MBSS Site Summary for: SAVA-204-S-2008
Located on CRABTREE RUN in the Savage River watershed,
8-digit code: 02141006.
This stream was visited in the spring on 4/8/2008 and again in the summer on 7/31/2008.
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 - 4.5 / 5.0
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Benthic IBI
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Good - 4.8 / 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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10,846 acres
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An example of a forested stream.
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Urban Land Use
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6 %
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Agricultural Land Use
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9.6 %
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Forested Land Use
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84.1 %
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Stream Water Quality:
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| Water temperature |
17.8 ° C
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| Dissolved oxygen (DO) |
8 mg/L
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| pH (lab) |
7.52 |
| Conductivity |
171 µmho/cm
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Alkalinity
(acid neutralizing capacity)
|
332.3 µeq/L |
| Dissolved organic carbon (DOC) |
0.8335 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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| Allegheny Mountain Dusky Salamander |
| Northern Two-Lined Salamander |
| Seal Salamander |
| Cambarus bartonii bartonii |
| Garlic Mustard |
| Japanese Knotweed |
| Multiflora Rose |
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Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
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| Genus/Family |
Common Name |
Count |
| Leuctridae |
Rolledwinged Stonefly
|
17 |
| Ephemerella |
Sulphur Mayfly
|
14 |
| Epeorus |
Mayfly
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14 |
| Leptophlebiidae |
Pronggilled Mayfly
|
9 |
| Baetis |
Blue-Winged Olive Mayfly
|
7 |
| Oulimnius |
Riffle Beetle
|
5 |
| Polypedilum |
Non-Biting Midges
|
5 |
| Micropsectra |
Non-Biting Midges
|
5 |
| Cinygmula |
Dark Red Quill Mayfly
|
4 |
| Paraleptophlebia |
Blue Quill Mayfly
|
4 |
| Hydropsyche |
Net-Spinning Caddisfly
|
4 |
| Cheumatopsyche |
Net-Spinning Caddisfly
|
3 |
| Leucrocuta |
Mayfly
|
3 |
| Haploperla |
Green Stonefly
|
3 |
| Tvetenia |
Non-Biting Midges
|
3 |
| Eukiefferiella |
Non-Biting Midges
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3 |
| Isoperla |
Stripetail Stonefly
|
2 |
| Ephemerellidae |
Spiny Crawler Mayfly
|
2 |
| Orthocladius |
Non-Biting Midges
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2 |
| Orthocladiinae |
Midge
|
2 |
| Clinocera |
Aquatic Dance Fly
|
2 |
| Prosimulium |
Black Fly
|
2 |
| Diamesa |
Bloodworm
|
2 |
| Taenionema |
|
1 |
| Leuctra |
Rolled-Winged Stonefly
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1 |
| Chloroperlidae |
Green Stonefly
|
1 |
| Neophylax |
Caddisfly
|
1 |
| Maccaffertium |
March Brown And Cahill Mayfly
|
1 |
| Diamesinae |
Non-Biting Midges
|
1 |
| Parametriocnemus |
Non-Biting Midges
|
1 |
| Perlodidae |
Perlodid Stonefly
|
1 |
| Rheocricotopus |
Non-Biting Midges
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1 |
| Tanytarsini |
Non-Biting Midges
|
1 |
| Thienemanniella |
Non-Biting Midges
|
1 |
| Thienemannimyia Group |
Non-Biting Midges
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1 |
| Amphinemura |
Spring Stonefly
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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.
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