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
Phormidium tergestinium	filamentous cyanobacteria	0.515	0.191							42.6	53	NA
Achnanthidium minutissimum	pennate diatom	0.153	0.083	1	2	2	7	N	P	41.2	NA	NA
Achnanthidium deflexum	pennate diatom	0.144	0.162		1	2	3	N	P	43.5	40	52
Merismopedia glauca	cyanobacteria	0.058	0.007							NA	NA	NA
Fragilaria capucina var. gracilis	pennate diatom	0.028	0.091	1	1	2	2	N	V	30.6	18	22
Gomphonema kobayasii	pennate diatom	0.021	0.067					N	S	71.2	50	79
Audouinella	red algae	0.012	0.011							47.5	54	69
Gomphonema minutum	pennate diatom	0.011	0.047		2	2	5	N	S	54.6	61	55
Fragilaria famelica	pennate diatom	0.011	0.009	1	1	2	3	N	V	NA	NA	NA
Gomphonema parvulum	pennate diatom	0.009	0.022	4	4	2	5	N	S	42.2	21	NA
Navicula capitatoradiata	pennate diatom	0.007	0.049	3	3	2	5	M	P	68.5	62	78
Nitzschia palea var. debilis	pennate diatom	0.004	0.003		1	1	1	H	P	53.4	47	79
Cocconeis placentula var. euglypta	pennate diatom	0.004	0.014	3	2	2	5	N	P	58.2	45	81
Navicula cryptotenella	pennate diatom	0.003	0.008		2	2	7	M	P	44.6	61	82
Gomphonema clevei	pennate diatom	0.003	0.016					N	S	31.3	NA	NA
Encyonopsis microcephala	pennate diatom	0.003	0.002	1	1	2	4	V	S	34.8	17	24
Cymbella tumida	pennate diatom	0.003	0.116	1	1	2	4	V	S	57.8	48	78
Encyonema auerswaldii	pennate diatom	0.002	0.021					V	S	NA	NA	NA
Navicula cryptocephala	pennate diatom	0.002	0.007	3	3	2	7	M	P	56.3	55	80
Gomphonema augur	pennate diatom	0.001	0.027	1	2	2	4	N	S	NA	NA	NA
Eolimna minima	pennate diatom	0.001	0.000	4	4	2	5	M	P	57	64	88
Nitzschia supralitorea	pennate diatom	0.001	0.000	2	3	2	5	H	P	65.4	62	89
Reimeria sinuata	pennate diatom	0.001	0.002	1	2	2	3	M	P	60.9	65	88
Fragilaria vaucheriae	pennate diatom	0.001	0.001	3	3	2	5	N	V	44.2	36	NA
Gomphonema pumilum	pennate diatom	0.001	0.003			2	7	N	S	43.6	14	21
Gomphonema truncatum	pennate diatom	0.001	0.035	2	2	2	4	N	S	36.5	47	44
Eunotia bilunaris	pennate diatom	0.001	0.005	2	2	2	7	V	E	37.6	17	28

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.