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 = C

Attains Class = NO

Reason = Model

Model Result = C

Prob. Class A = 0.00

Prob. Class B = 0.00

Prob. Class C = 0.99

Prob. NA = 0.01

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 = 28 m

Wetted width = 28 m

Depth = 42 cm

Water velocity = 88 cm/s

Riffle = 100 %

Canopy Cover = 0 %

Boulder = 30 %

Cobble = 30 %

Gravel = 30 %

Sand = 10 %

Viewing Bucket and Land Use

Statutory Class: B

Nutrient Response Indicator Criterion: <24% Nuisance Algae Cover

Nuisance Algae in Survey: 2.2 % cover

Meets Nutrient Response Indicator Criterion: Yes

Site Information

Name:	Prestile Stream - Station 3	Sampled by:	Biomonitoring Unit
Town:	Blaine	Method:	Rock Scrapings 1 Inch Circles
Sample Date:	2014-07-31	Sample ID:	SA-3-2014R (1419)

Taxa List (See key at end of report)

Name	Group	RA	RB	Oxy	Sap	Sal	Tr	Mot	GF	Tol	TN	TP
Achnanthidium pyrenaicum	Pennate Diatom	0.327	0.145					N	P	NA	62	80
Phormidium	Filamentous Cyanobacteria	0.280	0.094							42.6	60	NA
Achnanthidium minutissimum	Pennate Diatom	0.099	0.012	1	2	2	7	N	P	41.2	NA	NA
Unknown Rhodophyte Florideophycidae (Chantransia)	Red Algae	0.086	0.164							47.5	48	68
Pseudanabaena	Filamentous Cyanobacteria	0.079	0.004							NA	71	84
Gongrosira	Filamentous Green	0.043	0.222							37.3	37	NA
Scenedesmus acutus	Colonial Green	0.034	0.006							NA	NA	61
Stauridium tetras	Colonial Green	0.014	0.003							35.2	NA	NA
Cosmarium subcrenatum	Desmid	0.007	0.159							NA	18	15
Cocconeis placentula var. lineata	Pennate Diatom	0.005	0.025	3	2	2	5	N	P	51.5	62	82
Cymbella affinis	Pennate Diatom	0.004	0.015	1	2	2	5	V	S	36.4	36	39
Ankistrodesmus	Colonial Green	0.003	0.001							47.5	NA	NA
Achnanthidium rivulare	Pennate Diatom	0.002	0.001					N	P	49.9	39	49
Cocconeis pediculus	Pennate Diatom	0.002	0.033	2	2	3	5	N	P	72.3	68	88
Cosmarium	Desmid	0.002	0.098							NA	18	15
Cyclotella meneghiniana	Centric Diatom	0.002	0.008	5	4	3	5	N	U	72.6	55	73
Gomphonema minutum	Pennate Diatom	0.002	0.002		2	2	5	N	S	54.6	61	55
Amphora pediculus	Pennate Diatom	0.001	0.000	2	2	2	5	M	P	76.2	71	93
Encyonema auerswaldii	Pennate Diatom	0.001	0.001					V	S	NA	NA	NA
Encyonema silesiacum	Pennate Diatom	0.001	0.001	3	3	2	7	V	S	46.9	43	69
Navicula antonii	Pennate Diatom	0.001	0.000					M	P	65.4	54	89
Navicula capitatoradiata	Pennate Diatom	0.001	0.003	3	3	2	5	M	P	68.5	62	78
Navicula cryptocephala	Pennate Diatom	0.001	0.001	3	3	2	7	M	P	56.3	55	80
Navicula tripunctata	Pennate Diatom	0.001	0.003	2	2	2	5	M	P	69.4	76	88
Nitzschia fonticola	Pennate Diatom	0.001	0.000	2	2	2	4	H	P	82.2	49	80
Reimeria sinuata	Pennate Diatom	0.001	0.000	1	2	2	3	M	P	60.9	65	88

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.