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	0.371	0.085							42.6	53	NA
Achnanthidium minutissimum	pennate diatom	0.142	0.043	1	2	2	7	N	P	41.2	NA	NA
Fragilaria capucina var. gracilis	pennate diatom	0.099	0.180	1	1	2	2	N	V	30.6	18	22
Rossithidium linearis	pennate diatom	0.084	0.044					V	P	32	24	56
Scenedesmus acutus	colonial green	0.069	0.008							NA	NA	61
Scenedesmus ecornis	colonial green	0.060	0.014							39.9	23	69
Gomphonema parvulum	pennate diatom	0.035	0.044	4	4	2	5	N	S	42.2	21	NA
Encyonema silesiacum	pennate diatom	0.030	0.052	3	3	2	7	V	S	46.9	43	69
Cocconeis placentula var. lineata	pennate diatom	0.017	0.031	3	2	2	5	N	P	51.5	62	82
Ulnaria ulna	pennate diatom	0.014	0.390	3	4	2		N	E	34.2	17	21
Pediastrum duplex	colonial green	0.014	0.001							NA	NA	NA
Achnanthidium deflexum	pennate diatom	0.009	0.006		1	2	3	N	P	43.5	40	52
Navicula notha	pennate diatom	0.007	0.010					M	P	37.4	20	34
Ankistrodesmus falcatus	colonial green	0.007	0.001							45.7	58	75
Psammothidium subatomoides	pennate diatom	0.006	0.002	1	1	1	2	V	P	42.4	20	35
Nitzschia palea var. debilis	pennate diatom	0.005	0.002		1	1	1	H	P	53.4	47	79
Oedogonium	filamentous green	0.005	0.009							37.6	27	47
Navicula cryptocephala	pennate diatom	0.004	0.008	3	3	2	7	M	P	56.3	55	80
Nitzschia frustulum	pennate diatom	0.003	0.001	3	2	3	5	H	P	50.4	53	88
Melosira varians	centric diatom	0.002	0.011	3	3	2	5	N	U	67	67	89
Nitzschia dissipata	pennate diatom	0.002	0.004	2	2	2	4	H	P	60.9	48	75
Navicula hintzii	pennate diatom	0.002	0.003		2	2	7	M	P	42.1	NA	NA
Nitzschia acicularis	pennate diatom	0.002	0.001	4	3	2	5	H	P	NA	19	85
Gomphonema clevei	pennate diatom	0.002	0.009					N	S	31.3	NA	NA
Karayevia clevei	pennate diatom	0.002	0.002	2	2	2	4	V	P	54.3	NA	72
Geissleria decussis	pennate diatom	0.002	0.003		1	2	4	M	P	44.5	40	80
Fragilaria vaucheriae	pennate diatom	0.002	0.002	3	3	2	5	N	V	44.2	36	NA
Nitzschia perminuta	pennate diatom	0.002	0.001	1	1	2	2	H	P	56.7	53	76
Eunotia bilunaris	pennate diatom	0.002	0.007	2	2	2	7	V	E	37.6	17	28
Gomphonema clavatum	pennate diatom	0.001	0.003	1	1	1	4	N	S	43.6	NA	NA
Fragilaria parasitica	pennate diatom	0.001	0.001	1	2	2	4	N	V	NA	NA	NA
Cyclotella meneghiniana	centric diatom	0.001	0.001	5	4	3	5	N	U	72.6	55	73
Cymbella tumida	pennate diatom	0.001	0.021	1	1	2	4	V	S	57.8	48	78

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.