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Projects

Cross-Regional Comparison of Dinophysis Bloom Dyna...

Harmful algal blooms of Dinophysis have recently emerged as a human health threat in the U.S., resulting in closures of shellfish harvesting to prevent Diarrhetic Shellfish Poisoning. We are working ...
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Determining Habitat Requirements and Connectivity ...

We are investigating habitat requirements and connectivity for key reef-associated fishes in the Flower Garden Banks National Marine Sanctuary and surrounding areas. Marine protected areas (MPAs) are designated to conserve ...
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Development of a Siting Tool for Sustainable Oyste...

Oyster populations in Copano Bay, Texas, have declined to roughly one percent of historic populations, and the once thriving commercial oyster fishery in Texas reflects this decline. Aquaculture is seen ...
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Evaluating Changes in Health and Well-being in Com...

We are exploring how environmental changes that resulted from the Deepwater Horizon oil disaster of 2010 are affecting human health and well-being in neighboring coastal communities. Federal, state, and academic ...
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Explaining Acidification and Nutrient Pollution in...

We are supporting research that will define relationships between estuarine acidification and other stressors (i.e., reduced freshwater inflow, low oxygen, and nutrient loading) in Texas coastal bays. This information will ...
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Hypoxia’s Effects on the Shrimp Fishery in the Nor...

Our research is the first to investigate hypoxia’s effects on the harvest and economic dynamics of a Gulf of Mexico shrimp fishery. By linking hypoxia to impacts on fisheries, we ...
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Implementing Karenia brevis Respiratory Risk For...

This project will establish a network that incorporates state monitoring partners and citizen scientists to show that the HABscope-based forecast system can provide robust, timely and useful bloom locations and ...
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Integrated Ecosystem Modeling of the Causes of Hyp...

The largest low oxygen (hypoxic) zone affecting the United States is in the northern Gulf of Mexico, adjacent to the Mississippi River. This “dead zone” in the Gulf of Mexico ...
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News

NCCOS Supports Expansion of Red Tide Respiratory F...

This photo, taken while conducting aerial surveys for manatee conservation studies, clearly shows red tide off Florida’s Southwest coastline during the 2017–2019 bloom. Credit: Mote Marine Laboratory’s Manatee Research Program ...
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New Report Evaluates Health of U.S. Coral Reefs

Cover page of Coral Reef Condition: A Status Report for U.S. Coral Reefs. Credit NOAA. NCCOS scientists contributed to the newly released national status report on U.S. coral reefs. Drawing ...
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NCCOS, Partners Release New Gulf Coast Monitoring ...

NCCOS, USGS, and NOAA Fisheries developed a new web-accessible database of water quality and habitat monitoring and mapping programs in the Gulf of Mexico. The database, called the Gulf Coast ...
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Hurricane Harvey Water Quality Effects Documented ...

NOAA NWS radar mosaic of Hurricane Harvey on 25 August 2017, DBZ = radar reflectivity factor of precipitation). Credit: NOAA NWS. An NCCOS-supported study analyzed the short- and long-term water ...
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Smaller than Average Summer ‘Dead Zone’ Measured ...

NCCOS-supported scientists have determined that this year’s Gulf of Mexico “dead zone”—an area of low oxygen that can kill fish and marine life—is approximately 2,116 square miles, equivalent to 1.4 ...
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NOAA and USGS Release Follow-up Report on the Deve...

NOAA's National Centers for Coastal Ocean Science (NCCOS), NOAA's National Marine Fisheries Service (NMFS), U. S. Geological Survey (USGS) and the RESTORE Council have released the second of seven reports ...
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Model Combines Reduced Nutrients, Increased Temps ...

A team of NCCOS sponsored scientists have enhanced a hypoxia model with an unprecedented, multi-decadal oceanographic dataset to predict the combined effects of reduced nutrient loading, increased temperature, and freshwater ...
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Hypoxia Study Shows Fish Diet and Catchability Cha...

NCCOS sponsored research on hypoxia (low oxygen concentrations within the water column) finds that hypoxic conditions in the northern Gulf of Mexico have variable effects on fish diet, food webs, ...
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Giant Barrel Sponges at Dry Tortugas and Pulley Ri...

NOAA-sponsored scientists studying the potential connectivity of the giant barrel sponges of Pulley Ridge to other reefs in the Gulf of Mexico and Florida Reef tract found that of the ...
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Products

Maps, Tools & Applications

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Data & Publications

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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Distance maps to estimate cell volume from two-dimensional plankton images

We describe and evaluate an algorithm that uses a distance map to automatically calculate the biovolume of a planktonic organism from its two-dimensional boundary. Compared with existing approaches, this algorithm dramatically increases the speed and accuracy of biomass estimates from ...
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Effect of hydrological variability on the biogeochemistry of estuaries across a regional climatic gradient

Given projected changes in river flow to coastal regions worldwide due to climate change and increasing human freshwater demands, it is necessary to determine the role hydrology plays in regulating the biogeochemistry of estuaries. A climatic gradient exists along the ...
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Effects of hypoxia exposure on hepatic cytochrome P450 1A (CYP1A) expression in Atlantic croaker: molecular mechanisms of CYP1A down-regulation

Hypoxia-inducible factor-? (HIF-?) and cytochrome P450 1A (CYP1A) are biomarkers of environmental exposure to hypoxia and organic xenobiotic chemicals that act through the aryl hydrocarbon receptor, respectively. Many aquatic environments heavily contaminated with organic chemicals, such as harbors, are also ...
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Effects of model physics on hypoxia simulations for the northern Gulf of Mexico: A model intercomparison

A large hypoxic zone forms every summer on the Texas-Louisiana Shelf in the northern Gulf of Mexico due to nutrient and freshwater inputs from the Mississippi/Atchafalaya River System. Efforts are underway to reduce the extent of hypoxic conditions through reductions ...
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Ensemble modeling informs hypoxia management in the northern Gulf of Mexico

A large region of low-dissolved-oxygen bottom waters (hypoxia) forms nearly every summer in the northern Gulf of Mexico because of nutrient inputs from the Mississippi River Basin and water column stratification. Policymakers developed goals to reduce the area of hypoxic ...
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Environmental toxicology data collected by the National Status and Trends Program for monitoring contaminants in coastal United States marine water bodies from 01 Jan 1960 to 05 May 2010 (NODC Accession 0074376)

The National Status and Trends Program is comprised of three nationwide programs: Benthic Surveillance, Mussel Watch, and Bioeffects. These programs are in place to observe estuarine and coastal waters nationwide to describe the current status and detect changes in the ...
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Estuarine classification and response to nitrogen loading: Insights from simple ecological models

Estuaries exhibit a large range in their responses to nitrogen loadings determined in part by characteristics of the driver, such as magnitude and frequency, but also by such intrinsic characteristics as physical/chemical factors (e.g., depth, volume, hypsometry, salinity, turbidity) and ...
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Estuarine Living Marine Resources: Gulf of Mexico regional distribution and abundance (NCEI Accession 0163993)

This is the original (1992) Gulf of Mexico regional component of NOAA's Estuarine Living Marine Resources (ELMR) Project, a national database of ecologically and economically important fishes and invertebrates in the Nation's estuaries. The distribution and relative abundance are depicted ...
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Estuarine salinity zones in US East Coast, Gulf of Mexico, and US West Coast from 1999-01-01 to 1999-12-31 (NCEI Accession 0127396)

These unprojected (geographic coordinates) 3-Zone Average Annual Salinity Digital Geographies are based on analysis of long-term salinity data for 147 estuaries of the contiguous United States. Each estuary is subdivided into three zones between the head(s) of tide, and the ...
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