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Benthic Macroinvertebrate and Periphyton Monitoring in Florida's Suwannee River Basin

This report investigates spatial and temporal trends in benthic macroinvertebrates and periphyton across the Suwannee River Basin in Florida, utilizing data from 1989 to 2003. The objectives include expanding knowledge on ecological forcing factors such as eutrophication, providing essential information for Minimum Flows and Levels (MFLs) habitat control points, and defining temporal baselines. Principal Component Analysis reveals significant species associations and informs water quality monitoring and management strategies to support habitat health and ecosystem sustainability.

bernard-ellison
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Benthic Macroinvertebrate and Periphyton Monitoring in Florida's Suwannee River Basin

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  1. BENTHIC MACROINVERTEBRATE AND PERIPHYTON MONITORING IN THE SUWANNEE RIVER BASIN IN FLORIDA 3: SPATIAL AND TEMPORAL TRENDS

  2. Objectives • Spatial Trends Temporal Trends Benthic Macroinvertebrates Periphyton Water Quality

  3. Best Available Data 1989 - 2003 Hester-Dendy sampler Periphytometer

  4. Application • Expand knowledge on ecological forcing factors (e.g., eutrophication) Provide supporting information for habitat control points for MFLs Define temporal baselines for MFLs

  5. Spatial Trends • Principal Component Analysis to display multi-dimensional data in 2 dimensions

  6. PCA Results • Principal Component Analysis

  7. PCA Results Factor 1 + Ablabesmyia ramphe (.35) + Tribelos fusicorne (.31) + Slavina appendiculata (.25)Factor 2 - Stenonema exiguum (.32) + Hydropsyche rossi (.31) + Corydalus cornutus (.28)

  8. Upper Santa Fe Lower Santa Fe With Factor 1 Upper Suwannee Lower Suwannee Factor 2

  9. Seasonal Kendall-Tau TrendsPowerful - remove seasonal effects - adjust p values for autocorrelationQuantitative - estimate rates of changeRobust - non-parametric - meta-analysis

  10. SUW010 SUW100 SUW130 SUW150 SRWMD • Water quality sites • Wq / biology sites • Inactive biology sites SUW240

  11. 010 Species Richness 100 130 150 240

  12. 010 Abundance 65 / yr 100 68 / yr 130 220 / yr 150 140 / yr 240 38 / yr

  13. 2003 1994

  14. 010 Conductivity (umhos/cm) 40 - 400 100 19 / yr 130 26 / yr 150 18 / yr 240 12 / yr

  15. 010 Alkalinity (mg/L) 40 - 400 0.3 / yr 100 130 8 / yr 150 7 / yr 240 5 / yr

  16. 010 Color (PCU) 0 - 500 100 34 / yr 130 33 / yr 150 30 / yr 240 18 / yr

  17. 010 TSS (mg/L) 0 - 10 0.5 / yr 100 0.8 / yr 130 0.8 / yr 150 0.5 / yr 240 0.7 / yr

  18. 010 DO (mg/L) 4 - 10 100 130 150 0.3 / yr 240

  19. 010 NO2 + NO3 (mg/L) 0 – 1.2 100 130 0.07 / yr 150 0.09 / yr 240

  20. 010 Total P (mg/L) 0 – 0.8 100 0.02 / yr 130 0.02 / yr 150 0.02 / yr 240

  21. Bottom Line • Expand knowledge on ecological forcing factors (e.g., eutrophication) Provide supporting information for habitat control points for MFLs Define temporal baselines for MFLs

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