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MBSS Site Summary for: BRIG-123-R-2014
Site Photos
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Located on TRIADELPHIA RESERVOIR UT in the Brighton Dam watershed,
8-digit code: 02131108.
This stream was visited in the spring on 3/11/2014 and again in the summer on 6/10/2014.
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 | Poor - 2.0 / 5.0 |
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| Benthic IBI | Fair - 3.3 / 5.0 |
Land UseLand use can provide important information for determining stream health. |
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| Catchment area | 710 acres |
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| Urban Land Use | 9.4 % | |
| Agricultural Land Use | 62 % | |
| Forested Land Use | 27.5 % | |
An example of woody debris in a stream. |
Physical Stream Habitat |
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| Instream Habitat | 14/20 (Suboptimal) | |
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| Epifaunal Substrate | 13/20 (Suboptimal) | |
| Velocity/Depth Diversity | 15/20 (Suboptimal) | |
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Pool Quality
Pool Extent = 61 meters |
14/20 (Suboptimal) | |
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Riffle Quality
Riffle Extent = 16 meters |
12/20 (Suboptimal) | |
| Shading | 65 % | |
| Embeddedness | 45 % | |
Stream Water Quality: |
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| pH (lab) | 6.86 |
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Alkalinity (acid neutralizing capacity) |
301.8 µeq/L |
| Dissolved organic carbon (DOC) | 1.3126 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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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.

