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 = B

Attains Class = NO

Reason = Model

Model Result = B

Prob. Class A = 0.04

Prob. Class B = 0.96

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 = 6 m

Wetted width = 4 m

Depth = 15 cm

Water velocity = 24 cm/s

Riffle = 80 %

Run = 10 %

Pool = 10 %

Canopy Cover = 70 %

Boulder = 40 %

Cobble = 35 %

Gravel = 10 %

Sand = 15 %

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:	Stanley Brook - Station 323	Sampled by:	Biomonitoring Unit
Town:	Mount Desert	Method:	Rock Scrapings 1 Inch Circles
Sample Date:	2016-06-27	Sample ID:	SA-323-2016R (1617)

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	0.413	0.081	1	2	2	7	N	P	41.2	NA	NA
Phormidium	Filamentous Cyanobacteria	0.261	0.089							42.6	60	NA
Woronichinia	Cyanobacteria	0.093	0.008							NA	NA	NA
Fragilaria gracilis	Pennate Diatom	0.042	0.018	1	1	2	2	N	V	30.6	18	22
Gomphonema parvulum	Pennate Diatom	0.021	0.026	4	4	2	5	N	S	42.2	21	NA
Diatoma mesodon	Pennate Diatom	0.021	0.099	1	1	1	3	N	U	9.7	2	2
Karayevia oblongella	Pennate Diatom	0.014	0.020	1	1	2	1	V	P	62.2	64	79
Unknown Rhodophyte Florideophycidae (Chantransia)	Red Algae	0.011	0.031							47.5	48	68
Cocconeis placentula var. lineata	Pennate Diatom	0.010	0.071	3	2	2	5	N	P	51.5	62	82
Fragilaria vaucheriae	Pennate Diatom	0.009	0.010	3	3	2	5	N	V	44.2	36	NA
Achnanthidium reimeri	Pennate Diatom	0.008	0.013		1	2		V	P	NA	33	24
Cocconeis placentula	Pennate Diatom	0.008	0.027	3	2	2	5	N	P	NA	30	82
Closterium eboracense	Desmid	0.007	0.182							NA	NA	NA
Meridion circulare	Pennate Diatom	0.006	0.016	2	2	2	7	N	E	46.5	64	87
Discostella stelligera	Centric Diatom	0.006	0.005			2		N	U	NA	51	NA
Eunotia minor	Pennate Diatom	0.006	0.016		1	1		V	E	42.4	19	34
Synedra rumpens	Pennate Diatom	0.005	0.004			2	2	N	E	34.3	20	32
Eunotia exigua	Pennate Diatom	0.004	0.003	2	3	2	7	V	E	21.7	13	13
Fragilaria capucina	Pennate Diatom	0.003	0.009		2	2	3	N	V	32.9	59	51
Gomphonema	Pennate Diatom	0.003	0.023					N	S	15.1	NA	NA
Gomphonema micropus	Pennate Diatom	0.003	0.006	2	2	2	5	N	S	39	72	89
Nitzschia dissipata	Pennate Diatom	0.003	0.005	2	2	2	4	H	P	60.9	48	75
Encyonema silesiacum	Pennate Diatom	0.003	0.013	3	3	2	7	V	S	46.9	43	69
Gomphonema angustum	Pennate Diatom	0.002	0.007	1	1	2	1	N	S	37.1	NA	NA
Gomphonema minusculum	Pennate Diatom	0.002	0.001					N	S	NA	38	51
Karayevia suchlandtii	Pennate Diatom	0.002	0.000	1	1	1	1	V	P	53.5	53	86
Navicula festiva	Pennate Diatom	0.002	0.007	1	1	1	1	M	P	NA	NA	NA
Navicula gregaria	Pennate Diatom	0.002	0.004	4	3	3	5	M	P	79.6	66	89
Nitzschia frustulum	Pennate Diatom	0.002	0.001	3	2	3	5	H	P	50.4	53	88
Ulnaria ulna	Pennate Diatom	0.002	0.008	3	4	2		N	E	34.2	17	21
Achnanthidium rivulare	Pennate Diatom	0.002	0.001					N	P	49.9	39	49
Cymbopleura naviculiformis	Pennate Diatom	0.002	0.026	2	2	2	5	V	S	51.6	35	53
Encyonema reichardtii	Pennate Diatom	0.002	0.000	1	1	2	3	V	S	76.1	66	71
Eunotia	Pennate Diatom	0.002	0.006					V	E	NA	NA	NA
Eunotia implicata	Pennate Diatom	0.002	0.023			1		V	E	28.3	16	15
Eunotia microcephala	Pennate Diatom	0.002	0.001	1	1	1	1	V	E	NA	NA	NA
Nitzschia fonticola	Pennate Diatom	0.001	0.001	2	2	2	4	H	P	82.2	49	80
Nitzschia paleaeformis	Pennate Diatom	0.001	0.002	2	2	2	7	H	P	NA	NA	NA
Pinnularia viridis	Pennate Diatom	0.001	0.117	3	2	2	7	M	P	66.8	26	52
Planothidium lanceolatum	Pennate Diatom	0.001	0.002	3	3	2	5	V	P	72.5	72	91
Psammothidium chlidanos	Pennate Diatom	0.001	0.002					V	P	32.5	16	14
Psammothidium subatomoides	Pennate Diatom	0.001	0.000	1	1	1	2	V	P	42.4	20	35
Amphora pediculus	Pennate Diatom	0.001	0.000	2	2	2	5	M	P	76.2	71	93
Pantocsekiella ocellata	Centric Diatom	0.001	0.001	1	1	1	4	N	U	NA	NA	NA
Diatoma vulgaris	Pennate Diatom	0.001	0.016	2	2	2	4	N	U	88.7	60	89

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.