VARNUM NAME LABEL TYPE LENGTH 1 SITE_ID Unique site identification number 2 24 2 VISIT_NO Lake visit number. 1-1st field sampling visit; 2-2nd field sampling visit 1 3 SITE_TYPE PROB_Samp: Lake is from probability sample and can be used for population estimation. REF_Lake: Lake is not from probability sample and was selected as a candidate reference lake 2 9 4 LAKE_SAMP Evaluation status 2 20 5 DATE_COL Date of site visit 1 6 DATEPHYT Date phytosample collected 1 7 SAMPLED_PHYT Phytoplankton sample collected? 2 16 8 SAMPLE_CATEGORY (P)rimary or Field (D)uplicate 2 4 9 INDXSAMP_PHYT Index phytoplankton sample for site (YES/NO)-typically the Visit 1 Primary sample 2 3 10 SAMPLE_TYPE Type of sample (soft ALGAE/DIATOM) 2 6 11 SAMPLE_DEPTH Depth of integrated sample (typically 2 m) 1 12 PHYT_VOLUME Sample volume (mL) 1 13 PRESERVED_PHYT Sample preserved (Y/blank) 2 8 14 FLAG_FLD_PHYT Field flag for phytoplankton 2 8 15 COMMENT_FLD_PHYT Comment and field flag explanations for phytoplankton 2 1000 16 SAMPLE_ID Sample ID number 1 17 INIT_VOL Initial volume (mL) or weight of sample (typically 1/3 of 1000 mL) 1 18 VOL_COUNT Volume counted (mL) 1 19 CONC_VOL Volume of concentrated sample (mL) used for fixed count 1 20 TOT_AREA Area of slide or counting chamber bottom (mm2) 1 21 CNT_AREA Area counted (mm2) 1 22 OTU Operational Taxonomic Unit 2 26 23 TAXANAME Unique taxon name 2 46 24 ABUND Abundance (cells/mL) 1 25 COUNT Number of cells (if natural units) 1 26 UNITCELLS Estimated number of cells (if natural units) 2 6 27 BIOVOLUME Total cell volume (L) (=Cell volume * abund) 1 28 CELL_VOLUME Taxa specific biovolume (um^3 cell/mL water) 1 29 DIVISION_CNT Division name (from count file) 2 31 30 ORDER_CNT Order name (from count file) 2 17 31 FAMILY_CNT Family name (from count file) 2 19 32 GENUS_CNT Genus name (from count file) 2 47 33 SPECIES_CNT Species name (from count file) 2 16 34 VARIETY_CNT Variety name (from count file) 2 12 35 DISTINCT Distinct taxon within sample (assigned at Lab)? (Y/N) 2 1 36 OTU_TAXA Operational Taxonomic Unit (from taxa list) 2 26 37 DIVISION Division name (from taxa list) 2 31 38 ORDER Order name (from taxa list) 2 17 39 FAMILY Family name (from taxa list) 2 19 40 GENUS Genus name (from taxa list) 2 47 41 SPECIES Species name (from taxa list) 2 16 42 VARIETY Variety name (from taxa list) 2 12 43 TAXATYPE Type of algae 2 17 44 TAXONOMIST_CNT Initials of taxonomist assigning the taxon name (from count file) 2 12 45 COMMENT_LAB_PHYT Laboratory personnel comments 2 255 46 DATATYPE Type of data 2 8 47 SOURCELAB Laboratory submitting data 2 2 48 SOURCEDATE Date results submitted (YYYYMMDD) 2 9 49 LAB_ID Sample ID assiged by laboratory 2 10 50 VISIT_ID ID of site visit 1