BENTHIC MACROINVERTEBRATE AND PERIPHYTON MONITORING IN THE SUWANNEE RIVER BASIN IN FLORIDA 3: SPATIAL AND TEMPORAL TRENDS
Objectives Spatial Trends Temporal Trends Benthic Macroinvertebrates Periphyton Water Quality Spatial Trends Temporal Trends Benthic Macroinvertebrates Periphyton Water Quality
Hester-Dendy sampler Periphytometer Best Available Data
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
Spatial Trends Principal Component Analysis to display multi-dimensional data in 2 dimensions Principal Component Analysis to display multi-dimensional data in 2 dimensions
PCA Results Principal Component Analysis Principal Component Analysis
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)
Factor 2 Factor 1 Upper Santa Fe Lower Santa Fe Upper Suwannee Lower Suwannee With
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
Water quality sites Water quality sites Wq / biology sites Wq / biology sites Inactive biology sites SRWMD SUW010 SUW100 SUW130 SUW150 SUW240
SpeciesRichness
Abundance / yr 68 / yr 220 / yr 140 / yr 38 / yr
Conductivity(umhos/cm) / yr 26 / yr 18 / yr 12 / yr
Alkalinity(mg/L) / yr 8 / yr 7 / yr 5 / yr
Color(PCU) / yr 33 / yr 30 / yr 18 / yr
TSS(mg/L) / yr 0.5 / yr 0.7 / yr 0.5 / yr
DO(mg/L) / yr
NO 2 + NO 3 (mg/L) 0 – / yr 0.09 / yr
Total P (mg/L) 0 – / yr
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