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	
