve water quality in eutrophic estuaries such as the Chesapeake Bay. However, water quality impacts are likely to be determined by ...
Combined water-column mixing and benthic boundary-layer flow in mesocosms: key for realistic benthic–pelagic coupling studies
We developed 2 scaled linked mesocosms that realistically mimicked both water-column mixing and benthic boundary-layer flow, enabling more realistic benthic–pelagic coupling experiments. The first was a ‘large’ 1000 l ...
Effects of shear stress and hard clams on seston, microphytobenthos, and nitrogen dynamics in mesocosms with tidal resuspension
To test the interacting effects of hard clams Mercenaria mercenaria and bottom shear stress on nutrient- and ecosystem dynamics, we performed a 4 wk experiment in six 1000 l shear turbulence resuspension mesocosms (STURM). ...
Effect of tidal resuspension on benthic–pelagic coupling in an experimental ecosystem study
To test the effect of sediment resuspension on the nutrient and ecosystem dynamics we performed a 4 wk experiment in three 1000 l shear-turbulence-resuspension-mesocosm (STURM) resuspension (R) tanks and three 1000 l ...
Eastern oyster, Crassostrea virginica, valve gape behavior under diel‑cycling hypoxia
Hypoxia and anoxia in many estuaries worldwide can cause a wide range of negative effects on animals that are directly exposed or indirectly influenced by food web interactions. Typically, experimental studies focus on ...
The effect of resuspension on the fate of total mercury and methyl mercury in a shallow estuarine ecosystem: a mesocosm study
Sediments are the major repository of mercury in estuaries and could be a significant source of Hg to the overlying water column via release from the solid phase during resuspension. There is, however, little information ...
Spatial and temporal scaling
Physical factors: Mixing and flow