Florida Keys National Marine Sanctuary Steering Committee Meeting WATER QUALITY MONITORING Demonstration of Remediation Methods Florida Keys Canals Summary.

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Presentation transcript:

Florida Keys National Marine Sanctuary Steering Committee Meeting WATER QUALITY MONITORING Demonstration of Remediation Methods Florida Keys Canals Summary Report # 1 8/14/2013 Henry O. Briceño, Joseph Boyer Jeff Absten Sandro Stumpf Vicki Absten-McGee Nicolas Jaffe Florida International University Southeast Environmental Research Center

SELECTED CANALS FOR REMEDIATION AND CONTROL Control canals highlighted in yellow

Reduction of weed wrack loading Installation of culverts and/or pumps Removal of accumulated organic sediments Backfilling of canals ACTION Reduction of Organic Matter Load Increase Water Exchange and Flushing Reduce Bottom Water Hypoxia Reduce Excessive Depth to Improve Circulation Reduction Benthic Flux Higher Seawater Contribution Bacterial Population H2S Reduction DOM & POM Nutrient Load Mixing Rate Stratification Benthic Community GOAL PROBABLE CHANGES TOCDOH2S pH N & P qPCR SALTUR INDEX Algae Bloom PROFILES DEPTH Kd TEMP SAL DO TUR pH DOM KdDOM CHLa CDOM Parafax PAM Enteroc

Toolkit Profile measurements (cast) (YSI and Seabird) – T, DO, depth, Cond, Sal, pH, Turbidity, PAR, CDOM Diel cycles (24 10 min sampling rate) – DO, Turb, Cond, Sal, Temp, pH Water Quality analysis – Nutrients TN, TP and DIN Enterococci bacteria analysis (Enterolert) Outreach

Contrasting systems

Canal 29-Profile A (Seabird data) Profiles (CTD & YSI)

Diurnal series (Diel cycle) C Surface

Diurnal series (Diel cycle) C Bottom

Comparing Canals to rest of Keys

Average salinity of water column

What’s next Preliminary data interpretation and characterization Second Survey: August 2014 Tuning toolkit and methodologies Range of variability assessment (seasonality) Further comparison

WATER QUALITY MONITORING Demonstration of Remediation Method Summary Report # 1 THANKS..!!!! Henry O. Briceño Joseph Boyer Jeff Absten Sandro Stumpf Vicki Absten-McGee Nicolas Jaffe Florida International University Southeast Environmental Research Center

WATER QUALITY MONITORING Demonstration of Remediation Method Summary Report # 1 THANKS..!!!! Henry O. Briceño Joseph Boyer Jeff Absten Sandro Stumpf Vicki Absten-McGee Nicolas Jaffe Florida International University Southeast Environmental Research Center

Culvert 277C 277 C only for cast no water samples 277B

Pump site ? Canal 278 F A CB D E