stream_algae_report_short_AP

Maine Department of Environmental Protection
Biological Monitoring Program
Stream Algae Report

Model Results and Variables

Blue = this sample. Boxplots = range of all samples. Grey shaded areas = 90th and/or 10th percentile of reference site values.

Statutory Class = AA

Final Determination = A

Attains Class = YES

Reason = Model

Model Result = A

Prob. Class A = 0.98

Prob. Class B = 0.02

Prob. Class C = 0.00

Prob. NA = 0.00

Additional Metrics

Stream Characteristics and Water Chemistry

Blue = this sample. Boxplots = range of all samples. Grey shaded areas = 10th to 90th percentile of reference site values

Bankfull width = 11 m

Wetted width = 11 m

Depth = 30 cm

Water velocity = 24 cm/s

Riffle = 50 %

Run = 50 %

Canopy Cover = 63 %

Boulder = 20 %

Cobble = 30 %

Gravel = 30 %

Sand = 20 %

Viewing Bucket and Land Use

Statutory Class: AA

Nutrient Response Indicator Criterion: <19% Nuisance Algae Cover

Nuisance Algae in Survey: 0 % cover

Meets Nutrient Response Indicator Criterion: Yes

Site Information

Name:	Pleasant River (Downeast) - Station 293	Sampled by:	Biomonitoring Unit
Town:	T18 Md Bpp	Method:	Rock Scrapings 1 Inch Circles
Sample Date:	2016-07-11	Sample ID:	SA-293-2016R (1634)

Taxa List (See key at end of report)

Name	Group	RA	RB	Oxy	Sap	Sal	Tr	Mot	GF	Tol	TN	TP
Tabellaria flocculosa	Pennate Diatom	0.309	0.390	1	2	1	3	N	U	18.8	17	32
Achnanthidium minutissimum	Pennate Diatom	0.204	0.041	1	2	2	7	N	P	41.2	NA	NA
Phormidium	Filamentous Cyanobacteria	0.116	0.013							42.6	60	NA
Leptolyngbya	Filamentous Cyanobacteria	0.070	0.003							38.3	28	75
Synedra rumpens	Pennate Diatom	0.051	0.022			2	2	N	E	34.3	20	32
Eunotia	Pennate Diatom	0.049	0.089					V	E	NA	NA	NA
Fragilaria sepes	Pennate Diatom	0.022	0.009	1	1	1	2	N	V	32.1	18	39
Gomphonema exilissimum	Pennate Diatom	0.018	0.016	1	1	1	1	N	S	NA	19	29
Rossithidium anastasiae	Pennate Diatom	0.015	0.014					V	P	NA	NA	NA
Eunotia exigua	Pennate Diatom	0.015	0.011	2	3	2	7	V	E	21.7	13	13
Fragilaria	Pennate Diatom	0.013	0.006					N	V	NA	NA	NA
Achnanthidium rivulare	Pennate Diatom	0.012	0.004					N	P	49.9	39	49
Pinnularia mesogongyla	Pennate Diatom	0.012	0.040			1		M	P	NA	NA	NA
Eunotia pectinalis var. undulata	Pennate Diatom	0.011	0.132	1	2	1	1	V	E	24.3	22	35
Fragilariforma virescens var. capitata	Pennate Diatom	0.008	0.007			1		N	V	NA	NA	NA
Navicula notha	Pennate Diatom	0.008	0.007					M	P	37.4	20	34
Eunotia bilunaris	Pennate Diatom	0.007	0.021	2	2	2	7	V	E	37.6	17	28
Psammothidium subatomoides	Pennate Diatom	0.005	0.001	1	1	1	2	V	P	42.4	20	35
Navicula laterostrata	Pennate Diatom	0.005	0.001	1	1	2		M	P	NA	NA	NA
Melosira varians	Centric Diatom	0.004	0.077	3	3	2	5	N	U	67	67	89
Gomphonema parvulum	Pennate Diatom	0.004	0.003	4	4	2	5	N	S	42.2	21	NA
Pinnularia subcapitata	Pennate Diatom	0.004	0.006	3	2	2	2	M	P	19.5	NA	NA
Fragilaria crotonensis	Pennate Diatom	0.003	0.004	2	2	2	3	N	V	NA	53	64
Tabellaria fenestrata	Pennate Diatom	0.003	0.022	1	2	1	2	N	U	18.8	16	28
Achnanthidium eutrophilum	Pennate Diatom	0.003	0.000					N	P	NA	33	52
Psammothidium	Pennate Diatom	0.003	0.002					V	P	NA	NA	NA
Gomphonema lagenula	Pennate Diatom	0.003	0.004					N	S	NA	38	78
Frustulia crassinervia	Pennate Diatom	0.003	0.006	1	1	1	1	M	P	24.7	27	61
Navicula angusta	Pennate Diatom	0.003	0.004	1	1	1	1	M	P	11.8	NA	NA
Navicula cryptotenella	Pennate Diatom	0.003	0.002		2	2	7	M	P	44.6	61	82
Pinnularia	Pennate Diatom	0.003	0.004					M	P	NA	NA	NA
Nitzschia gracilis	Pennate Diatom	0.003	0.004	2	2	1	3	H	P	46.9	22	64
Aulacoseira alpigena	Centric Diatom	0.001	0.000	1	1	1	1	N	U	43.4	25	51
Cocconeis placentula	Pennate Diatom	0.001	0.004	3	2	2	5	N	P	NA	30	82
Eunotia circumborealis	Pennate Diatom	0.001	0.015			1		V	E	NA	NA	NA
Eunotia incisa	Pennate Diatom	0.001	0.002	1	1	1	1	V	E	24.8	18	35
Cymbella cistula	Pennate Diatom	0.001	0.006	2	2	2	5	V	S	23.7	NA	NA
Gomphonema affine	Pennate Diatom	0.001	0.006	1	2	2	3	N	S	34.3	NA	NA
Eolimna minima	Pennate Diatom	0.001	0.000	4	4	2	5	M	P	57	64	88
Nitzschia palea var. debilis	Pennate Diatom	0.001	0.001		1	1	1	H	P	53.4	47	79

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.