Nutrient Loading and Transformations in the Columbia River Estuary Determined by High-Resolution In Situ Sensors
@article{Gilbert2013NutrientLA, title={Nutrient Loading and Transformations in the Columbia River Estuary Determined by High-Resolution In Situ Sensors}, author={Melissa Gilbert and Joseph A. Needoba and Corey R. Koch and Andrew Barnard and Ant{\'o}nio M. Baptista}, journal={Estuaries and Coasts}, year={2013}, volume={36}, pages={708-727} }
The Columbia River estuary is characterized by relatively large tidal currents and water residence times of a few days or less. These and other environmental conditions tend to suppress water column productivity and favor the export of riverborne nutrients to the coastal ocean. However, hotspots of biological activity may allow for significant nutrient transformation and removal within the estuary, but these processes have previously been difficult to quantify due to the challenges of obtaining…
44 Citations
High-Frequency Concurrent Measurements in Watershed and Impaired Estuary Reveal Coupled DOC and Decoupled Nitrate Dynamics
- Environmental ScienceEstuaries and Coasts
- 2021
Rapid changes in land use, pollution inputs, and climate are altering the quantity, timing, and form of materials delivered from watersheds to estuaries. To better characterize these alterations…
Methane Dynamics Associated with Tidal Processes in the Lower Columbia River
- Environmental ScienceEstuaries and Coasts
- 2019
Tidally varying methane (CH4) concentrations in estuaries may arise from physical advection and by chemical effects tied to varying exposure to salinity. An investigation of spatial and temporal…
Benthic and planktonic inorganic nutrient processing rates at the interface between a river and lake
- Environmental ScienceBiogeochemistry
- 2021
The interface between lotic and lentic ecosystems is often a zone of intense metabolic activity, as primary production in streams and rivers can be light limited whereas nutrients often limit primary…
Turnover and release of P-, N-, Si-nutrients in the Mexicali Valley (Mexico): interactions between the lower Colorado River and adjacent ground- and surface water systems.
- Environmental ScienceThe Science of the total environment
- 2015
Phosphorus Forms in Sediments of a River-Dominated Estuary
- Environmental ScienceFront. Mar. Sci.
- 2018
Estuaries are biologically productive transition zones between land and sea that play a vital role in transforming, recycling, and sequestering nutrients and organic matter, thus influencing nutrient…
Benthic–pelagic coupling in the Gulf of Mexico hypoxic area: Sedimentary enhancement of hypoxic conditions and near bottom primary production
- Environmental Science
- 2014
Developing the First Operational Nutrient Observatory for Ecosystem, Climate, and Hazard Monitoring for NERACOOS
- Environmental Science
- 2015
An integrated nutrient observatory is being developed within the Northeastern Regional Association of Coastal Ocean Observing Systems (NERACOOS), capable of monitoring nutrient dynamics year-round at…
In situ, high-resolution time series of dissolved phosphate in Green Bay, Lake Michigan
- Environmental ScienceJournal of Great Lakes Research
- 2018
Exploring Ocean Biogeochemistry Using a Lab-on-Chip Phosphate Analyser on an Underwater Glider
- Environmental ScienceFrontiers in Marine Science
- 2021
The ability to make measurements of phosphate (PO43–) concentrations at temporal and spatial scales beyond those offered by shipboard observations offers new opportunities for investigations of the…
Seasonal Water Column NH4+ Cycling Along a Semi-arid Sub-tropical River–Estuary Continuum: Responses to Episodic Events and Drought Conditions
- Environmental ScienceEcosystems
- 2015
AbstractRiver–estuary continuums represent a dynamic range of environmental conditions in aquatic ecosystems, providing an ideal gradient for understanding changes in nitrogen (N) cycling. We…
References
SHOWING 1-10 OF 85 REFERENCES
Coastal Upwelling Supplies Oxygen-Depleted Water to the Columbia River Estuary
- Environmental SciencePloS one
- 2011
Based on a wind-forced supply mechanism, low DO events are probably common to the Columbia River and other regional estuaries and if conditions on the shelf deteriorate further, as observations and models predict, Pacific Northwest estuarine habitats could experience a decrease in environmental quality.
Nutrient cycling in the sub-tropical Brunswick estuary, Australia
- Environmental Science
- 2004
A combination of mixing plots, one-dimensional salt balance modelling, nutrient loading budgets, and benthic flux measurements were used to assess nutrient cycling pathways in the enriched…
Biogeochemical gradients in the lower Columbia River
- Environmental ScienceHydrobiologia
- 2004
AbstractWater, suspended particulate materials (SPM), and biota were sampled between June 14 and 22, 1992 at forty-five mid-channel sites along a downstream gradient in the lower 350 km of the…
Nutrient biogeochemistry in an upwelling-influenced estuary of the Pacific northwest (Tillamook Bay, Oregon, USA)
- Environmental Science
- 2003
Tillamook Bay, Oregon, is a drowned river estuary that receives freshwater input from 5 rivers and exchanges ocean water through a single channel. Similar to other western United States estuaries,…
Transformations of nutrients (N, P, Si) in the turbidity maximum zone of the Seine estuary and export to the sea
- Environmental Science
- 2010
Benthic metabolism and nutrient regeneration on the continental shelf of Eastern Massachusetts, USA
- Environmental Science
- 2001
Benthic metabolism and nutrient cycling were examined in depositional sediments of Broad Sound, Massachusetts Bay, Stellwagen Basin and Cape Cod Bay between 1990 and 1994 in water 16 to 76 m deep.…
Physical processes that enhance nutrient transport and primary productivity in the coastal and open ocean of the subarctic NE Pacific
- Environmental Science
- 2005
Biogeochemical cycling in an organic rich coastal marine basin—II. Nutrient sediment-water exchange processes
- Environmental Science
- 1981
Influence of a buoyant river plume on phytoplankton nutrient dynamics: What controls standing stocks and productivity?
- Environmental Science
- 2009
[1] The influence of the Columbia River plume on phytoplankton rates and biomass accumulation was examined using multiday deckboard incubations as part of the coastal ocean processes River Influences…