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Projects

Is an Old Dune a More Resilient Dune? Assessing Ho...

We will evaluate whether naturally vegetated dunes are more resilient to storm surge and erosion than bare or planted human-made dunes. The gradual development of natural dunes over a long ...
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Keeping it in the System: Beneficial Use of Dredge...

We are developing a framework and process for matching dredging needs with opportunities for beneficial use of the sediment at local marshes, to help marshes keep up with sea level ...
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Living with Sea Level Rise in the Texas Coastal Be...

We are using modeling to identify the best locations along the Texas Coastal Bend where natural and nature-based features (NNBF) can be used to address the effects of sea level ...
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Marshes on the Margins: Developing Tidal Wetlands ...

We will investigate how the dynamic and heavily altered (e.g., through jetty construction or dredging) estuaries of Southern California will be affected by sea level rise. We will also identify ...
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Modeling, Visualizing, and Communicating Nor'easte...

We are working to inform and improve coastal resource management and resilience to extreme weather events (e.g., Nor’easters and hurricanes) whose impacts are magnified with sea level rise. The project ...
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Pavement Resilience to Sea Level Rise and Potentia...

We are investigating the coastal processes and hazards that damage roadway pavement. This work combines hydrodynamic, groundwater, and pavement models, along with an adaptation impact assessment, to understand overtopping and ...
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Predicting Impacts of Sea Level Rise in the Northe...

We are assessing the impacts of sea level rise and coastal storms on marshes and oyster habitats in the northern Gulf of Mexico through the development of predictive models that ...
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Quantifying the Benefits of Natural and Nature-bas...

We will analyze how marshes, submerged aquatic vegetation, and other natural features reduce wave energy and flood risks along Maryland’s Chesapeake Bay and Atlantic coastal bays. Our findings will inform ...
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Refining Ecosystem Model Inputs for Sea Level Rise...

We are enhancing a locally relevant marsh model with new field data on the impacts of sea level rise to allow coastal managers to evaluate the vulnerability and inform restoration ...
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Sea-Level Rise Modeling as a Catalyst for Effectiv...

In collaboration with The Nature Conservancy and the Hawaii Sentinel Site Cooperative, we are evaluating the effects of sea level rise of unique coastal habitats on the west coast of ...
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News

NCCOS Partners with CERF ‘Rising Tides’- Contribut...

NCCOS sponsored and participated in the 2021 Coastal and Estuarine Research Federation (CERF) 26th Biennial Conference, which was held virtually on November 1-4 and November 8-11, 2021. NCCOS scientists and ...
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Understanding Processes Driving Sand Dune Erosion ...

Coastal sand dunes are dynamic features that are continuously evolving due to winds and waves. The relative importance of these complex coastal processes that determine if sand is added to ...
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New Report Presents Framework for Advancing the Pr...

Marsh habitat on Swan Island, MD in 2020, two years post-restoration. Credit: NOAA NCCOS NCCOS and U.S. Army Corps of Engineers (USACE) scientists and engineers along with partners from Maryland ...
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Research Fills Gap in Understanding Greenhouse Gas...

New research by NCCOS scientists provides data to help fill a gap in our understanding of the fate of coastal wetland sediment carbon following disturbance events. Stored organic carbon in ...
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Researchers Evaluate Long-term Effect of Adding Sa...

NCCOS-sponsored research assessed the effectiveness of beach and dune nourishment on the morphological resilience of Dauphin Island, Alabama, for a 30-year period of beach management. Overall, the researchers found that ...
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Wetlands in Intermittently Closed Estuaries Can Bu...

Along the U.S. Pacific Coast, many estuaries are not permanently open to the ocean, but shift between open and closed states. A NCCOS-supported study tested the hypothesis that intermittently-closed estuary ...
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Communicating and Understanding Ecosystem Services...

NCCOS-funded researchers from six institutions report on insights and lessons learned from stakeholder engagement. The engagement was conducted during a multi-year transdisciplinary project focused on quantifying and communicating the benefits ...
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Human Influences on Beach Loss (and Growth) in Ora...

Beaches are highly dynamic and their shape and size is the product of sediment being transported to the coast by rivers and bluff erosion and then shaped by physical forces ...
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Management of Wetland Impoundments for Fish, Mosqu...

