LAKE AND STREAM METRICS

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Presentation transcript:

LAKE AND STREAM METRICS

LAKE MORPHOMETRIC PARAMETERS MAXIMUM LENGTH (Lmax) MAXIMUM WIDTH (Wmax) SURFACE AREA (A) VOLUME (V) MAXIMUM DEPTH (X) MEAN DEPTH (V/A) RELATIVE DEPTH (X AS % DIAMETER) SHORELINE (L) SHORELINE DEVELOPMENT (SLD=L/2(πa)1/2 )

STREAM MORPHOMETRIC PARAMETERS AREA OF WATERSHED STREAM ORDER DRAINAGE DENSITY (STREAM LENGTH/BASIN AREA) DISCHARGE

CALCULATING DISCHARGE

BIOTIC METRICS SHANNON DIVERSITY INDEX H’=-Σ(pi*ln(pi)) SIMPSON’S DIVERSITY INDEX λ = Σ(pi )2 SPECIES EVENNESS SDE = H’/lnR SPECIES RICHNESS R SIMILARITY INDICES POLLUTION TOLERANCE INDICES HILSENHOFF INDEX FOR BENTHOS (0-10) OTHER COMMUNITY-SPECIFIC INDICES

PARTIAL LIST OF METRICS FOR BENTHOS Abundance Measures Corrected Abundance EPT Abundance Dominance Measures Dominant Taxon Dominant Abundance 2nd Dominant Taxon 2nd Dominant Abundance 3rd Dominant Taxon 3rd Dominant Abundance % Dominant Taxon % 2 Dominant Taxa % 3 Dominant Taxa Richness Measures Species Richness EPT Richness Ephemeroptera Richness Plecoptera Richness Trichoptera Richness Chironomidae Richness Oligochaeta Richness Non-Chiro. Non-Olig. Richness Rhyacophila Richness Community Composition % Ephemeroptera % Plecoptera % Trichoptera % EPT % Coleoptera % Diptera % Oligochaeta % Baetidae % Brachycentridae % Chironomidae % Ephemerellidae % Hydropsychidae % Odonata % Perlidae % Pteronarcyidae % Simuliidae Functional Group Composition % Filterers % Gatherers % Predators % Scrapers % Shredders % Piercer-Herbivores % Unclassified Filterer Richness Gatherer Richness Predator Richness Scraper Richness Shredder Richness Piercer-Herbivore Richness Unclassified Diversity/Evenness Measures Shannon-Weaver H' (log 10) Shannon-Weaver H' (log 2) Shannon-Weaver H' (log e) Margalef's Richness Pielou's J' Simpson's Heterogeneity Biotic Indices % Indiv. w/ HBI Value Hilsenhoff Biotic Index % Indiv. w/ MTI Value Metals Tolerance Index % Indiv. w/ FSBI Value Fine Sediment Biotic Index FSBI - average FSBI - weighted average % Indiv. w/ TPM Value Temp. Pref. Metric - average TPM - weighted average Karr BIBI Metrics Long-Lived Taxa Richness Clinger Richness % Clingers Intolerant Taxa Richness % Tolerant Individuals % Tolerant Taxa Coleoptera Richness