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 = —

Attains Class = —

Reason =

Model Result = —

Prob. Class A = —

Prob. Class B = —

Prob. Class C = —

Prob. NA = —

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

Wetted width = 0 m

Depth = 60 cm

Riffle = 20 %

Run = 60 %

Pool = 20 %

Bedrock = 0 %

Boulder = 20 %

Cobble = 50 %

Gravel = 20 %

Sand = 10 %

Silt = 0 %

Clay = 0 %

Viewing Bucket and Land Use

Statutory Class: B

Nutrient Response Indicator Criterion: <24% Nuisance Algae Cover

Nuisance Algae in Survey: 27.9 % cover

Meets Nutrient Response Indicator Criterion: No

Site Information

Name:	French Stream - Station 505	Sampled by:	Biomonitoring Unit
Town:	Exeter	Method:	Periphytometer
Sample Date:	2001-07-12	Sample ID:	SA-505-2001P (74)

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	0.317	0.081	1	2	2	7	N	P	41.2	NA	NA
Cocconeis placentula var. lineata	Pennate Diatom	0.107	0.167	3	2	2	5	N	P	51.5	62	82
Stigeoclonium lubricum	Filamentous Green	0.107	0.011							42.6	18	34
Cocconeis placentula	Pennate Diatom	0.097	0.321	3	2	2	5	N	P	NA	30	82
Rossithidium linearis	Pennate Diatom	0.081	0.036					V	P	32	24	56
Staurosira construens var. venter	Pennate Diatom	0.056	0.024	1	2	2	4	N	V	41.3	35	67
Chroococcus dispersus	Cyanobacteria	0.037	0.010							NA	NA	NA
Fragilaria gracilis	Pennate Diatom	0.032	0.034	1	1	2	2	N	V	30.6	18	22
Gomphonema parvulum	Pennate Diatom	0.027	0.029	4	4	2	5	N	S	42.2	21	NA
Synedra rumpens	Pennate Diatom	0.015	0.015			2	2	N	E	34.3	20	32
Oedogonium	Filamentous Green	0.013	0.021							37.6	27	47
Scenedesmus denticulatus	Colonial Green	0.011	0.001							NA	NA	NA
Eolimna minima	Pennate Diatom	0.010	0.002	4	4	2	5	M	P	57	64	88
Nitzschia supralitorea	Pennate Diatom	0.010	0.002	2	3	2	5	H	P	65.4	62	89
Navicula capitatoradiata	Pennate Diatom	0.007	0.024	3	3	2	5	M	P	68.5	62	78
Navicula cryptocephala	Pennate Diatom	0.007	0.012	3	3	2	7	M	P	56.3	55	80
Encyonema silesiacum	Pennate Diatom	0.007	0.011	3	3	2	7	V	S	46.9	43	69
Sellaphora seminulum	Pennate Diatom	0.007	0.004	4	4	2	5	M	P	51.5	67	73
Nitzschia frustulum	Pennate Diatom	0.006	0.002	3	2	3	5	H	P	50.4	53	88
Eucocconeis laevis	Pennate Diatom	0.005	0.004	1	1	1	1	V	P	29.5	17	18
Reimeria sinuata	Pennate Diatom	0.004	0.003	1	2	2	3	M	P	60.9	65	88
Staurosira construens	Pennate Diatom	0.004	0.006	1	2	2	4	N	V	46.8	30	58
Cosmarium blytii	Desmid	0.003	0.049							NA	18	15
Meridion circulare	Pennate Diatom	0.002	0.009	2	2	2	7	N	E	46.5	64	87
Navicula notha	Pennate Diatom	0.002	0.003					M	P	37.4	20	34
Navicula recens	Pennate Diatom	0.002	0.007		3	3	5	M	P	NA	NA	NA
Nitzschia palea	Pennate Diatom	0.002	0.002	4	5	2	6	H	P	60.3	67	89
Nitzschia palea var. debilis	Pennate Diatom	0.002	0.001		1	1	1	H	P	53.4	47	79
Planothidium lanceolatum	Pennate Diatom	0.002	0.003	3	3	2	5	V	P	72.5	72	91
Encyonema auerswaldii	Pennate Diatom	0.002	0.013					V	S	NA	NA	NA
Gomphonema kobayasii	Pennate Diatom	0.002	0.004					N	S	71.2	50	79
Gomphonema sarcophagus	Pennate Diatom	0.002	0.007		2	2	3	N	S	NA	NA	NA
Staurosira construens var. binodis	Pennate Diatom	0.002	0.004	1	1	2	4	N	V	NA	NA	NA
Ulnaria ulna	Pennate Diatom	0.002	0.059	3	4	2		N	E	34.2	17	21
Navicula trivialis	Pennate Diatom	0.001	0.006	3	3	3	5	M	P	78.6	68	98
Nitzschia linearis	Pennate Diatom	0.001	0.012	2	2	2	4	H	P	54.2	68	87
Cyclotella meneghiniana	Centric Diatom	0.001	0.001	5	4	3	5	N	U	72.6	55	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.