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News

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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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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New Report Addresses Re-eutrophication and Hypoxia...

A new report aimed at Great Lakes policymakers calls for Lake Erie total phosphorus reductions almost 50 percent greater than previous recommendations. Recent total phosphorus reduction recommendations may not reduce ...
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Tackling Ocean Acidification in Maine

Ocean chemistry is rapidly changing due to rising levels of atmospheric carbon dioxide, which has increased the acidity of seawater worldwide. Ocean acidification can affect marine resources such as fish ...
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Scenario Forecasts for Regional Coastal Management

Models play an increasingly important role in environmental problems, as decision makers need to consider the consequences of different climatic or environmental conditions, management scenarios, and population trends. Forecasts based ...
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Ocean Acidification Promotes Disruptive and Harmfu...

The general decline in ocean pH (i.e., more acidic conditions) from the increasing concentrations of carbon dioxide (CO2) is well documented. Also well documented are increased nutrients entering coastal waters ...
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NCCOS Research in Today's Rapidly Changing Global ...

Two national science conferences recently highlighted NCCOS research: The theme at the 7th Symposium on Harmful Algae in the United States (Oct. 27 -31, 2013; Sarasota, FL) was harmful algal ...
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Addressing the Decline of Michigan's Saginaw Bay

NCCOS-funded scientists participated in a recent forum held by the Michigan House Democrats' Great Lakes and Conservation Task Force to address human-caused stresses to Lake Huron's Saginaw Bay. The team ...
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NCCOS Research Underpins International Lake Erie E...

With Lake Erie threatened again by eutrophication and harmful algal blooms, the Great Lakes International Joint Commission (IJC) recently established a 'Lake Erie Ecosystem Priority' (LEEP) initiative to provide advice ...
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NCCOS Research Results Impact International Policy

On September 10, 2013, NCCOS-sponsored researcher Dr. Don Scavia will be a panelist at the Great Lakes Triennial Meeting focusing on Lake Erie. This forum is designed to inform and ...
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Data & Publications

Shoreline Hardening Affects Nekton Biomass, Size Structure, and Taxonomic Diversity in Nearshore Waters, with Responses Mediated by Functional Species Groups

Coastal shoreline hardening is intensifying due to human population growth and sea level rise. Prior studies have emphasized shoreline-hardening effects on faunal abundance and diversity; few have examined effects on faunal biomass and size structure or described effects specific to ...
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Spatial and Temporal Variation in Brackish Wetland Seedbanks: Implications for Wetland Restoration Following Phragmites Control

Chesapeake Bay tidal wetlands are experiencing a broad-scale, aggressive invasion by the non-native, clonal grass Phragmites australis. The grass is often managed with herbicides in efforts to restore native plant communities and wildlife habitat. Management efforts, however, can act as ...
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Stand Age is Associated with Clonal Diversity, but Not Vigor, Community Structure, or Insect Herbivory in Chesapeake Bay Phragmites australis

Invasions are dynamic as both the invading organism and the invaded ecosystem change. Intrinsic changes to the invader (invasion process) can involve population level genetic and reproductive changes. Extrinsic changes (invasion effect) occur to the environment that is invaded (e.g., ...
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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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The Continuing Effects of Multiple Stressors in Saginaw Bay

In 2007 the NOAA Center for Sponsored Coastal Ocean Research (CSCOR) awarded a grant to NOAA GLERL and a team of partners to study the ongoing effects of multiple stressors on the Saginaw Bay ecosystem. This supplemental issue of the ...
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The effects of elevated CO2 on the growth and toxicity of field populations and cultures of the saxitoxin-producing dinoflagellate, Alexandrium fundyense

The effects of coastal acidification on the growth and toxicity of the saxitoxin-producing dinoflagellate Alexandrium fundyense were examined in culture and ecosystem studies. In culture experiments, Alexandrium strains isolated from Northport Bay NY, USA, and the Bay of Fundy, Canada, ...
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The Relationship Between Shoreline Armoring and Adjacent Submerged Aquatic Vegetation in Chesapeake Bay and Nearby Atlantic Coastal Bays

Shoreline armoring is an ancient and globally used engineering strategy to prevent shoreline erosion along marine, estuarine, and freshwater coastlines. Armoring alters the land water interface and has the potential to affect nearshore submerged aquatic vegetation (SAV) by changing nearshore ...
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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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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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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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