Title:
Recommended Indicators of Estuarine Water Quality For Georgia
Recommended Indicators of Estuarine Water Quality For Georgia
| dc.contributor.author | Sheldon, Joan E. | en_US |
| dc.contributor.author | Alber, Merryl | en_US |
| dc.contributor.corporatename | University of Georgia. Dept. of Marine Sciences | en_US |
| dc.contributor.editor | Carroll, G. Denise | en_US |
| dc.date.accessioned | 2013-01-31T21:01:16Z | |
| dc.date.available | 2013-01-31T21:01:16Z | |
| dc.date.issued | 2011-04 | |
| dc.description | Proceedings of the 2011 Georgia Water Resources Conference, April 11, 12, and 13, 2011, Athens, Georgia. | en_US |
| dc.description.abstract | Increasing nutrient input and subsequent eutrophication and hypoxia are concerns in many estuaries, and the U.S. EPA has mandated the development of numeric nutrient criteria to assess the status of U.S. coastal waters. However, they recognize the need for regionally appropriate criteria, as previous national-level efforts have often relied on criteria that are not equally relevant in all waters. Two pathways to eutrophication have been suggested to exist in Georgia waters: the classic phytoplankton- mediated pathway in stratified waters and an alternate pathway in which excess nutrients stimulate microbial respiration directly, resulting in low dissolved oxygen throughout a well-mixed water column. We propose a suite of seven indicators, as well as basic ancillary data (water temperature, salinity, specific conductance), that are intended to help classify and understand the causes of water quality degradation in Georgia. We recommend two immediate indicators of poor water quality (pH and dissolved oxygen) that may indicate that a stressful and potentially lethal condition is already in progress. The remaining five (nitrogen, phosphorus, chlorophyll a, transparency, and biochemical oxygen demand (BOD)) are “early warning” indicators of potentially poor water quality that should be measured in order to anticipate problems and make appropriate management decisions. These indicators, which cover the progression of eutrophication from nutrient over-enrichment to algal overgrowth (if present) to enhanced microbial respiration and hypoxia, will help to ensure that problems will not be missed due to limited sampling frequencies. We present the rationale for choosing these indicators and the considerations for developing evaluation criteria. | en_US |
| dc.description.sponsorship | Sponsored by: Georgia Environmental Protection Division U.S. Geological Survey, Georgia Water Science Center U.S. Department of Agriculture, Natural Resources Conservation Service Georgia Institute of Technology, Georgia Water Resources Institute The University of Georgia, Water Resources Faculty | en_US |
| dc.description.statementofresponsibility | This book was published by Warnell School of Forestry and Natural Resources, The University of Georgia, Athens, Georgia 30602-2152. The views and statements advanced in this publication are solely those of the authors and do not represent official views or policies of The University of Georgia, the U.S. Geological Survey, the Georgia Water Research Institute as authorized by the Water Research Institutes Authorization Act of 1990 (P.L. 101-307) or the other conference sponsors. | en_US |
| dc.identifier.isbn | 0-9794100-23 | |
| dc.identifier.uri | http://hdl.handle.net/1853/46114 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | Georgia Institute of Technology | en_US |
| dc.publisher.original | Warnell School of Forestry and Natural Resources, The University of Georgia | en_US |
| dc.relation.ispartofseries | GWRI2011. Environmental Protection | en_US |
| dc.subject | Water resources management | en_US |
| dc.subject | Estuaries | en_US |
| dc.subject | Numeric nutrient criteria | en_US |
| dc.subject | Nitrogen | en_US |
| dc.subject | Phosphorus | en_US |
| dc.subject | Water quality indicators | en_US |
| dc.title | Recommended Indicators of Estuarine Water Quality For Georgia | en_US |
| dc.type | Text | |
| dc.type.genre | Proceedings | |
| dspace.entity.type | Publication | |
| local.contributor.corporatename | Georgia Water Resources Institute | |
| local.contributor.corporatename | School of Civil and Environmental Engineering | |
| local.contributor.corporatename | College of Engineering | |
| local.relation.ispartofseries | Georgia Water Resources Conference | |
| relation.isOrgUnitOfPublication | 8873b408-9aff-48cc-ae3c-a3d1daf89a98 | |
| relation.isOrgUnitOfPublication | 88639fad-d3ae-4867-9e7a-7c9e6d2ecc7c | |
| relation.isOrgUnitOfPublication | 7c022d60-21d5-497c-b552-95e489a06569 | |
| relation.isSeriesOfPublication | e0bfffc9-c85a-4095-b626-c25ee130a2f3 |
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