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Projects

Coastal Ecosystem Susceptibility to Nutrient Pollu...

We studied the estuaries of the U.S. East Coast and Gulf of Mexico to determine which coastal areas are most vulnerable to changes in nutrient input. We modeled the environmental ...
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Coastal Marine Mammal Stranding Assessments

We are studying stranded marine mammals to determine causes of death, anthropogenic sources of mortality, contaminant loads, diseases processes, and life history traits. We are sharing these assessments with resource ...
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Comparison of Chemical Contaminants Found in Hudso...

In 2017, the New York–New Jersey Harbor and Estuary Program asked NCCOS’s National Status and Trends (NS&T) Program to survey the Hudson and Raritan Bays' bottom sediments for chemical contaminants ...
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Contaminant and Disease Assessment in Native Alask...

In rural Alaska, native communities rely heavily on subsistence fishing for food. To assess food safety, we tested salmon and shellfish harvested by tribe members for contaminants, parasites, and diseases ...
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Contaminants in Marine Resources of Vieques

Land based sources of pollution have the potential to negatively impact a variety of coastal resources, including fisheries stocks. This study is investigating the public perception that pollution is negatively ...
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Determining the Cause of Endocrine Disruption in t...

Along with colleagues from the U.S. Geological Survey and Virginia Polytechnic Institute, we placed passive water samplers in the Shenandoah River in Virginia to determine which chemicals may be associated ...
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Differences in the Toxicity of the Alga Gambierdis...

The goal of this project is to advance our understanding of toxins produced by different species of the alga Gambierdiscus and how these toxins and their varieties move through the ...
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Ecotoxicity of Perfluorooctane Sulfonate and Fluor...

Fire retardant foams currently contain fluorine-based chemicals known to be toxic and persist in the environment. Fluorine-free foams are now in development, but little is known about the environmental impacts ...
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Ecotoxicological Effects of Oil and Oil Spill Disp...

While chemical dispersants mitigate oil spills, they may also pose risks to coastal and estuarine ecosystems. We are determining oil and dispersant toxicity thresholds in seven key species to assess ...
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Effects and Discovery of Chronic Domoic Acid Expos...

Domoic acid, a naturally occurring marine neurotoxin, threatens the health of marine mammals, seabirds, and humans via severe and long-term yet low-level exposure through the food web. Researchers discovered a ...
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News

Scientists Document Effect of Crude Oil on a Pacif...

Pocillopora damicornis tissue regeneration images following exposure to increasing concentrations of crude oil. Arrows indicate tissue loss at the highest oil concentrations. Credit: May et al., 2020. NCCOS scientists and ...
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NCCOS Monitoring Cyanobacterial Blooms in Lake Pon...

The Bonnet Carré Spillway is a flood control operation designed to divert the nutrient-rich waters of the Mississippi River into Lake Pontchartrain when river water levels get too high, in ...
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Smaller, More User-friendly Sensor Developed to De...

NCCOS-supported scientists and engineers have developed a smaller and more user-friendly low cost sensor that fishermen can use to detect and track the onset of low oxygen events off the ...
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NOAA, Partners Evaluate Nitrogen Removal Potential...

Processing field samples at the Greenwich Yacht Club in Greenwich, Connecticut. Project partners left to right: Dr. Julie Rose (NEFSC), Dr. Skylar Bayer (NEFSC), Dr. Suzanne Bricker (NCCOS), Dr. Alhambra ...
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NOAA Scientists Help Define Best Management Practi...

On September 10-11, 2019, Dr. Suzanne Bricker (NCCOS) and Dr. Julie Rose (NMFS) led part of a workshop that explored ways to promote and implement the use of oyster habitats ...
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Testing the Feasibility of Robotic Gliders to Moni...

NCCOS has evaluated the use of underwater gliders to improve Gulf of Mexico hypoxic zone, also known as the dead zone, monitoring. This effort resulted in the development of a ...
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With Second Workshop, NCCOS Continues Focus on Hyp...

Credit S. Brandt, OSU. Building on results of an initial 2017 workshop, a second advisory panel workshop concerning the effects of low dissolved oxygen in water (hypoxia) was held June ...
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NOAA Forecasts Very Large ‘Dead Zone’ for Gulf of ...

