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National Estuarine Eutrophication Assessment

The National Estuarine Eutrophication Assessment is a joint initiative between the NOAA National Centers for Coastal Ocean Science (NCCOS) and the Integration and Application Network (IAN). The NEEA Update is part of the NEEA Program (Program Guidance Document) and uses the ASSETS (Assessment of Estuarine Trophic Status) methodology which is a collaborative effort between NOAA and the Portuguese Institute of Marine Research (IMAR). The ASSETS methodology is designed improve upon the assessment of the 1999 U.S. National Estuarine Eutrophication Assessment (NEEA) to make it more accurate and more broadly applicable to different types of systems.

The final report is now available for download from our resources page. You can also get a printed copy by contacting Suzanne Bricker.

Effects of nutrient enrichment in the nation's estuaries: A decade of change
This report provides an assessment of eutrophic conditions for 141 U.S. estuaries. The report was based on data and information provided by scientists and experts from around the country. Results from the assessment show that two-thirds of the estuaries evaluated exhibited moderate to high levels of eutrophication. Report production was a collaborative effort between Suzanne Bricker (NOAA NCCOS), EcoCheck (NOAA-UMCES Partnership) and IAN. You can also access the individual chapters from the NCCOS website.

NB: This PDF is 260MB - please right click and download rather than viewing online.

2004 Eutro Map

Map showing the overall eutrophic condition of the nation's estuaries and whether they have improved or worsened since 1999.