Maine Department of Environmental Protection
Biological
Monitoring Program
Stream Algae Report
Site Information
| Name: | Little Heald Brook - Station 575 | Sampled by: | Manomet |
| Town: | Caratunk | Method: | Rock Scrapings 1 Inch Circles |
| Sample Date: | 2001-07-19 | Sample ID: | SA-575-2001R (109) |
| Location: | (Manomet) Caratunk - Above 400m - Upstream Control Site |
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 = 0.99 |
| Prob. Class B = 0.01 |
| 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
| Wetted width = 2 m |
| Depth = 10 cm |
| Water velocity = 20 cm/s |
| Riffle = 70 % |
| Run = 15 % |
| Pool = 15 % |
| Bedrock = 0 % |
| Boulder = 10 % |
| Cobble = 60 % |
| Gravel = 20 % |
| Sand = 10 % |
| Silt = 0 % |
| Clay = 0 % |
Viewing Bucket and Land Use
Site Information
| Name: | Little Heald Brook - Station 575 | Sampled by: | Manomet |
| Town: | Caratunk | Method: | Rock Scrapings 1 Inch Circles |
| Sample Date: | 2001-07-19 | Sample ID: | SA-575-2001R (109) |
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 | 0.284 | 0.080 | 1 | 2 | 2 | 7 | N | P | 41.2 | NA | NA |
| Stigonema informe | Filamentous Cyanobacteria | 0.209 | 0.071 | NA | NA | NA | ||||||
| Achnanthidium microcephalum | Pennate Diatom | 0.137 | 0.206 | N | P | NA | NA | NA | ||||
| Phormidium formosum | Filamentous Cyanobacteria | 0.118 | 0.006 | 42.6 | 23 | NA | ||||||
| Fragilaria gracilis | Pennate Diatom | 0.053 | 0.037 | 1 | 1 | 2 | 2 | N | V | 30.6 | 18 | 22 |
| Gomphonema bohemicum | Pennate Diatom | 0.046 | 0.142 | 1 | 1 | N | S | NA | NA | NA | ||
| Eunotia minor | Pennate Diatom | 0.031 | 0.198 | 1 | 1 | V | E | 42.4 | 19 | 34 | ||
| Oedogonium | Filamentous Green | 0.018 | 0.030 | 37.6 | 27 | 47 | ||||||
| Audouinella | Red Algae | 0.016 | 0.007 | 47.5 | 54 | 69 | ||||||
| Fragilaria vaucheriae var. capitellata | Pennate Diatom | 0.011 | 0.008 | 3 | 2 | 5 | N | V | 50.3 | 22 | NA | |
| Tabellaria flocculosa | Pennate Diatom | 0.010 | 0.093 | 1 | 2 | 1 | 3 | N | U | 18.8 | 17 | 32 |
| Eunotia mucophila | Pennate Diatom | 0.009 | 0.036 | 2 | 1 | 2 | 2 | V | E | NA | NA | NA |
| Eunotia tenella | Pennate Diatom | 0.007 | 0.012 | 1 | 1 | 1 | 1 | V | E | NA | NA | 2 |
| Eucocconeis laevis | Pennate Diatom | 0.006 | 0.006 | 1 | 1 | 1 | 1 | V | P | 29.5 | 17 | 18 |
| Microcostatus cf. andinus | Pennate Diatom | 0.006 | 0.006 | M | P | NA | NA | NA | ||||
| Sellaphora rectangularis | Pennate Diatom | 0.006 | 0.011 | 3 | 3 | 2 | 4 | M | P | NA | NA | NA |
| Brachysira microcephala | Pennate Diatom | 0.006 | 0.005 | 2 | 1 | 2 | 2 | M | P | 18 | 12 | 18 |
| Rossithidium linearis | Pennate Diatom | 0.005 | 0.002 | V | P | 32 | 24 | 56 | ||||
| Eunotia bilunaris | Pennate Diatom | 0.004 | 0.017 | 2 | 2 | 2 | 7 | V | E | 37.6 | 17 | 28 |
| Stauroneis cf. aueri | Pennate Diatom | 0.003 | M | P | NA | NA | NA | |||||
| Brachysira brebissonii | Pennate Diatom | 0.002 | 0.002 | 2 | 1 | 1 | 1 | M | P | 16.3 | 8 | 4 |
| Encyonopsis cesatii | Pennate Diatom | 0.002 | 0.004 | 1 | 1 | 1 | 1 | V | S | 38 | NA | NA |
| Encyonema minutum | Pennate Diatom | 0.002 | 0.003 | 2 | V | S | 50.2 | 21 | NA | |||
| Synedra rumpens | Pennate Diatom | 0.002 | 0.002 | 2 | 2 | N | E | 34.3 | 20 | 32 | ||
| Eolimna minima | Pennate Diatom | 0.002 | 0.001 | 4 | 4 | 2 | 5 | M | P | 57 | 64 | 88 |
| Penium spinospermum | Desmid | 0.002 | 0.008 | NA | NA | NA | ||||||
| Psammothidium chlidanos | Pennate Diatom | 0.002 | 0.001 | V | P | 32.5 | 16 | 14 | ||||
| Achnanthes cf. pusilla | Pennate Diatom | 0.002 | 0.003 | 1 | 1 | 2 | 1 | V | P | NA | NA | NA |
| Platessa oblongella | Pennate Diatom | 0.001 | 0.001 | 1 | 1 | 2 | 1 | V | P | 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. |