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Final stuff: n Lab practical –Coleoptera, Hemiptera n Final exam: Fri May 2 @ 2:15 –Assessment with Invertebrates n Lecture material (IDEM protocol) n Stone et al. (2005): Ag streams in Illinois n Signatures of ICI; Ohio EPA use of ICI
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Today n IDEM sampling n Stone et al. (2005) paper n Assessment exercise
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MACROINVERTEBRATE COMMUNITY MONITORING EXAMPLE INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT
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STAGES OF BIOLOGICAL COMMUNITY ASSESSMENT n n DATA REDUCTION AND ANALYSIS FIELD PROCESSING n LABORATORY PROCESSING n SAMPLE COLLECTION
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What are We Trying to Measure ??
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“The ability of an aquatic ecosystem to support and maintain a balanced, integrated, adaptive community of organisms having a species composition, diversity, and functional organization comparable to the best natural habitats within a region.” BIOLOGICAL INTEGRITY
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STAGES OF A BIOLOGICAL COMMUNITY ASSESSMENT n n DATA REDUCTION AND ANALYSIS FIELD PROCESSING n LABORATORY PROCESSING n SAMPLE COLLECTION
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Aquatic Larvae Aquatic Adults Terrestrial Adults
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Adult and Larval Caddisflies (Trichoptera)
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USEPA Rapid Bioassessment Protocols Riffle Habitats
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Two Composite KICK Screen Samples
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STAGES OF A BIOLOGICAL COMMUNITY ASSESSMENT n n DATA REDUCTION AND ANALYSIS FIELD PROCESSING n LABORATORY PROCESSING n SAMPLE COLLECTION
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Sample Elutriation Remove Gravel and Sand Remove Excess CPOM
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The Final Sample Ready for Preservation
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Field Preservation of Samples
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GPS for Spatial Reference PAPERWORK…PAPERWORK…. TRIPLE REDUNDANCY Water Chemistry Habitat Assessments Field Observations
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STAGES OF A BIOLOGICAL COMMUNITY ASSESSMENT n n DATA REDUCTION AND ANALYSIS FIELD PROCESSING n LABORATORY PROCESSING n SAMPLE COLLECTION
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All Samples are Returned to Laboratory for Processing
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Squares (25 cm 2 ) Removed by Suction to Petri Dish 100 Organism Sub-Sample 15 Minute Sort Sub-Sample
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100 Organism Sub-Sample Selected at Random Second Sub-Sample 15 Minutes Entire Pan “Randomly” Sorted Using Forceps Final Sort Under Microscope
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Sub-Samples Processed to Family Level
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All Samples Preserved for Permanent Museum Storage
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STAGES OF A BIOLOGICAL COMMUNITY ASSESSMENT n n DATA REDUCTION AND ANALYSIS FIELD PROCESSING n LABORATORY PROCESSING n SAMPLE COLLECTION
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TEN SUB- METRICS SITE INFORMATION TAXONOMIC INFORMATION AND TAXA COUNTS LABORATORY BENCHSHEET
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Example of 2 Sub-Metrics E P T EPT Index = 6 Families EPT Count = 7 Individuals Metric Scores = 0, 2, 4, 6, 8
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Scoring Criteria for Riffle KICK Samples
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Not All Rivers and Streams Have Riffle Habitats
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Multi-Plate Samples are Collected Individually Multi-Plate Samples are Preserved in the Field and Scraped in the Laboratory
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Systematic Community Assessments of Benthic Macroinvertebrate Communities are Effective SUMMARY
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IBI -- Family Level Multi-Metric Indices Provide: n n Cost Effective Data of Ecological Health of Rivers and Streams n n n n Assessment Information to Make Management Decisions
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