Barnegat Bay-Little Egg Harbor Estuary : case study of a highly eutrophic coastal bay system
Table 1: Physical–chemical characteristics of lagoonal estuaries in the Mid-Atlantic and South Atlantic regions (22.27Kb)
Kennish, Michael J.
Bricker, Suzanne B.
Dennison, William C.
Glibert, Patricia M.
Livingston, Robert J.
Moore, Kenneth A.
Noble, Rachel T.
Paerl, Hans W.
Ramstack, Joy M.
Seitzinger, Sybil P.
Tomasko, David A.
MetadataShow full item record
KeywordBarnegat Bay-Little Egg Harbor Estuary; Nutrient loading; Eutrophication; Indicators; Assessment; Remediation
The Barnegat Bay-Little Egg Harbor Estuary is classified here as a highly eutrophic estuary based on application of NOAA’s National Estuarine Eutrophication Assessment model. Because it is shallow, poorly flushed, and bordered by highly developed watershed areas, the estuary is particularly susceptible to the effects of nutrient loading. Most of this load (~50%) is from surface water inflow, but substantial fractions also originate from atmospheric deposition (~39%), and direct groundwater discharges (~11%). No point source inputs of nutrients exist in the Barnegat Bay watershed. Since 1980, all treated wastewater from the Ocean County Utilities Authority's regional wastewater treatment system has been discharged 1.6 km offshore in the Atlantic Ocean. Eutrophy causes problems in this system, including excessive micro- and macroalgal growth, harmful algal blooms (HABs), altered benthic invertebrate communities, impacted harvestable fisheries, and loss of essential habitat (i.e., seagrass and shellfish beds). Similar problems are evident in other shallow lagoonal estuaries of the Mid-Atlantic and South Atlantic regions. To effectively address nutrient enrichment problems in the Barnegat Bay-Little Egg Harbor Estuary, it is important to determine the nutrient loading levels that produce observable impacts in the system. It is also vital to continually monitor and assess priority indicators of water quality change and estuarine health. In addition, the application of a new generation of innovative models using web-based tools (e.g., NLOAD) will enable researchers and decision-makers to more successfully manage nutrient loads from the watershed. Finally, the implementation of stormwater retrofit projects should have beneficial effects on the system.
Author Posting. © The Author(s), 2007. This is the author's version of the work. It is posted here by permission of Ecological Society of America for personal use, not for redistribution. The definitive version was published in Ecological Applications 17 (2007): S3–S16, doi:10.1890/05-0800.1.
Showing items related by title, author, creator and subject.
Light dependence of Zostera marina annual growth dynamics in estuaries subject to different degrees of eutrophication Hauxwell, Jennifer; Cebrian, Just; Valiela, Ivan (2005-05-20)In temperate, shallow systems with clear waters the temporal dynamic of eelgrass (Zostera marina) growth is closely associated with the seasonality of irradiance at the water's surface. It has been recently suggested that ...
Spruill, Timothy B.; Bratton, John F. (2008-01-12)A study was conducted between April 2004 and September 2005 to estimate ground-water and nutrient discharge to the Neuse River estuary in North Carolina. Largest ground-water fluxes were observed to occur generally within ...
Bowen, Jennifer L.; Ramstack, Joy M.; Mazzilli, S.; Valiela, Ivan (Ecological Society of America, 2007-07)Eutrophication of estuaries is an increasing global concern that requires development of new tools to identify causes, quantify conditions, and propose management options that address this environmental problem. Since ...