A5034657572- Aquatic Ecosystems and Phytoplankton Dynamics
- Fish Ecology and Management Studies
- Soil and Water Nutrient Dynamics
- Water Quality and Pollution Assessment
- Aquatic Invertebrate Ecology and Behavior
- Marine and coastal ecosystems
- Hydrology and Watershed Management Studies
- Groundwater and Isotope Geochemistry
- Aquatic Ecosystems and Biodiversity
- Freshwater macroinvertebrate diversity and ecology
- Geochemistry and Elemental Analysis
- Water Treatment and Disinfection
- Heavy metals in environment
- Marine Toxins and Detection Methods
- Wastewater Treatment and Nitrogen Removal
Virginia Tech
2014-2022
Oxygen availability is decreasing in many lakes and reservoirs worldwide, raising the urgency for understanding how anoxia (low oxygen) affects coupled biogeochemical cycling, which has major implications water quality, food webs, ecosystem functioning. Although increasing magnitude prevalence of been documented freshwaters globally, challenges disentangling oxygen temperature responses have hindered assessment effects on carbon, nitrogen, phosphorus concentrations, stoichiometry (chemical...
The increasing availability and use of high-frequency water quality sensors has enabled unprecedented observations temporal variability in chemistry aquatic ecosystems. However, we remain limited by the prohibitive costs these probes to explore spatial natural systems. To overcome this challenge, have developed a novel auto-sampler system that sequentially pumps from up 12 different sites located within m radius single probe. This is able generate high frequency situ data multiple replicated...
Munger ZW, Carey CC, Gerling AB, Doubek JP, Hamre KD, McClure RP, Schreiber ME. 2018. Oxygenation and hydrologic controls on iron manganese mass budgets in a drinking-water reservoir. Lake Reserv Manage. 35:277–291. In seasonally stratified lakes reservoirs, fluctuating hypolimnetic oxygen conditions the watershed can influence retention of metals their exchange between sediments water column. particular, (Fe) (Mn) cycling at sediment–water interface be dynamic response to variability within...
Cyanobacterial blooms are increasing in waterbodies worldwide because of anthropogenic forcing. Most occur at the water's surface, but some cyanobacterial taxa, such as Planktothrix, able to modify their buoyancy access more favorable growing conditions deeper waters. Here, we used situ fluorometry examine vertical distribution and biomass Planktothrix a seasonally anoxic reservoir for 3 consecutive summers. We also collected depth profiles photosynthetically active radiation, temperature,...
Physical and chemical gradients across ecosystems, such as stream-to-lake continua within human-made reservoirs, provide valuable opportunities to examine how organisms respond changing environments. We quantified the rate of dinoflagellate recruitment a small reservoir test hypothesis that are controlled by different factors along continuum. predicted would be tightly coupled with physics in riverine zone closely related water chemistry lacustrine zone. For dominant genus reservoir,...
Oxygen availability is decreasing in many lakes and reservoirs worldwide, raising the urgency for understanding how anoxia (low oxygen) affects coupled biogeochemical cycling, which has major implications water quality, food webs, ecosystem functioning. Although increasing magnitude prevalence of been documented freshwaters globally, challenges disentangling oxygen temperature responses have hindered assessment effects on carbon, nitrogen, phosphorus concentrations, stoichiometry (chemical...
Oxygen availability is decreasing in many lakes and reservoirs worldwide, raising the urgency for understanding how anoxia (low oxygen) affects coupled biogeochemical cycling, which has major implications water quality, food webs, ecosystem functioning. Although increasing magnitude prevalence of been documented freshwaters globally, challenges disentangling oxygen temperature responses have hindered assessment effects on carbon, nitrogen, phosphorus concentrations, stoichiometry (chemical...
Earth and Space Science Open Archive This preprint has been submitted to is under consideration at Other. ESSOAr a venue for early communication or feedback before peer review. Data may be preliminary.Learn more about preprints preprintOpen AccessYou are viewing an older version [v1]Go new versionAnoxia decreases the magnitude of carbon, nitrogen, phosphorus sink in freshwatersAuthorsCayelan C.CareyiDPaul C.HansoniDR. QuinnThomasiDAlexandra B.GerlingAlexandria G.HounshelliDAbigail S....