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Eutrophication Assessment of Killary, Dungarvan and Wexford Bays

Eutrophication Assessment of Killary, Dungarvan and Wexford Bays. S.B. Bricker, J.G. Ferreira, Y. Xiao National Oceanic and Atmospheric Administration Longline Environment Institute of Marine Research. Project team meeting for Irish Carrying Capacity Assessment June 11-12, 2007

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Eutrophication Assessment of Killary, Dungarvan and Wexford Bays

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  1. Eutrophication Assessment of Killary, Dungarvan and Wexford Bays S.B. Bricker, J.G. Ferreira,Y. Xiao National Oceanic and Atmospheric Administration Longline Environment Institute of Marine Research Project team meeting for Irish Carrying Capacity Assessment June 11-12, 2007 Dublin, Ireland http://www.eutro.org http://www.eutro.us

  2. Symptoms and Consequences of Nutrient Enrichment Nutrient Inputs Primary Secondary Consequences and Processing Impacts Impacts of Symptoms High algal production (Chl) Loss of water clarity Epiphyte problems Macroalgal problems Fish kills Loss of habitat Human health risks Loss of tourism Closed fishing grounds Increased N and P concentration Loss of SAV Low D.O Nuisance/Toxic blooms (HABs) The Problem – The Assessment Approach ASSETS: Pressure - State - Response P: Influencing Factors – Natural processing + Human Nutrient Load S: Overall Eutrophic Condition – Condition of waterbody R: Future Outlook – What will happen in the future? http://www.eutro.orghttp://ian.umces.edu/neea

  3. Key Aspects of the NEEA approach • The NEEA approach may be divided into three parts: • Division of estuaries into homogeneous areas • Evaluation of data completeness and reliability • Application of indices • Tidal freshwater (<0.5 psu) • Mixing zone (0.5-25 psu) • Seawater zone (>25 psu) Spatial and temporal quality of datasets (completeness) Confidence in results (sampling and analytical reliability) Overall Eutrophic Condition (OEC) index Overall Human Influence (OHI) index Determination of Future Outlook (DFO) index State Pressure (Response)

