Maine Department of Environmental Protection
Biological Monitoring Program
Stream Algae Report
Site Information
Model Results and Variables
Blue = this sample. Boxplots = range of all samples. Grey shaded areas = range of reference sites
Additional Metrics
Stream Characteristics and Water Chemistry
Site Information
Taxa List (See key at end of report)
| Name | Group | RA | RB | Oxy | Sap | Sal | Tr | Mot | GF | Tol | TN | TP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Homoeothrix janthina | filamentous cyanobacteria | 0.351 | 0.001 | 43 | 19 | 21 | ||||||
| Gongrosira | filamentous green | 0.164 | 0.168 | 37.3 | 37 | NA | ||||||
| Achnanthidium minutissimum | pennate diatom | 0.128 | 0.003 | 1 | 2 | 2 | 7 | N | P | 41.2 | NA | NA |
| Achnanthidium rivulare | pennate diatom | 0.106 | 0.005 | N | P | 49.9 | 39 | 49 | ||||
| Tabellaria flocculosa var. linearis | pennate diatom | 0.046 | 0.046 | N | U | 18.8 | 25 | 33 | ||||
| Tabellaria flocculosa | pennate diatom | 0.043 | 0.020 | 1 | 2 | 1 | 3 | N | U | 18.8 | 17 | 32 |
| Oedogonium | filamentous green | 0.032 | 0.662 | 37.6 | 27 | 47 | ||||||
| Fragilaria tenera | pennate diatom | 0.025 | 0.004 | 1 | 1 | 1 | 2 | N | V | 31.9 | 27 | 41 |
| Eunotia pectinalis var. undulata | pennate diatom | 0.024 | 0.063 | 1 | 2 | 1 | 1 | V | E | 24.3 | 22 | 35 |
| Dinobryon bavaricum | chrysophyte | 0.018 | 0.008 | NA | NA | NA | ||||||
| Asterionella formosa | pennate diatom | 0.010 | 0.003 | 2 | 2 | 2 | 4 | N | U | NA | 26 | NA |
| Synedra rumpens | pennate diatom | 0.009 | 0.001 | 2 | 2 | N | E | 34.3 | 20 | 32 | ||
| Staurodesmus incus | desmid | 0.006 | 0.000 | NA | NA | NA | ||||||
| Eucocconeis laevis | pennate diatom | 0.003 | 0.000 | 1 | 1 | 1 | 1 | V | P | 29.5 | 17 | 18 |
| Fragilaria crotonensis | pennate diatom | 0.003 | 0.001 | 2 | 2 | 2 | 3 | N | V | NA | 53 | 64 |
| Discostella stelligera | centric diatom | 0.003 | 0.001 | 2 | N | U | NA | 51 | NA | |||
| Psammothidium subatomoides | pennate diatom | 0.003 | 0.000 | 1 | 1 | 1 | 2 | V | P | 42.4 | 20 | 35 |
| Fragilaria capucina var. gracilis | pennate diatom | 0.003 | 0.000 | 1 | 1 | 2 | 2 | N | V | 30.6 | 18 | 22 |
| Calothrix | filamentous cyanobacteria | 0.002 | 0.000 | 29.1 | 9 | 15 | ||||||
| Synedra sp. 8 NAWQA MORALES | pennate diatom | 0.001 | 0.003 | N | E | NA | 33 | 48 | ||||
| Cyclotella bodanica var. lemanica | centric diatom | 0.001 | 0.004 | 1 | 1 | 1 | 1 | N | U | 14.3 | 21 | 20 |
| Discostella pseudostelligera | centric diatom | 0.001 | 0.000 | 3 | 3 | 2 | 5 | N | U | 28.6 | 38 | 86 |
| Eunotia incisa | pennate diatom | 0.001 | 0.000 | 1 | 1 | 1 | 1 | V | E | 24.8 | 18 | 35 |
| Navicula radiosa | pennate diatom | 0.001 | 0.001 | 2 | 2 | 2 | 4 | M | P | 41.8 | 34 | 73 |
| Nitzschia subtilis | pennate diatom | 0.001 | 0.002 | 2 | H | P | NA | 29 | 61 | |||
| Reimeria sinuata | pennate diatom | 0.001 | 0.000 | 1 | 2 | 2 | 3 | M | P | 60.9 | 65 | 88 |
| Kobayasiella subtilissima | pennate diatom | 0.001 | 0.000 | 1 | 1 | 1 | 1 | M | P | NA | NA | NA |
| Fragilaria sepes | pennate diatom | 0.001 | 0.000 | 1 | 1 | 1 | 2 | N | V | 32.1 | 18 | 39 |
| Gomphonema pseudoaugur | pennate diatom | 0.001 | 0.001 | 3 | 2 | 5 | N | S | NA | 47 | 75 | |
| Gomphonema minusculum | pennate diatom | 0.001 | 0.000 | N | S | NA | 38 | 51 | ||||
| Encyonema silesiacum | pennate diatom | 0.001 | 0.000 | 3 | 3 | 2 | 7 | V | S | 46.9 | 43 | 69 |
| Achnanthidium deflexum | pennate diatom | 0.001 | 0.000 | 1 | 2 | 3 | N | P | 43.5 | 40 | 52 | |
| Geissleria acceptata | pennate diatom | 0.001 | 0.000 | 1 | 2 | 1 | M | P | 50.8 | 80 | 89 | |
| Gomphonema angustatum | pennate diatom | 0.001 | 0.000 | 1 | 1 | 2 | 1 | N | S | 58 | 50 | 84 |
| Aulacoseira ambigua | centric diatom | 0.001 | 0.000 | 3 | 2 | 2 | 5 | N | U | 34.5 | 25 | 56 |
| Pseudostaurosira trainorii | pennate diatom | 0.001 | 0.000 | 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. |