Maine Department of Environmental Protection
 Biological Monitoring Program
 Stream Algae Report

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Model Results and Variables

 Blue = this sample. Boxplots = range of all samples. Grey shaded areas = range of reference sites

Additional Metrics

Stream Characteristics and Water Chemistry

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Taxa List (See key at end of report)

Name	Group	RA	RB	Oxy	Sap	Sal	Tr	Mot	GF	Tol	TN	TP
Achnanthidium minutissimum	pennate diatom	0.450	0.142	1	2	2	7	N	P	41.2	NA	NA
Gomphonema parvulum	pennate diatom	0.392	0.519	4	4	2	5	N	S	42.2	21	NA
Audouinella	red algae	0.031	0.016							47.5	54	69
Eolimna minima	pennate diatom	0.018	0.005	4	4	2	5	M	P	57	64	88
Reimeria sinuata	pennate diatom	0.017	0.019	1	2	2	3	M	P	60.9	65	88
Planothidium frequentissimum	pennate diatom	0.015	0.013	3	4	2		V	P	65.1	69	92
Nitzschia palea var. debilis	pennate diatom	0.014	0.007		1	1	1	H	P	53.4	47	79
Cocconeis placentula var. euglypta	pennate diatom	0.012	0.022	3	2	2	5	N	P	58.2	45	81
Navicula trivialis	pennate diatom	0.011	0.059	3	3	3	5	M	P	78.6	68	98
Navicula notha	pennate diatom	0.006	0.009					M	P	37.4	20	34
Mougeotia 5-7 µm	filamentous green	0.006	0.090							26.9	10	12
Navicula menisculus	pennate diatom	0.005	0.008	3	3	2	5	M	P	64.3	44	72
Meridion circulare	pennate diatom	0.003	0.013	2	2	2	7	N	E	46.5	64	87
Navicula phyllepta	pennate diatom	0.003	0.008					M	P	NA	NA	NA
Nitzschia subacicularis	pennate diatom	0.003	0.001	1	2	2	7	H	P	NA	NA	NA
Navicula cryptotenella	pennate diatom	0.003	0.006		2	2	7	M	P	44.6	61	82
Caloneis bacillum	pennate diatom	0.003	0.006	2	2	2	4	M	P	64.9	72	96
Nitzschia perminuta	pennate diatom	0.003	0.002	1	1	2	2	H	P	56.7	53	76
Nitzschia acidoclinata	pennate diatom	0.002	0.001	1	2	1	3	H	P	51.6	40	56
Navicula viridula	pennate diatom	0.002	0.034	2	3	2	5	M	P	70.7	74	NA
Cocconeis pediculus	pennate diatom	0.002	0.021	2	2	3	5	N	P	72.3	68	88

Taxa List Key

Column	Name	Description
RA	Relative Abundance	number of cells (density of cells per square centimeter) in a sample / total abundance of all taxa
RB	Relative Biovolume	Volume of a taxon’s cells in a sample / volume of all algae cells in a sample
Oxy	van Dam Oxygen tolerance	1=100% DO saturation, 2=>75% DO saturation, 3=>50% DO saturation, 4=>30% DO saturation, 5=<30% DO saturation
Sap	van Dam Saprobic value	Saprobic values relate to the amount of organic pollution, biological oxygen demand, and DO concentrations. Values range from 1 (intolerant of organic pollution) to 5 (highly tolerant of organic pollution)
Sal	van Dam Salinity value	1=freshwater (<100 mg/L chloride) , 2=fresh-brackish (<500 mg/L), 3=brackish-freshwater (500-1000 mg/L), 4=brackish (1000-5000 mg/L)
Tr	van Dam Trophic value	1=oligotraphentic, 2=oligo-mesotraphentic, 3=mesotraphentic, 4=meso-eutraphentic, 5=eutraphentic, 6=hypereutraphentic, 7=indifferent to trophic state
Mot	Motility of Diatoms	Motility (capability of movement in water or on substrates) based on genus (Wang et al. 2005): N= not motile, M = motile , H = highly motile, V=variable within genus
GF	Growth Forms	E= erect, P=prostrate, S=stalked, U=unattached, V=variable (based on communication with R. Jan Stevenson)
Tol	Tolerance value	Tolerance to a combination of watershed disturbance, conductivity, and nutrient enrichment (based on Maine data). Value range from 1=most senstive to 100=most tolerant.
TN	TN value	Preference for total nitrogen (TN) based on Maine data. Values range from 1=low TN concentrations to 100=high TN concentrations.
TP	TP value	Preference for total phosphorus (TP) based on Maine data. Values range from 1=low TP concentrations to 100=high TP concentrations.