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News

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 ...

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 ...

Harmful Algal Bloom Symposium Highlights NCCOS Suc...

Last month's "Seventh Symposium on Harmful Algae in the U.S." held in Sarasota, Fla., highlighted an NCCOS project that developed an integrated alert system to monitor and detect toxic cyanobacteria ...

NCCOS Sponsors Harmful Algal Bloom Workshops for U...

New York's borders encompass fresh, estuarine, and salt waters, each plagued by harmful algal bloom (HAB) outbreaks that pose risks to human health and the economic vitality of coastal communities ...

NCCOS Researchers to Assist Washington State in Ma...

NCCOS scientists traveled to Washington State May 13-17 to support marine planning along the outer Pacific coast. NCCOS is helping inventory and assess key seafloor, groundfish, seabird and marine mammal ...

Western Lake Erie Basin Partners Meet on Managemen...

NCCOS-sponsored scientists with the hypoxia Ecological Forecasting Project in Lake Erie are presenting research findings related to Best Management Practices (BMPs), phosphorus loading, and climate interactions in the western Lake ...

NCCOS-sponsored Research Paper Receives Annual Awa...

An NCCOS-sponsored project publication was selected for the 2012 "Chandler-Misener Award" by the Journal of Great Lakes Research. Titled ' Historical pattern of phosphorus loading to Lake Erie watersheds,' the ...

Ocean Acidification: NCCOS-funded Research Reveals...

While, the negative impacts of increasing ocean acidification on clams, scallops and other bivalves the biological basis is still unclear,'legacy effect' of early CO2explosure can play a significant role in ...

NCCOS Research Informs New Management Plan for Yel...

Yellow perch comprise Lake Erie's largest commercial fishery and second most important recreational fishery. We presented research results from the NCCOS ecological forecasting (EcoFore) Lake Erie project to the Lake ...

Recreational Water Pathogen Detection Workshops Bu...

The North Carolina Biotechnology Center funded NOAA and academic researchers to develop a training facility for public health officials and resource managers in advanced molecular methods to detect pathogens and ...

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Data & Publications

Proteome changes driven by phosphorous deficiency and recovery in the brown tide-forming alga Aureococcus anophagefferens

Shotgun mass spectrometry was used to detect proteins in the harmful alga, Aureococcus anophagefferens, and monitor their relative abundance across nutrient replete (control), phosphate-deficient (?P) and ?P refed with phosphate (P-refed) conditions. Spectral counting techniques identified differentially abundant proteins and ...

Quantifying nitrogen assimilation rates of individual phytoplankton species and plankton groups during harmful algal blooms via sorting flow cytometry

While 15N-labeled nitrogen (N) compounds have been used to quantify N uptake rates by plankton communities for decades, accurately ascribing those rates to individual populations or species has been a challenge. Here, we apply sorting flow cytometry combined with species-specific ...

Ship-borne Nonindigenous Species Diminish Great Lakes Ecosystem Services

We used structured expert judgment and economic analysis to quantify annual impacts on ecosystem services in the Great Lakes, North America of nonindigenous aquatic species introduced by ocean-going ships. For the US waters, median damages aggregated across multiple ecosystem services ...

Sight-unseen detection of rare aquatic species using environmental DNA

Effective management of rare species, including endangered native species and recently introduced nonindigenous species, requires the detection of populations at low density. For endangered species, detecting the localized distribution makes it possible to identify and protect critical habitat to enhance ...

Status, Causes and Controls of Cyanobacterial Blooms in Lake Erie

The Laurentian Great Lakes are among the most prominent sources of fresh water in the world. Lake Erie's infamous cyanobacterial blooms have, however, threatened the health of this valuable freshwater resource for decades. Toxic blooms dominated by the cyanobacterium Microcystis ...

Stepping stones for biological invasion: A bioeconomic model of transferable risk

We investigate three sources of bias in valuation methods for ecosystem risk: failure to consider substitution possibilities between goods, failure to consider nonseparability of ecosystem services with market goods, and failure to consider substitution possibilities between ecosystems. The first two ...

The contribution of inorganic and organic nutrients to the growth of a North American isolate of the mixotrophic dinoflagellate, Dinophysis acuminata

Diarrhetic Shellfish Poisoning (DSP) is a globally significant human health syndrome most commonly caused by dinoflagellates of the genus Dinophysis. While ecosystem studies suggest that blooms of this mixotrophic dinoflagellate can be promoted by excessive nitrogen (N) loading, it is ...

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, ...

The emergence of Dinophysis acuminata blooms and DSP toxins in shellfish in New York waters

The dynamics of Dinophysis acuminata and its associated diarrhetic shellfish poisoning (DSP) toxins, okadaic acid (OA) and dinophysistoxin-1 (DTX1) as well as pectenotoxins (PTXs), were investigated within plankton and shellfish in Northport Bay, NY, USA, over a four year period ...

The Fate of Microcystins in the Environment and Challenges for Monitoring

Microcystins are secondary metabolites produced by cyanobacteria that act as hepatotoxins in higher organisms. These toxins can be altered through abiotic processes, such as photodegradation and adsorption, as well as through biological processes via metabolism and bacterial degradation. Some species ...

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