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 Spatial Trends Temporal Trends Benthic Macroinvertebrates Periphyton Water Quality

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

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 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 Principal Component Analysis to display multi-dimensional data in 2 dimensions

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

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

10. Seasonal Kendall-Tau Trends Powerful - remove seasonal effects - adjust p values for autocorrelation Quantitative - estimate rates of change Robust - non-parametric - meta-analysisSeasonal Kendall-Tau Trends Powerful - remove seasonal effects - adjust p values for autocorrelation Quantitative - estimate rates of change Robust - non-parametric - meta-analysis

11. Water quality sites  Water quality sites Wq / biology sites  Wq / biology sites  Inactive biology sites SRWMD SUW010 SUW100 SUW130 SUW150 SUW240

12. SpeciesRichness 010 100 130 150 240

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

14. 1994 2003

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

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

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

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

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

21. NO 2 + NO 3 (mg/L) 0 – 1.2 010 100 130 150 240 0.07 / yr 0.09 / yr

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

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