MBSS Site Summary for: PRMT-152-X-2006
Located on Potomac River UT37 in the Potomac River M tidal watershed,
8-digit code: 02140102.
This stream was visited in the spring on 3/30/2006 and again in the summer on 6/12/2006.
Index of Biotic Integrity (IBI) Results:
An Index of Biotic Integrity (IBI) is a scientific tool used to identify and classify stream health. An IBI associates anthropogenic influences on a stream or with biological condition in the stream, and is formulated using data developed from biosurveys.
Details on the development and application of MBSS IBIs are in this document.
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Fish IBI
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Good - 4.7 / 5.0
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Benthic IBI
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Good - 4.1 / 5.0
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Land Use
Land use can provide important information for determining stream health.
(Hint: Screen readers will announce definitions; mouse users can hover over dotted text.)
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Catchment area
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206 acres
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An example of a forested stream.
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Urban Land Use
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3 %
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Agricultural Land Use
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4 %
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Forested Land Use
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92 %
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Stream Water Quality:
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| Water temperature |
15 ° C
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| Dissolved oxygen (DO) |
6.4 mg/L
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| pH (lab) |
6.94 |
| Conductivity |
75 µmho/cm
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Alkalinity
(acid neutralizing capacity)
|
295.8 µeq/L |
| Dissolved organic carbon (DOC) |
1.8367 mg/L |
Biological Stream Condition:
Surveys of the organisms living within a stream can give indications of stream health. Species richness, or the number of different species present, as well as indicator species (species whose presence, absence or abundance can serve as a measure of environmental conditions) are informative for stream health.
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| American Bullfrog |
| Eastern Mud Turtle |
| Gray Treefrog |
| Green Treefrog |
| Northern Green Frog |
| Northern Two-Lined Salamander |
| Pickerel Frog |
| Cambarus bartonii bartonii |
| Cambarus diogenes |
| Procambarus clarkii |
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Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
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| Genus/Family |
Common Name |
Count |
| Polypedilum |
Non-Biting Midges
|
13 |
| Tanytarsus |
Non-Biting Midges
|
13 |
| Phylocentropus |
Caddisfly
|
11 |
| Musculium |
Fingernail Clam
|
11 |
| Thienemannimyia group |
Non-Biting Midges
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8 |
| Rheocricotopus |
Non-Biting Midges
|
8 |
| Rheosmittia |
Non-Biting Midges
|
8 |
| Trissopelopia |
Non-Biting Midges
|
4 |
| Gomphidae |
Clubtail Dragonfly
|
4 |
| Pseudolimnophila |
Crane Fly
|
4 |
| Pycnopsyche |
Great Autumn Brown Sedge Caddisfly
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4 |
| Diplectrona |
Net-Spinning Caddisfly
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3 |
| Eukiefferiella |
Non-Biting Midges
|
3 |
| Parametriocnemus |
Non-Biting Midges
|
3 |
| Calopteryx |
Damselfly
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3 |
| Stenonema |
Flatheaded Mayfly
|
3 |
| Tribelos |
Non-Biting Midges
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3 |
| Lumbriculidae |
Worm
|
3 |
| Cricotopus |
Non-Biting Midges
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2 |
| Leptophlebiidae |
Pronggilled Mayfly
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2 |
| Paraphaenocladius |
Non-Biting Midges
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2 |
| Natarsia |
Non-Biting Midges
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1 |
| Clinotanypus |
Non-Biting Midge
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1 |
| Corynoneura |
Non-Biting Midges
|
1 |
| Nigronia |
Megaloptera (Dark Fishfly)
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1 |
| Spirosperma |
Aquatic Oligochaete Worm
|
1 |
| Probezzia |
Biting Midges
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1 |
| Heteroplectron |
Caddisfly
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1 |
| Ephydridae |
Shore Fly
|
1 |
| Cordulegaster |
Spiketail Dragonfly
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1 |
| Acerpenna |
Tiny Blue-Winged Olive Mayflies
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1 |
| Eccoptura |
Yellow Stone Stonefly
|
1 |
Sampling with a kick net.
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Information disclaimer: The information and data on this page is for guidance and general planning purposes only. It should not be used to make decisions on specific matters.
