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 = 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 = 42 m

Wetted width = 33 m

Depth = 23 cm

Water velocity = 33 cm/s

Riffle = 0 %

Run = 100 %

Pool = 0 %

Canopy Cover = 11 %

Bedrock = 0 %

Boulder = 30 %

Cobble = 40 %

Gravel = 30 %

Sand = 0 %

Silt = 0 %

Clay = 0 %

Viewing Bucket and Land Use

Statutory Class: AA

Nutrient Response Indicator Criterion: <19% Nuisance Algae Cover

Nuisance Algae in Survey: 3.2 % cover

Meets Nutrient Response Indicator Criterion: Yes

Site Information

Name:	Carrabassett River - Station 606	Sampled by:	Biomonitoring Unit
Town:	Kingfield	Method:	Rock Scrapings 1 Inch Circles
Sample Date:	2007-07-24	Sample ID:	SA-606-2007R (723)

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	0.202	0.014	1	2	2	7	N	P	41.2	NA	NA
Phormidium	Filamentous Cyanobacteria	0.128	0.004							42.6	60	NA
Homoeothrix varians	Filamentous Cyanobacteria	0.125	0.001							NA	32	66
Gongrosira	Filamentous Green	0.101	0.073							37.3	37	NA
Fragilaria crotonensis	Pennate Diatom	0.075	0.025	2	2	2	3	N	V	NA	53	64
Oedogonium	Filamentous Green	0.074	0.657							37.6	27	47
Mougeotia	Filamentous Green	0.064	0.127							26.9	10	12
Bulbochaete	Filamentous Green	0.063	0.047							25.1	11	8
Brachysira microcephala	Pennate Diatom	0.038	0.003	2	1	2	2	M	P	18	12	18
Pediastrum duplex	Colonial Green	0.026	0.000							NA	NA	NA
Tabellaria flocculosa	Pennate Diatom	0.015	0.003	1	2	1	3	N	U	18.8	17	32
Cymbella turgidula	Pennate Diatom	0.007	0.003					V	S	NA	NA	NA
Cosmarium undulatum var. minutum	Desmid	0.006	0.000							NA	18	15
Scenedesmus acutus	Colonial Green	0.006	0.000							NA	NA	61
Delicata delicatula	Pennate Diatom	0.005	0.001	1	1	1	1	V	S	31.3	21	22
Fragilaria capucina	Pennate Diatom	0.005	0.000		2	2	3	N	V	32.9	59	51
Gomphonema minusculum	Pennate Diatom	0.005	0.000					N	S	NA	38	51
Staurastrum punctulatum	Desmid	0.005	0.027							NA	15	21
Synedra rumpens	Pennate Diatom	0.005	0.000			2	2	N	E	34.3	20	32
Gomphonema angustatum	Pennate Diatom	0.004	0.000	1	1	2	1	N	S	58	50	84
Sellaphora stroemii	Pennate Diatom	0.004	0.000	1		2		M	P	48.6	NA	NA
Achnanthidium rivulare	Pennate Diatom	0.003	0.000					N	P	49.9	39	49
Cymbella cistula	Pennate Diatom	0.003	0.001	2	2	2	5	V	S	23.7	NA	NA
Encyonema silesiacum	Pennate Diatom	0.003	0.006	3	3	2	7	V	S	46.9	43	69
Gomphonema acuminatum	Pennate Diatom	0.003	0.002	2	2	2	5	N	S	26.7	13	15
Gomphonema parvulum	Pennate Diatom	0.003	0.000	4	4	2	5	N	S	42.2	21	NA
Gomphonema variostriatum	Pennate Diatom	0.003	0.001					N	S	NA	NA	NA
Navicula cryptotenella	Pennate Diatom	0.003	0.000		2	2	7	M	P	44.6	61	82
Cosmarium angulosum	Desmid	0.002	0.001							26	18	15
Cymbella affinis	Pennate Diatom	0.002	0.001	1	2	2	5	V	S	36.4	36	39
Gomphonema sp. 32 NAWQA EAM	Pennate Diatom	0.002	0.000					N	S	15.1	NA	NA
Achnanthidium deflexum	Pennate Diatom	0.001	0.000		1	2	3	N	P	43.5	40	52
Eucocconeis laevis	Pennate Diatom	0.001	0.001	1	1	1	1	V	P	29.5	17	18
Eunotia implicata	Pennate Diatom	0.001	0.001			1		V	E	28.3	16	15
Fragilaria tenera	Pennate Diatom	0.001	0.000	1	1	1	2	N	V	31.9	27	41
Gomphonema patrickiae	Pennate Diatom	0.001	0.000					N	S	NA	22	36
Psammothidium grischunum fo. daonensis	Pennate Diatom	0.001	0.000	1	1	1	1	V	P	30.2	31	39
Ulnaria delicatissima var. angustissima	Pennate Diatom	0.001	0.001					N	E	NA	NA	NA
Ulnaria contracta	Pennate Diatom	0.001	0.001					N	E	NA	NA	NA

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.