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News

Some Coastal Fish May be Able to Adapt to an Acidi...

A new study shows that some coastal fish may be able to condition their offspring to tolerate seasonally acidifying environments, a result never shown before in wild fish populations. Experiments ...
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NOAA Data Support Groundwater Protection in Marsha...

Scientists from the National Centers for Coastal Ocean Science (NCCOS) and the Coastal Services Center recently recorded underwater video and collected sonar data off Kwajalein Atoll in the Republic of ...
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Chesapeake Bay Dead Zones Show Marine Worm Species...

A recent NCCOS-sponsored study conducted by the University of Maryland's Center for Environmental Science has found a hypoxia-induced shift in marine worm communities in Chesapeake Bay to ones made up ...
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Marine Shellfish Get a ‘One-Two Punch’...

Recent research has shown that ocean acidification and low oxygen interact to harm early life stages of bay scallops (Argopecten irradians) and hard clams (Mercenaria mercenaria). The study, conducted by ...
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Environmental Conditions Can Influence Development...

A recent NCCOS-sponsored study by the Smithsonian Institution showed that long-term exposure to daily fluctuations of hypoxia (low dissolved oxygen) increased Dermo disease (Perkinsus marinus) infection in previously uninfected eastern ...
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Ocean Sciences Meeting Highlights Results of Spons...

The 2014 Ocean Sciences Meeting showcased the reach and extent of research sponsored by NCCOS, including coral reefs, harmful algal blooms, hypoxia, applying research to management solutions, and integrated ecosystem ...
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Surface Elevation Trends Help Us Prepare for Clima...

Predicting future patterns of coastal inundation from sea level rise requires knowledge of changes in sea level and changes in elevation of land surface. Surface elevation tables - mechanical devices ...
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Climate-based Integrated Ecosystem Assessments for...

A special issue of the journal Oceanography published in December 2013 highlights a number of accomplishments and findings of the U.S. component of the Global Ocean Ecosystems Dynamics (GLOBEC) program ...
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NCCOS Scientist Receives Prestigious Award

Dr. William Sunda will be awarded the elite honor of fellow in the Geochemical Society and the European Association of Geochemistry. The award will be presented in June at the ...
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Evidence of Climate-related Algal Community Shifts...

At least seven species of marine algae previously restricted to more tropical waters have expanded their range northward to the temperate reefs off North Carolina. Reports of seven other new ...
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Data & Publications

Standardization and Application of an Index of Community Integrity for Waterbirds in the Chesapeake Bay, USA

In recent decades, there has been increasing interest in the application of ecological indices to assess ecosystem condition in response to anthropogenic activities. An Index of Waterbird Community Integrity was previously developed for the Chesapeake Bay, USA. However, the scoring ...
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Statistical correction of lidar-derived digital elevation models with multispectral airborne imagery in tidal marshes

Airborne light detection and ranging (lidar) is a valuable tool for collecting large amounts of elevation data across large areas; however, the limited ability to penetrate dense vegetation with lidar hinders its usefulness for measuring tidal marsh platforms. Methods to ...
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Support for Integrated Ecosystem Assessments of NOAA’s National Estuarine Research Reserve System (NERRS): Assessment of Ecological Condition and Stressor Impacts in Subtidal Waters of the Sapelo Island National Estuarine Research Reserve

A study was conducted in June 2009 to assess the current status of ecological condition and potential human-health risks throughout subtidal estuarine waters of the Sapelo Island National Estuarine Research Reserve (SINERR) along the coast of Georgia. Samples were collected ...
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Suspended sediment projections in Apalachicola Bay in response to altered river flow and sediment loads under climate change and sea level rise

Suspended sediments, or total suspended solids (TSS), are an important factor for oyster habitat. While high concentrations of suspended sediments can cause a reduction of oyster density, some level of suspended sediment is required to supply oysters with necessary nutrients ...
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Synthesis in estuarine and coastal ecological research: What is it, why is it important and how do we teach it?

During the last two decades, there has been growing interest in the integration of existing ideas and data to produce new synthetic models and hypotheses leading to discovery and advancement in estuarine and coastal science. This essay offers an integrated ...
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Temporal responses of coastal hypoxia to nutrient loading and physical controls

The incidence and intensity of hypoxic waters in coastal aquatic ecosystems has been expanding in recent decades coincident with eutrophication of the coastal zone. Worldwide, there is strong interest in reducing the size and duration of hypoxia in coastal waters, ...
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Terrain-driven unstructured mesh development through semi-automatic vertical feature extraction

A semi-automated vertical feature terrain extraction algorithm is described and applied to a two-dimensional, depth-integrated, shallow water equation inundation model. The extracted features describe what are commonly sub-mesh scale elevation details (ridge and valleys), which may be ignored in standard ...
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Texas Coastal Hypoxia Linked to Brazos River Discharge as Revealed by Oxygen Isotopes

Hypoxic conditions in the coastal waters off Texas (USA) were observed since the late 1970s, but little is known about the causes of stratification that contribute to hypoxia formation. Typically, this hypoxia is attributed to downcoast (southwestward) advection of waters ...
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The competing impacts of climate change and nutrient reductions on dissolved oxygen in Chesapeake Bay

The Chesapeake Bay region is projected to experience changes in temperature, sea level, and precipitation as a result of climate change. This research uses an estuarine-watershed hydrodynamic–biogeochemical modeling system along with projected mid-21st-century changes in temperature, freshwater flow, and sea ...
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The dynamic effects of sea level rise on low-gradient coastal landscapes: A review

Coastal responses to sea level rise (SLR) include inundation of wetlands, increased shoreline erosion, and increased flooding during storm events. Hydrodynamic parameters such as tidal ranges, tidal prisms, tidal asymmetries, increased flooding depths and inundation extents during storm events respond ...
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NCCOS delivers ecosystem science solutions for stewardship of the nation’s ocean and coastal resources, in direct support of NOS priorities, offices, and customers, and to sustain thriving coastal communities and economies.

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