Suisun Marsh (CA) collage. Credit USDOI et al, 2011. In San Francisco Bay’s Suisun Marsh, NCCOS sponsored research compared the plant species diversity, abundance, and community composition among natural tidal ...
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Products

Maps, Tools & Applications

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Data & Publications

Effects of Local Shoreline and Subestuary Watershed Condition on Waterbird Community Integrity: Influences of Geospatial Scale and Season in the Chesapeake Bay

In many coastal regions throughout the world, there is increasing pressure to harden shorelines to protect human infrastructures against sea level rise, storm surge, and erosion. This study examines waterbird community integrity in relation to shoreline hardening and land use ...
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Effects of Local Watershed Land Use on Water Quality in Mid-Atlantic Coastal Bays and Subestuaries of the Chesapeake Bay

Nutrient inputs have degraded estuaries worldwide. We investigated the sources and effects of nutrient inputs by comparing water quality at shallow (< 2m deep) nearshore (within 200 m) locations in a total of 49 Chesapeake subestuaries and Mid-Atlantic coastal bays ...
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Effects of Shoreline Alteration and Other Stressors on Submerged Aquatic Vegetation in Subestuaries of Chesapeake Bay and the Mid-Atlantic Coastal Bays

Submerged aquatic vegetation (SAV) provides many important ecosystem functions, but SAV has been significantly reduced in many estuaries. We used spatial–statistical models to identify estuarine shoreline characteristics that explain variations in SAV abundance among subestuaries of the Chesapeake Bay and ...
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Effects of shoreline stabilization and environmental variables on benthic infaunal communities in the Lynnhaven River System of Chesapeake Bay

Coastlines worldwide are being altered due to shoreline hardening and stabilization and while highly altered systems are subject to change, variability exists in how shoreline hardening affects benthic communities depending on the landscape features of the system and regional production ...
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Environmental factors influencing d13C and d15N in three Chesapeake Bay fishes

Stable isotope analysis has become a common tool for mapping trophic relationships, describing foodweb changes, and assessing ecosystem health. Clear interpretation of stable isotopes is facilitated by understanding how environmental factors can affect isotopic values; in estuarine systems, these factors ...
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Feeding by Bluefish and Weakfish along Riprap-Hardened Shorelines: Comparisons with Adjacent Sandy Beach in Delaware Bay, USA

Shoreline hardening alters the morphology of the intertidal zone and has been shown to impact various measures of shore zone habitat quality. Diet composition and stomach fullness of two predatory fishes, the Bluefish Pomatomus saltatrix and Weakfish Cynoscion regalis, were ...
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Fish and Blue Crab Density along a Riprap-Sill-Hardened Shoreline: Comparisons with Spartina Marsh and Riprap

Wetland managers have historically considered riprap-sill structures (a type of “living shoreline” consisting of a rock sill that is placed low in the intertidal zone, with native vegetation planted between the sill and the shore) to be more ecologically sound ...
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Growth and Movements of Mummichogs (Fundulus heteroclitus) Along Armored and Vegetated Estuarine Shorelines

Alteration of estuarine shorelines associated with increased urbanization can significantly impact biota and food webs. This study determined the impact of shoreline alteration on growth and movement of the estuarine fish Fundulus heteroclitus in a tributary of the Delaware Coastal ...
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Habitat Affects Survival of Translocated Bay Scallops, Argopecten irradians concentricus (Say 1822), in Lower Chesapeake Bay

Bay scallop (Argopecten irradians) populations existed in Chesapeake Bay until 1933, when they declined dramatically due to a loss of seagrass habitat. Since then, there have been no documented populations within the Bay. However, some anecdotal observations of live bay ...
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Impact of Armored Shorelines on Shore-Zone Fish Density in a Mid-Atlantic, USA, Estuary: Modulation by Hypoxia and Temperature

Anthropogenic modifications of estuarine environments, including shoreline hardening and corresponding alteration of water quality, are accelerating worldwide as human population increases in coastal regions. Estuarine fish species inhabiting temperate ecosystems are adapted to extreme variations in environmental conditions including water ...
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