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 = B

Final Determination = N

Attains Class = NO

Reason = Model

Model Result = N

Prob. Class A = 0.00

Prob. Class B = 0.00

Prob. Class C = 0.01

Prob. NA = 0.99

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 = 8 m

Wetted width = 5 m

Depth = 9 cm

Water velocity = 13 cm/s

Riffle = 50 %

Run = 20 %

Pool = 30 %

Canopy Cover = 79 %

Boulder = 30 %

Cobble = 25 %

Gravel = 20 %

Sand = 20 %

Silt = 5 %

Viewing Bucket and Land Use

Statutory Class: B

Nutrient Response Indicator Criterion: <24% Nuisance Algae Cover

Nuisance Algae in Survey: 5.4 % cover

Meets Nutrient Response Indicator Criterion: Yes

Site Information

Name:	Capehart Brook - Station 311	Sampled by:	Biomonitoring Unit
Town:	Bangor	Method:	Rock Scrapings 1 Inch Circles
Sample Date:	2016-06-21	Sample ID:	SA-311-2016R (1612)

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	0.494	0.074	1	2	2	7	N	P	41.2	NA	NA
Amphora pediculus	Pennate Diatom	0.105	0.028	2	2	2	5	M	P	76.2	71	93
Navicula lanceolata	Pennate Diatom	0.076	0.265	3	3	3	5	M	P	77.5	75	98
Cocconeis placentula	Pennate Diatom	0.046	0.096	3	2	2	5	N	P	NA	30	82
Leptolyngbya	Filamentous Cyanobacteria	0.038	0.001							38.3	28	75
Cocconeis pediculus	Pennate Diatom	0.033	0.286	2	2	3	5	N	P	72.3	68	88
Encyonema silesiacum	Pennate Diatom	0.033	0.046	3	3	2	7	V	S	46.9	43	69
Nitzschia palea var. debilis	Pennate Diatom	0.033	0.016		1	1	1	H	P	53.4	47	79
Nitzschia acicularis	Pennate Diatom	0.018	0.009	4	3	2	5	H	P	NA	19	85
Navicula gregaria	Pennate Diatom	0.013	0.008	4	3	3	5	M	P	79.6	66	89
Rhoicosphenia abbreviata	Pennate Diatom	0.013	0.018	2	2	2	5	V	S	83.4	72	96
Cyclotella meneghiniana	Centric Diatom	0.008	0.016	5	4	3	5	N	U	72.6	55	73
Eolimna minima	Pennate Diatom	0.008	0.001	4	4	2	5	M	P	57	64	88
Fragilaria vaucheriae	Pennate Diatom	0.008	0.005	3	3	2	5	N	V	44.2	36	NA
Achnanthidium rivulare	Pennate Diatom	0.006	0.002					N	P	49.9	39	49
Meridion circulare	Pennate Diatom	0.006	0.011	2	2	2	7	N	E	46.5	64	87
Reimeria sinuata	Pennate Diatom	0.006	0.004	1	2	2	3	M	P	60.9	65	88
Encyonema minutum	Pennate Diatom	0.005	0.004			2		V	S	50.2	21	NA
Navicula capitatoradiata	Pennate Diatom	0.005	0.006	3	3	2	5	M	P	68.5	62	78
Navicula cryptocephala	Pennate Diatom	0.005	0.004	3	3	2	7	M	P	56.3	55	80
Nitzschia acidoclinata	Pennate Diatom	0.005	0.001	1	2	1	3	H	P	51.6	40	56
Closterium	Desmid	0.003	0.009							NA	NA	NA
Melosira varians	Centric Diatom	0.003	0.023	3	3	2	5	N	U	67	67	89
Navicula libonensis	Pennate Diatom	0.003	0.004					M	P	NA	NA	NA
Nitzschia linearis	Pennate Diatom	0.003	0.025	2	2	2	4	H	P	54.2	68	87
Planothidium frequentissimum	Pennate Diatom	0.003	0.001	3	4	2		V	P	65.1	69	92
Staurastrum punctulatum	Desmid	0.003	0.019							NA	15	21
Surirella minuta	Pennate Diatom	0.003	0.009	3	3	2	5	H	P	79.7	69	95
Achnanthidium eutrophilum	Pennate Diatom	0.002	0.000					N	P	NA	33	52
Asterionella formosa	Pennate Diatom	0.002	0.002	2	2	2	4	N	U	NA	26	NA
Cocconeis placentula var. euglypta	Pennate Diatom	0.002	0.003	3	2	2	5	N	P	58.2	45	81
Navicula menisculus	Pennate Diatom	0.002	0.002	3	3	2	5	M	P	64.3	44	72
Nitzschia frustulum	Pennate Diatom	0.002	0.000	3	2	3	5	H	P	50.4	53	88
Nitzschia palea	Pennate Diatom	0.002	0.001	4	5	2	6	H	P	60.3	67	89
Planothidium lanceolatum	Pennate Diatom	0.002	0.001	3	3	2	5	V	P	72.5	72	91
Sellaphora seminulum	Pennate Diatom	0.002	0.000	4	4	2	5	M	P	51.5	67	73

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.