"VARIABLE" "DESCRIPTION" "SAMPLE_TYPE" "UNITS" "RANGE_LOW" "RANGE_HIGH" "LEGAL_VALUES" "CLASS" "Class of taxon" "TAXA: Invertebrates" "FAMILY" "Family of taxon" "TAXA: Invertebrates" "FFG" "Functional feeding group used in metric calculations;Collector-filterer(CF),Collector-gatherer(CG),Parasite(PA),Piercer(PI),Scraper(SC),Shredder(SH)" "TAXA: Invertebrates" "FFG_WSA" "Functional feeding group assignment used in WSA-based metrics;Collector-filterer(CF),Collector-gatherer(CG),Parasite(PA),Piercer(PI),Scraper(SC),Shredder(SH)" "TAXA: Invertebrates" "GENUS" "Genus of taxon" "TAXA: Invertebrates" "HABIT" "Habit used in metric calculations;Burrower(BU),Climber(CB),Clinger(CN),Diver(DV),Planktonic(PK),Skater(SK),Sprawler(SP),Swimmer(SW)" "TAXA: Invertebrates" "HABIT_WSA" "Habit group assignment used in WSA-based metrics;Burrower(BU),Climber(CB),Clinger(CN),Diver(DV),Planktonic(PK),Skater(SK),Sprawler(SP),Swimmer(SW)" "TAXA: Invertebrates" "ITISTSN" "Taxonomic Serial Number assigned by IT IS" "TAXA: Invertebrates" "NON_TARGET" "Operational taxon unit for NRSA O/E" "TAXA: Invertebrates" "ORDER" "Order of taxon" "TAXA: Invertebrates" "PHYLUM" "Phylum of taxon" "TAXA: Invertebrates" "PTV" "Pollution tolerance value as assigned for NWSA" "TAXA: Invertebrates" "PTV_WSA" "Pollution tolerance value used in WSA-based metrics" "TAXA: Invertebrates" "PUBLICATION_DATE" "Date of data file publication" "SUBFAMILY" "Subfamily of taxon" "TAXA: Invertebrates" "TARGET_TAXON" "Name of taxon at target taxon level" "TAXA: Invertebrates" "TARGET_TAXON" "TAXANAME AT TARGET HIERARCHICAL TAXONOMIC LEVEL" "BERW" "TARGET_TAXON" "TAXANAME AT TARGET HIERARCHICAL TAXONOMIC LEVEL" "BETB" "TAXA_ID" "Taxonomic ID number" "TRIBE" "Tribe of taxon" "TAXA: Invertebrates" "VOLTINISM" "Voltinism as assigned by USGS" "TAXA: Invertebrates"