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 = A

Final Determination = A

Attains Class = YES

Reason = Model

Model Result = A

Prob. Class A = 1.00

Prob. Class B = 0.00

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 = 21 m

Wetted width = 11 m

Depth = 20 cm

Water velocity = 53 cm/s

Riffle = 40 %

Run = 60 %

Canopy Cover = 28 %

Cobble = 40 %

Gravel = 50 %

Sand = 10 %

Viewing Bucket and Land Use

Statutory Class: A

Nutrient Response Indicator Criterion: <19% Nuisance Algae Cover

Nuisance Algae in Survey: 12.7 % cover

Meets Nutrient Response Indicator Criterion: Yes

Site Information

Name:	West Branch Ellis River - Station 872	Sampled by:	Biomonitoring Unit
Town:	Andover	Method:	Rock Scrapings 1 Inch Circles
Sample Date:	2018-07-25	Sample ID:	SA-872-2018R (1775)

Taxa List (See key at end of report)

Name	Group	RB	Oxy	Sap	Sal	Tr	Mot	GF	Tol	TN	TP
Scenedesmus	Colonial Green	0.001							NA	NA	NA
Surirella tenera	Pennate Diatom	0.032	2	2	2	5	H	P	NA	NA	NA
Synedra rumpens	Pennate Diatom	0.002			2	2	N	E	34.3	20	32
Tabellaria flocculosa	Pennate Diatom	0.097	1	2	1	3	N	U	18.8	17	32
Tabellaria flocculosa var. linearis	Pennate Diatom	0.005					N	U	18.8	25	33
Ulnaria ulna	Pennate Diatom	0.063	3	4	2		N	E	34.2	17	21
Undetermined coccoid green	Colonial Green	0.008							NA	NA	NA
Achnanthidium minutissimum	Pennate Diatom	0.011	1	2	2	7	N	P	41.2	NA	NA
Achnanthidium rivulare	Pennate Diatom	0.000					N	P	49.9	39	49
Ankistrodesmus falcatus	Colonial Green	0.001							45.7	58	75
Batrachospermum	Red Algae	0.005							27.6	27	32
Brachysira microcephala	Pennate Diatom	0.001	2	1	2	2	M	P	18	12	18
Closterium	Desmid	0.020							NA	NA	NA
Cocconeis placentula var. lineata	Pennate Diatom	0.003	3	2	2	5	N	P	51.5	62	82
Encyonema minutum	Pennate Diatom	0.000			2		V	S	50.2	21	NA
Encyonema neogracile	Pennate Diatom	0.001	1	1	1	2	V	S	24	7	NA
Encyonema silesiacum	Pennate Diatom	0.001	3	3	2	7	V	S	46.9	43	69
Encyonopsis cesatiformis	Pennate Diatom	0.001					V	S	NA	NA	NA
Encyonopsis subminuta	Pennate Diatom	0.000					V	S	NA	30	36
Eucocconeis laevis	Pennate Diatom	0.002	1	1	1	1	V	P	29.5	17	18
Eunotia	Pennate Diatom	0.006					V	E	NA	NA	NA
Eunotia exigua	Pennate Diatom	0.000	2	3	2	7	V	E	21.7	13	13
Eunotia exigua var. tridentula	Pennate Diatom	0.000		1	1		V	E	NA	NA	NA
Eunotia implicata	Pennate Diatom	0.004			1		V	E	28.3	16	15
Eunotia muscicola var. tridentula	Pennate Diatom	0.000					V	E	1	2	NA
Fragilaria capucina	Pennate Diatom	0.001		2	2	3	N	V	32.9	59	51
Fragilaria gracilis	Pennate Diatom	0.006	1	1	2	2	N	V	30.6	18	22
Fragilaria distans	Pennate Diatom	0.001					N	V	NA	NA	NA
Fragilaria perminuta	Pennate Diatom	0.014					N	V	NA	NA	NA
Fragilaria vaucheriae	Pennate Diatom	0.006	3	3	2	5	N	V	44.2	36	NA
Gomphonema	Pennate Diatom	0.003					N	S	15.1	NA	NA
Gomphonema parvulum	Pennate Diatom	0.003	4	4	2	5	N	S	42.2	21	NA
Heteroleibleinia	Filamentous Cyanobacteria	0.000							NA	22	22
Monoraphidium contortum	Colonial Green	0.000							NA	NA	NA
Mougeotia	Filamentous Green	0.697							26.9	10	12
Navicula notha	Pennate Diatom	0.001					M	P	37.4	20	34
Stauridium tetras	Colonial Green	0.000							35.2	NA	NA
Peronia fibula	Pennate Diatom	0.002	1	1	1	2	M	S	NA	NA	NA
Psammothidium acidoclinatum	Pennate Diatom	0.000					V	P	NA	NA	NA
Pseudostaurosira brevistriata	Pennate Diatom	0.002	1	1	2	7	N	E	32.2	46	45
Rossithidium pusillum	Pennate Diatom	0.000	1	1	2	1	V	P	NA	21	52
Staurosira construens var. venter	Pennate Diatom	0.001	1	2	2	4	N	V	41.3	35	67

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.