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News

NCCOS Climate Vulnerability Work Shared at Interna...

NCCOS scientists from the human dimensions team presented completed and ongoing work at the 22nd International Symposium on Society and Resource Management (ISSRM), which took place June 22-26 in Houghton, ...
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NCCOS Science Leads to International Coral Conserv...

A group of prominent marine environmental experts recently committed to working with government leaders of Palau, Micronesia, and the Marshall Islandson coral conservation. The group pledged to provide their expertise ...
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NCCOS Leads Key Topics at International Coral Reef...

This week, staff from the National Centers for Coastal Ocean Science (NCCOS) led special sessions and gave individual presentations at the 13th International Coral Reef Symposium in Honolulu, Hawaii. The ...
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Predicting Ocean Acidification and Hypoxia with We...

The California Current System (CCS) is among the most biologically productive regions of the world's oceans, but upwelling of coastal waters creates vulnerability to ocean acidification and hypoxia (OAH), which ...
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Keeping Up With Rising Seas

Scientists predicted wetland soil accretion (or growth) rates in relation to predicted sea level riseusing a model and data from numerous tidal salt and freshwater wetlands around the United States ...
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Harmful Algal Bloom Action Plan Developed for Long...

A public symposium and expert workshop was held on Long Island, NY, May 17–18, 2016with the goal of developing a harmful algal bloom (HAB) action plan for Suffolk County. Three ...
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2016 NOAA Bronze and Distinguished Career Awards H...

NOAA Administrator Dr. Kathryn Sullivan presented the 2016 Bronze Medal and Distinguished Career Awards to esteemed recipients at a ceremony held atNOAA's Silver Spring headquarters on May 24, 2016. The ...
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NCCOS Living Shorelines Research Attracts Internat...

A delegation from the Ecosystem Conservation Society of Japan (ECS-J) recently visited the NCCOS laboratory in Beaufort, NC to learn about living shorelines. ECS-J is the largest conservation group in ...
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Together Hypoxia and Ocean Acidification Equal a D...

Conditions resulting in low dissolved oxygen (DO) in marine systems, also known as hypoxia, are a commonoccurrenceinoceans around the world. Ocean acidification(OA), which results in lower pH, is a newer ...
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Can Mesophotic Coral Ecosystems Serve as Lifeboats...

On May 24, 2016, the United Nations Environment Programme released a new report on mesophotic coral ecosystems (MCEs) during a coral reef media roundtable at the second session of the ...
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Data & Publications

The response of runoff and sediment loading in the Apalachicola River, Florida to climate and land use land cover change

The response of runoff and sediment loading in the Apalachicola River under projected climate change scenarios and land use land cover (LULC) change is evaluated. A hydrologic model using the Soil and Water Assessment Tool was developed for the Apalachicola ...
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The role of winter-spring wind and other factors controlling summer hypoxia in Chesapeake Bay

We examined the processes influencing summer hypoxia in the mainstem portion of Chesapeake Bay. The analysis was based on the Chesapeake Bay Monitoring Program data collected between 1985 and 2007. Self-organizing map (SOM) analysis indicates that bottom water dissolved oxygen ...
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Tidal hydrodynamics under future sea level rise and coastal morphology in the Northern Gulf of Mexico

This study examines the integrated influence of sea level rise (SLR) and future morphology on tidal hydrodynamics along the Northern Gulf of Mexico (NGOM) coast including seven embayments and three ecologically and economically significant estuaries. A large-domain hydrodynamic model was ...
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Transgenerational exposure of North Atlantic bivalves to ocean acidification renders offspring more vulnerable to low pH and additional stressors

While early life-stage marine bivalves are vulnerable to ocean acidification, effects over successive generations are poorly characterized. The objective of this work was to assess the transgenerational efects of ocean acidifcation on two species of North Atlantic bivalve shellfsh, Mercenaria ...
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U.S. Shrimp Market Integration

Recent supply shocks in the Gulf of Mexico—including hurricanes, the Deepwater Horizon oil spill, and the seasonal appearance of a large dead zone of low oxygen water (hypoxia)—have raised concerns about the economic viability of the U.S. shrimp fishery. The ...
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Using Multiple Watershed Models to Predict Water, Nitrogen, and Phosphorus Discharges to the Patuxent Estuary

We analyzed an ensemble of watershed models that predict flow, nitrogen, and phosphorus discharges. The models differed in scope and complexity and used different input data, but all had been applied to evaluate human impacts on discharges to the Patuxent ...
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Variability of biogeochemical processes and physical transport in a partially stratified estuary: a box-modeling analysis

Regional, seasonal, and interannual variations of freshwater inputs, biogeochemical transformations, and pelagic-benthic interactions were examined in the Patuxent River estuary. Monthly rates of net biogeochemical production (or consumption) and physical transport of carbon, oxygen, and nutrients were calculated for 6 ...
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Variations in chemical speciation and reactivity of phosphorus between suspended-particles and surface-sediment in seasonal hypoxia-influenced Green Bay

Water, suspended-particles, and surface-sediment samples were collected from Green Bay, Lake Michigan, for the measurements of phosphorus (P) species, including dissolved/particulate-P, inorganic/organic-P, and five different forms of particulate-P, namely exchangeable- or labile-P (Ex-P), iron-bound-P (Fe-P), biogenic-apatite and/or CaCO3-associated-P (CFA-P), organic-P ...
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Vulnerability of early life stage Northwest Atlantic forage fish to ocean acidification and low oxygen

Global oceans are undergoing acidification and deoxygenation, yet the concurrent effects of low oxygen and acidification on marine fish are unknown. This study quantified the separate and combined effects of low pH and low oxygen on 4 vital early life-history ...
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Wind-driven lateral circulation in a stratified estuary and its effects on the along-channel flow

In the stratified rotating estuary of Chesapeake Bay, the Ekman transport drives a counterclockwise lateral circulation under down?estuary winds and a clockwise lateral circulation under up?estuary winds (looking into estuary). The clockwise circulation is about twice as strong as the ...
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