MBSS Site Summary for: YOUG-432-S-2006
Located on Bear Creek in the Youghiogheny River watershed,
8-digit code: 05020201.
This stream was visited in the spring on 4/11/2006 and again in the summer on 6/8/2006.
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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N R |
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Benthic IBI
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Good - 4.3 / 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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9,900 acres
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An example of a forested stream.
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Urban Land Use
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3.6 %
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Agricultural Land Use
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21.8 %
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Forested Land Use
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73.7 %
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Stream Water Quality:
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| pH (lab) |
7.28 |
Alkalinity
(acid neutralizing capacity)
|
156.2 µeq/L |
| Dissolved organic carbon (DOC) |
0.9224 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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| Fish data is unavailable or no fish observed. |
| No amphibians and reptiles noted. |
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Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
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| Genus/Family |
Common Name |
Count |
| Prosimulium |
Black Fly
|
40 |
| Epeorus |
Mayfly
|
18 |
| Leptophlebiidae |
Pronggilled Mayfly
|
10 |
| Isoperla |
Stripetail Stonefly
|
6 |
| Baetis |
Blue-Winged Olive Mayfly
|
6 |
| Diplectrona |
Net-Spinning Caddisfly
|
5 |
| Optioservus |
Riffle Beetle
|
4 |
| Oulimnius |
Riffle Beetle
|
3 |
| Ephemerellidae |
Spiny Crawler Mayfly
|
3 |
| Ephemerella |
Sulphur Mayfly
|
3 |
| Serratella |
Mayfly
|
3 |
| Perlodidae |
Perlodid Stonefly
|
3 |
| Leuctra |
Rolled-Winged Stonefly
|
3 |
| Bezzia |
Biting Midge
|
2 |
| Paraleptophlebia |
Blue Quill Mayfly
|
2 |
| Blepharicera |
Net-Winged Midges
|
2 |
| Rhyacophila |
Free-Living Caddisfly
|
2 |
| Rhithrogena |
|
2 |
| Haploperla |
Green Stonefly
|
2 |
| Pteronarcys |
Giant Stonefly
|
1 |
| Eukiefferiella |
Non-Biting Midges
|
1 |
| Microtendipes |
Non-Biting Midges
|
1 |
| Orthocladius |
Non-Biting Midges
|
1 |
| Parametriocnemus |
Non-Biting Midges
|
1 |
| Perlidae |
Common Stonefly
|
1 |
| Antocha |
Crane Fly
|
1 |
| Cinygmula |
Dark Red Quill Mayfly
|
1 |
| Cheumatopsyche |
Net-Spinning Caddisfly
|
1 |
| Polycentropus |
Tube Maker Caddisfly
|
1 |
| Amphinemura |
Spring 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.
