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News

Collaboration with New Scholar and NOAA Ocean Acid...

Oyster aquaculture structures at Mook Sea Farm, Wapole, Maine. Credit: Mook Sea Farm This past month, NCCOS welcomed a new Hollings Scholar, Madison Uetrecht, who will study the effects of ...
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Hardened Shorelines Decrease Small Fish and Invert...

New NCCOS-sponsored research shows that shoreline hardening has mostly negative effects on estuarine animals. This is evident both at a local scale directly next to a hardened shoreline and at ...
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Winners and Losers in the California Current under...

A NOAA-supported study projects that Dungeness crab and some commercial finfish species living on the sea floor may decline in future years due to increased ocean acidification in the California ...
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Shellfish Larvae Struggle in Fluctuating Oxygen an...

A study supported by NCCOS and the NOAA Ocean Acidification Program found thatinteracting effects of acidified and low oxygen (hypoxic) waters reducedthe survival, growth, and development of larval stages of ...
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Sensitivity of California Current Species to Ocean...

The waters along the west coast of North America are some of the most biologically productive in the world. Cool water from high latitudes flows southward from the edge of ...
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Living Shorelines Provide Better Fish Habitats

Riprap-sill shoreline at NCCOS lab in North Carolina. Credit: NOAA. In many places, estuarine shorelines are protected from erosion by riprap—a jumble of rock and other hard materials piled along ...
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Meeting Challenges in Estuarine and Coastal Ecosys...

Along with individual stressor-based research projects, NCCOS undertakes a broader ecosystem approach using larger, multidisciplinary research projects. A recent essay, authored in part by NCCOS-sponsored scientists, gives perspectives on challenges and ...
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Invasive Reed Prefers Altered Shorelines

An NCCOS-funded study found that the invasive non-native variety of the common reed Phragmites australisin the Chesapeake Bay estuary thrives around altered and hardened shorelines and disturbed marshes and beaches ...
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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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Data & Publications

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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Hypoxia and acidification have additive and synergistic negative effects on the growth, survival, and metamorphosis of earlylife stage bivalves

Low oxygen zones in coastal and open ocean ecosystems have expanded in recent decades, a trend that will accelerate with climatic warming. There is growing recognition that low oxygen regions of the ocean are also acidified, a condition that will ...
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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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In Situ Effects of Shoreline Type and Watershed Land Use on Submerged Aquatic Vegetation Habitat Quality in the Chesapeake and Mid-Atlantic Coastal Bays

Submerged aquatic vegetation (SAV) is an ecologically and economically valuable component of coastal estuaries that acts as an early indicator of both degrading and improving water quality. This study aimed to determine if shoreline hardening, which is associated with increased ...
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Influence of Major Storm Events on the Quantity and Composition of Particulate Organic Matter and the Phytoplankton Community in a Subtropical Estuary, Texas

Variations in the freshwater inflow regimes of estuaries due to perturbations, such as storm events, alter the source, and composition of particulate organic matter (POM) and the phytoplankton community which are key links in estuarine carbon and nitrogen cycling. To ...
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Inorganic nitrogen release from sediment slurry of riverine and estuarine ecosystems located at different river regimes

The rationale of present study was to compare nature of dissolved inorganic nitrogen (DIN = NH4+ and NO2+3) release from aerobic sediment slurry at two different hydrologic flow regimes. The watershed of the Guadalupe River/Estuary system receives more freshwater inflow ...
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Integrating Regional Management Needs into a Mid-Atlantic Shorelines Research Projects

We provide an example of how one estuarine research project engaged regional managers to help guide the research towards the needs of managers and policymakers dealing with shoreline management in the Mid-Atlantic region of the USA. Elements of the approach ...
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