  4. 1 1 MODERATE HIGH MODERATE HIGH HIGH HIGH HIGH HIGH MODERATE MODERATE Primary symptoms high Primary symptoms high High primary and High primary and High primary and High primary and Primary symptoms high Primary symptoms high and substantial and substantial secondary symptom secondary symptom secondary symptom secondary symptom symptoms symptoms but problems with more but problems with more High primary High primary secondary symptoms secondary symptoms levels indicate serious levels indicate serious serious secondary serious secondary becoming more becoming more eutrophication eutrophication eutrophication eutrophication symptoms still not being symptoms still not being expressed, indicating expressed, indicating problems problems problems problems expressed expressed potentially serious potentially serious problems problems 0.6 0.6 MODERATE LOW MODERATE LOW MODERATE LOW MODERATE LOW HIGH HIGH HIGH HIGH Primary symptoms Primary symptoms Primary symptoms Primary symptoms Substantial levels of Substantial levels of Substantial levels of Substantial levels of MODERATE MODERATE beginning to indicate beginning to indicate beginning to indicate beginning to indicate eutrophic eutrophic eutrophic eutrophic conditions conditions conditions conditions Level of expression of Level of expression of symptoms symptoms Moderate primary Moderate primary possible problems possible problems possible problems possible problems occuring occuring occuring occuring with secondary with secondary with secondary with secondary eutrophic eutrophic conditions is conditions is but still very few but still very few but still very few but still very few symptoms indicating symptoms indicating symptoms indicating symptoms indicating substantial substantial secondary symptoms secondary symptoms secondary symptoms secondary symptoms serious problems serious problems serious problems serious problems expressed expressed expressed expressed 0.3 0.3 MODERATE HIGH MODERATE HIGH MODERATE HIGH MODERATE HIGH MODERATE HIGH MODERATE HIGH MODERATE LOW MODERATE LOW MODERATE LOW MODERATE LOW MODERATE LOW MODERATE LOW MODERATE LOW MODERATE LOW High secondary High secondary High secondary High secondary High secondary High secondary Moderate secondary Moderate secondary Moderate secondary Moderate secondary Moderate secondary Moderate secondary Moderate secondary Moderate secondary LOW LOW symptoms indicate symptoms indicate symptoms indicate symptoms indicate symptoms indicate symptoms indicate symptoms indicate symptoms indicate symptoms indicate symptoms indicate symptoms indicate symptoms indicate symptoms indicate symptoms indicate symptoms symptoms Low primary Low primary Level of expression of Level of expression of serious problems, but serious problems, but serious problems, but serious problems, but serious problems, but serious problems, but substantial substantial substantial substantial substantial substantial substantial substantial eutrophic eutrophic eutrophic eutrophic eutrophic eutrophic eutrophic eutrophic eutrophic eutrophic conditions is conditions is low primary indicates low primary indicates low primary indicates low primary indicates low primary indicates low primary indicates conditions, but low conditions, but low conditions, but low conditions, but low conditions, but low conditions, but low conditions, but low conditions, but low minimal minimal other factors may also other factors may also other factors may also other factors may also other factors may also other factors may also primary indicates other primary indicates other primary indicates other primary indicates other primary indicates other primary indicates other primary indicates other primary indicates other be involved in causing be involved in causing be involved in causing be involved in causing be involved in causing be involved in causing factors may be involved factors may be involved factors may be involved factors may be involved factors may be involved factors may be involved factors may be involved factors may be involved in causing the conditions in causing the conditions conditions conditions conditions 0 0 0.3 0.3 0.6 0.6 1 1 Low secondary Low secondary Moderate secondary Moderate secondary High secondary High secondary symptoms symptoms symptoms symptoms symptoms symptoms Matrix for Determining Overall Eutrophic Condition Overall level of expression of Overall level of expression of e e eutrophic conditions utrophic conditions 1 1 1 1 MODERATE HIGH MODERATE HIGH MODERATE HIGH MODERATE HIGH HIGH HIGH HIGH HIGH MODERATE MODERATE MODERATE MODERATE Primary symptoms high Primary symptoms high Primary symptoms high Primary symptoms high High primary and High primary and High primary and High primary and Primary symptoms high Primary symptoms high Primary symptoms high Primary symptoms high and substantial and substantial and substantial and substantial secondary symptom secondary symptom secondary symptom secondary symptom symptoms symptoms symptoms symptoms but problems with more but problems with more but problems with more but problems with more High primary High primary High primary High primary secondary symptoms secondary symptoms secondary symptoms secondary symptoms levels indicate serious levels indicate serious levels indicate serious levels indicate serious serious secondary serious secondary serious secondary serious secondary becoming more becoming more becoming more becoming more eutrophication eutrophication eutrophication eutrophication symptoms still not being symptoms still not being symptoms still not being symptoms still not being expressed, indicating expressed, indicating expressed, indicating expressed, indicating problems problems problems problems expressed expressed expressed expressed potentially serious potentially serious potentially serious potentially serious problems problems problems problems 0.6 0.6 0.6 0.6 MODERATE LOW MODERATE LOW HIGH HIGH HIGH HIGH Primary symptoms Primary symptoms Substantial levels of Substantial levels of Substantial levels of Substantial levels of MODERATE MODERATE MODERATE MODERATE beginning to indicate beginning to indicate eutrophic eutrophic eutrophic eutrophic conditions conditions conditions conditions Level of expression of Level of expression of Level of expression of Level of expression of symptoms symptoms symptoms symptoms Moderate primary Moderate primary Moderate primary Moderate primary possible problems possible problems occuring occuring occuring occuring with secondary with secondary with secondary with secondary eutrophic eutrophic eutrophic eutrophic conditions is conditions is conditions is conditions is but still very few but still very few symptoms indicating symptoms indicating symptoms indicating symptoms indicating substantial substantial substantial substantial secondary symptoms secondary symptoms serious problems serious problems serious problems serious problems expressed expressed 0.3 0.3 0.3 0.3 MODERATE HIGH MODERATE HIGH MODERATE HIGH MODERATE HIGH High secondary High secondary High secondary High secondary LOW LOW LOW LOW symptoms indicate symptoms indicate symptoms indicate symptoms indicate symptoms symptoms symptoms symptoms Low primary Low primary Low primary Low primary Level of expression of Level of expression of Level of expression of Level of expression of serious problems, but serious problems, but serious problems, but serious problems, but eutrophic eutrophic eutrophic eutrophic conditions is conditions is conditions is conditions is low primary indicates low primary indicates low primary indicates low primary indicates minimal minimal minimal minimal other factors may also other factors may also other factors may also other factors may also be involved in causing be involved in causing be involved in causing be involved in causing in causing the conditions in causing the conditions in causing the conditions in causing the conditions conditions conditions conditions conditions 0 0 0 0 0.3 0.3 0.3 0.3 0.6 0.6 0.6 0.6 1 1 1 1 Low secondary Low secondary Low secondary Low secondary Moderate secondary Moderate secondary Moderate secondary Moderate secondary High secondary High secondary High secondary High secondary symptoms symptoms symptoms symptoms symptoms symptoms symptoms symptoms symptoms symptoms symptoms symptoms

  5. http://www.eutro.org http://ian.umces.edu/neea

  6. Summary Characteristics – Data Sources

  7. Killary Harbour 1981 ASSETS application to Killary Harbour Mixing zone Seawater *HABs from offshore, advect into system

  8. Dungarvan 1992-2006 ASSETS application to Dungarvan Seawater zone

  9. Wexford 1992-2006 Mixing zone Seawater

  10. Wexford 1992-2006 ASSETS application to Wexford

  11. Preliminary Results for Three Bays Bay Chl Macro DO SAV HAB OEC KillaryLLU U L* L DungarvanH UNPUNPM WexfordH UNPUNPM Limited by missing data, for Killary by old data *from offshore, advect into system

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