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News

Environmental Variables Influence Toxic Ciguatera ...

Anew study describes optimal growth conditions for several species and strains of the benthic marine dinoflagellate Gambierdiscus and highlights how these species and strains respond differently to varying levels of ...
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Can Mesophotic Coral Ecosystems Serve as Lifeboats...

On May 24, 2016, the United Nations Environment Programme released a new report on mesophotic coral ecosystems (MCEs) during a coral reef media roundtable at the second session of the ...
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Acidification Increases Sensitivity to Hypoxia in ...

NCCOS sponsored research focusing onthe combined effects of low dissolved oxygen and ocean acidification finds that acidification can increase fish sensitivity to hypoxia. This has important implications for increasing atmospheric ...
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Risk of Shellfish Toxicity Predicted by Temperatur...

A new study shows that water temperature and salinity can indicatethe likelyoccurrenceof toxicAlexandrium blooms (a type of harmful algae) in the U. S. Pacific Northwest. As shellfish become contaminated with ...
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2016 Ocean Sciences Meeting Showcases NCCOS Resear...

The 2016 Ocean Sciences Meeting this past winter featured the research of NCCOS scientists and sponsored principal investigators. Topics included ocean acidification, hypoxia, blue carbon, and harmful algal blooms. NCCOS ...
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NCCOS Supports Climate Change Research in Rocky Mo...

Earlier this month, Dr. Suzanne Bricker from NCCOS participated in an expedition to collect sediment and water from a high altitude lake (10,400' elevation) in Rocky Mountain National Park. The ...
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Robotic Environmental Sample Processor Conserves S...

Sponsored researchers with the NCCOS ECOHAB project looking at regional harmful algal bloom 'hotspots' off coastal California are testing the feasibility of using a robotic water quality and toxin detection ...
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Long Island Shellfish Industry Briefed on Climate ...

On March 2, 2016, approximately 20 people involved in the shellfish industry on Long Island, NY met with Dr. Chris Gobler at his Stony Brook University laboratory to learn about ...
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Envisioning a Plankton Imaging Network to Address ...

In mid-January, 2016, NCCOS funded investigators from Texas A&M University and the Woods Hole Oceanographic Institution convened a group of scientists and managers to produce a first-ever consensus vision for ...
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California Ocean Protection Council Briefed on Har...

At a recentmeeting of the California Ocean Protection Council (OPC), a panel of researchers and managers briefedthe council on the Summer 2015West Coast harmful algal bloom (HAB) event and other ...
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Data & Publications

Landscape-Level Variation in Disease Susceptibility Related to Shallow-Water Hypoxia

Diel-cycling hypoxia is widespread in shallow portions of estuaries and lagoons, especially in systems with high nutrient loads resulting from human activities. Far less is known about the effects of this form of hypoxia than deeper-water seasonal or persistent low ...
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Large Natural pH, CO2 and O2 Fluctuations in a Temperate Tidal Salt Marsh on Diel, Seasonal, and Interannual Time Scales

Coastal marine organisms experience dynamic pH and dissolved oxygen (DO) conditions in their natural habitats, which may impact their susceptibility to long-term anthropogenic changes. Robust characterizations of all temporal scales of natural pH and DO fluctuations in different marine habitats ...
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Linking Coasts and Seas to Address Ocean Deoxygenation

Accelerated oxygen loss in both coastal and open oceans is generating complex biological responses; future understanding and management will require holistic integration of currently fragmented oxygen observation and research programmes ...
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Linking molecular microbial ecology to geochemistry in a coastal hypoxic zone

Multiple environmental mechanisms have been proposed to control bottom water hypoxia (<2 mg O2 L?1) in the northern Gulf of Mexico Louisiana shelf. Near-bottom hypoxia has been attributed to a direct consumption of oxygen through benthic microbial respiration and a ...
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Linking the Abundance of Estuarine Fish and Crustaceans in Nearshore Waters to Shoreline Hardening and Land Cover

Human alteration of land cover (e.g., urban and agricultural land use) and shoreline hardening (e.g., bulkheading and rip rap revetment) are intensifying due to increasing human populations and sea level rise. Fishes and crustaceans that are ecologically and economically valuable ...
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Local and regional disturbances associated with the invasion of Chesapeake Bay marshes by the common reed 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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Long-term decline in the calanoid copepod Acartia tonsa in central Chesapeake Bay, USA: An indirect effect of eutrophication

A long-term abundance record of the calanoid copepod Acartia tonsa in the Maryland portion of Chesapeake Bay was compiled from 1966 to 2002. A significant downward trend in the summertime abundance of Acartia tonsa was found in central Chesapeake Bay ...
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Long-term monitoring of ecological conditions in Gray’s Reef National Marine Sanctuary: Comparison of soft-bottom benthic assemblages and contaminant levels in sediments and biota in spring 2000 and 2005

As part of an ongoing program of benthic sampling and related assessments of sediment quality at Gray's Reef National Marine Sanctuary (GRNMS) off the coast of Georgia, a survey of soft-bottom benthic habitats was conducted in spring 2005 to characterize ...
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Long-term trends in Chesapeake Bay seasonal hypoxia, stratification, and nutrient loading

A previously observed shift in the relationship between Chesapeake Bay hypoxia and nitrogen loading has pressing implications on the efficacy of nutrient management. Detailed temporal analyses of long-term hypoxia, nitrogen loads, and stratification were conducted to reveal different within-summer trends ...
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Long-term, high frequency in situ measurements of intertidal mussel bed temperatures using biomimetic sensors

At a proximal level, the physiological impacts of global climate change on ectothermic organisms are manifest as changes in body temperatures. Especially for plants and animals exposed to direct solar radiation, body temperatures can be substantially different from air temperatures ...
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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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