NCCOS scientists are forecasting this summer’s Gulf of Mexico hypoxic zone or "dead zone"—an area of low to no oxygen that can kill fish and other marine life—will be approximately ...
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U.S. Coast Guard Tours NCCOS's Charleston Laborato...

USCG members view coral in NCCOS Labs. Credit NOAA/NCCOS. Earlier this month, NCCOS's Charleston, South Carolina, laboratories hosted the Prevention and Response Departments from the U.S. Coast Guard (USCG) Sector ...
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New Report Summarizes Magnitude and Effects of Con...

NOAA National Status & Trends Bioeffects Program: A Summary of the Magnitude and Effects of Contaminants in the Nation's Coastal Waters report cover. Credit: NOAA. The NCCOS Bioeffects Program has ...
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Products

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Data & Publications

Characterization of three IGFBPs in Atlantic croaker and their regulation during hypoxic stress: potential mechanisms of their upregulation by hypoxia

Insulin-like growth factor-binding proteins (IGFBPs) play important roles in downregulating IGF activity and growth and development in vertebrates under hypoxic stress. However, the mechanisms of hypoxia regulation of IGFBPs in teleost fishes are unknown. The involvement of reactive oxygen species ...
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Characterization of Toxic Impacts on Living Marine Resources in Tidal Rivers of the Chesapeake Bay

In 1999, the Chesapeake Bay Program completed a survey of existing data on chemical contaminants and the potential for bioeffects in 38 tidal river systems of Chesapeake Bay. This review led to the identification of 20 areas for which there ...
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Characterizing Jobos Bay, Puerto Rico: A watershed modeling analysis and monitoring plan

Progress report on partnership between USDA and NOAA's National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA) established by the Conservation Effects Assessment Project (CEAP) in the Jobos Bay watershed. Discusses sediment and pollutant predictions ...
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Chemical contaminants in corals (Pocillopora damicornis) in Tinian, CNMI

This document presents environmental data collected in August 2013 consisting of coral tissue (Pocillopora damicornis) contaminants and surface water nutrients offshore from Tinian in the Commonwealth of Northern Mariana Islands (CNMI). The study area is in and around the Tinian ...
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Chronic Low-Level Domoic Acid Exposure Alters Gene Transcription and Impairs Mitochondrial Function in the CNS

Domoic acid is an algal-derived seafood toxin that functions as a glutamate agonist and exerts excitotoxicity via overstimulation of glutamate receptors (AMPA, NMDA) in the central nervous system (CNS). At high (symptomatic) doses, domoic acid is well-known to cause seizures, ...
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Coastal ecosystem assessment of Chesapeake Bay watersheds: A story of three rivers, the Corsica, Magothy, and Rhode

This assessment explored linkages between land use and aquatic ecosystem health. Three watersheds (Corsica, Magothy, and Rhode rivers) with variable dominant land-use patterns (agriculture, suburban/residential, and mixed-use, respectively) were examined. The health of each habitat was assessed using a suite ...
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Coastal eutrophication near the Mississippi river delta

Changes in delivery of river-borne nutrients such as dissolved phosphate, nitrate and silicate, owing to land-use changes and anthropogenic emissions, are known to result in eutrophication1— enhanced phytoplankton blooms—and more severe hypoxic events2–1 in many enclosed bays and seas. Although ...
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Contaminants in Marine Resources of Vieques, Puerto Rico

Pollution in the marine environment has the potential to negatively impact ecosystem health, including adverse effects on fisheries species. This can occur through direct impacts, food web effects and habitat degradation. Vieques is an island municipality of the Commonwealth of ...
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Defining and documenting marine debris interactions with wildlife

Over the past several decades, the input of anthropogenic litter into the marine system has been an increasing global concern, with negative ecological and environmental consequences. Plastics, abandoned fishing gear and other debris can have serious effects on marine animals, ...
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Dispersal of Mississippi and Atchafalaya Sediment on the Texas-Louisiana Shelf: Model Estimates for the Year 1993

A three-dimensional coupled hydrodynamic-sediment transport model for the Texas–Louisiana continental shelf was developed using the Regional Ocean Modeling System (ROMS) and used to represent fluvial sediment transport and deposition for the year 1993. The model included water and sediment discharge ...
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