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Florida Keys National Marine Sanctuary Steering Committee Meeting Marathon, 2/12/2014

Florida Keys National Marine Sanctuary Steering Committee Meeting Marathon, 2/12/2014. Water Quality Monitoring . 1 Henry Briceño and 2 Joseph N. Boyer 1=Southeast Environmental Research Center Florida International University, Miami, FL 2= Plymouth State University

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Florida Keys National Marine Sanctuary Steering Committee Meeting Marathon, 2/12/2014

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  1. Florida Keys National Marine SanctuarySteering Committee MeetingMarathon, 2/12/2014 Water Quality Monitoring 1Henry Briceño and 2Joseph N. Boyer 1=Southeast Environmental Research Center Florida International University, Miami, FL 2= Plymouth State University Center for the Environment

  2. Monitoring Water Quality in FKNMS • Establish baseline information about FKNMS waters • Document events, both chronic and episodic • Assess trends or changes in WQ over time • Explain causes in WQ changes (internal & external driver) • Provide relevant information for resource management decisions • Document compliance practices (regulatory) • Educate public & stakeholders about water quality *

  3. As of Feb 2014

  4. EPA developed Strategic Targets for the Water Quality Monitoring Project • For reef sites • chlorophyll a should be ≤ 0.35 µ l-1 • vertical attenuation coefficient Kd ≤0.2 m-1 • For all monitoring sites in FKNMS • dissolved inorganic nitrogen DIN ≤0.10 mg/l • total phosphorus, TP ≤ 0.0077 mg/l • …”maintain the overall water quality of the near shore and coastal waters of the FKNMS according to 2005 baseline”…

  5. C Compliance

  6. Temporal tendencies and trends

  7. Nutrient cycles are more important than secular trend

  8. …except for TOC and Salinity

  9. DO and %DO Sat display strong system shift in 2008-2008 CHLa shift to lower levels linked to dryer regional climate (?)

  10. Spatial tendencies and trends

  11. Trend Analysis • Simplest approach • Slope of linear regression for each variable at each station • POR 1995-2014 • Significance level set at p<0.10 Increases in Blue Declines in White

  12. Recent achievements….

  13. Biogeochemical Segmentation of South Florida Coastal and Estuarine Waters Adopted by EPA and FDEP with minor changes for derivation of Numeric Nutrient Criteria H Briceño, H, J Boyer, J Castro and P Harlem. 2013. Biogeochemical Classification of South Florida’s Estuarine and Coastal Waters. Marine Pollution Bulletin, Vol 75, Pages 187–204

  14. Florida Keys National Marine SanctuarySteering Committee MeetingMarathon, 2/12/2014 Thanks !!!.... 1Henry Briceño and 2Joseph N. Boyer 1=Southeast Environmental Research Center Florida International University, Miami, FL 2= Plymouth State University Center for the Environment

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