MBSS Site Summary for: CR-P-152-302-96
Located on NORTH BR PATAPSCO R in the Liberty Reservoir watershed,
8-digit code: 02130907.
This stream was visited in the spring on 3/12/1996 and again in the summer on 8/21/1996.
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
|
N R |
|
Benthic IBI
|
Poor - 2.3 / 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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36,181 acres
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Cows survey the sampling procedure at this extreme example of a highly agriculturalized site.
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Urban Land Use
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3.5 %
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Agricultural Land Use
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73.2 %
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Forested Land Use
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22.8 %
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Stream Water Quality:
|
| pH (lab) |
7.4 |
Alkalinity
(acid neutralizing capacity)
|
500.7 µeq/L |
| Dissolved organic carbon (DOC) |
2 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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|
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Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
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| Genus/Family |
Common Name |
Count |
| Hydrobaenus |
Midge
|
33 |
| Cricotopus/Orthocladius |
Midge
|
22 |
| Leptophlebia |
Pronggilled Mayfly
|
10 |
| Prostoia |
Spring Stonefly
|
5 |
| Conchapelopia |
Non-Biting Midges
|
4 |
| Stictochironomus |
Non-Biting Midge
|
3 |
| Brillia |
Non-Biting Midges
|
2 |
| Sympotthastia |
Non-Biting Midges
|
2 |
| Crangonyx |
Amphipod
|
2 |
| Gomphus |
Clubtail Dragonfly
|
1 |
| Antocha |
Crane Fly
|
1 |
| Stenonema |
Flatheaded Mayfly
|
1 |
| Clioperla |
Green-Winged Stonefly
|
1 |
| Eurylophella |
Mayfly
|
1 |
| Ironoquia |
Northern Caddisfly
|
1 |
| Macronychus |
Riffle Beetle
|
1 |
| Allocapnia |
Small Winter 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.
