MBSS Site Summary for: SWAN-251-T-2007
Located on Gasheys Creek in the Swan Creek watershed,
8-digit code: 02130706.
This stream was visited in the spring on 3/12/2007 and again in the summer on 6/15/2007.
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 - 4.0 / 5.0
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Benthic IBI
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Fair - 3.9 / 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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2,593 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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12.6 %
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Agricultural Land Use
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48.1 %
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Forested Land Use
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38.1 %
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Stream Water Quality:
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| Water temperature |
16.6 ° C
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| Dissolved oxygen (DO) |
7.5 mg/L
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| pH (lab) |
7.13 |
| Conductivity |
233 µmho/cm
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Alkalinity
(acid neutralizing capacity)
|
476.1 µeq/L |
| Dissolved organic carbon (DOC) |
1.5779 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 |
| Northern Green Frog |
| Northern Two-Lined Salamander |
| Pickerel Frog |
| Garlic Mustard |
| Japanese Barberry |
| Japanese Honeysuckle |
| Japanese Stiltgrass |
| Mile-A-Minute |
| Multiflora Rose |
| Privet |
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Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
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| Genus/Family |
Common Name |
Count |
| Orthocladius |
Non-Biting Midges
|
21 |
| Prosimulium |
Black Fly
|
12 |
| Cheumatopsyche |
Net-Spinning Caddisfly
|
12 |
| Sympotthastia |
Non-Biting Midges
|
7 |
| Hydrobaenus |
Midge
|
6 |
| Parametriocnemus |
Non-Biting Midges
|
5 |
| Diamesa |
Bloodworm
|
4 |
| Strophopteryx |
Early Brown Stonefly
|
3 |
| Zalutschia |
Non-Biting Midge
|
3 |
| Paracapnia |
Small Winter Stonefly
|
3 |
| Tvetenia |
Non-Biting Midges
|
3 |
| Zavrelimyia |
Non-Biting Midges
|
2 |
| Thienemannimyia group |
Non-Biting Midges
|
2 |
| Paratanytarsus |
Non-Biting Midges
|
2 |
| Hydropsyche |
Net-Spinning Caddisfly
|
2 |
| Diplocladius |
Non-Biting Midges
|
2 |
| Calopteryx |
Damselfly
|
2 |
| Clinocera |
Aquatic Dance Fly
|
2 |
| Enchytraeidae |
Aquatic Worm
|
1 |
| Tubificidae |
Aquatic Worm
|
1 |
| Simulium |
Black Fly
|
1 |
| Stegopterna |
Black Fly
|
1 |
| Crangonyx |
Amphipod
|
1 |
| Ameletus |
Combmouthed Minnow Mayfly
|
1 |
| Antocha |
Crane Fly
|
1 |
| Eukiefferiella |
Non-Biting Midges
|
1 |
| Micropsectra |
Non-Biting Midges
|
1 |
| Microtendipes |
Non-Biting Midges
|
1 |
| Psectrocladius |
Non-Biting Midge
|
1 |
| Pseudorthocladius |
Non-Biting Midges
|
1 |
| Rheosmittia |
Non-Biting Midges
|
1 |
| Stempellinella |
Non-Biting Midges
|
1 |
| Corynoneura |
Non-Biting Midges
|
1 |
| Dicrotendipes |
Non-Biting Midges
|
1 |
| Thienemanniella |
Non-Biting Midges
|
1 |
| Ancyronyx |
Spider Riffle Beetle
|
1 |
| Boyeria |
Spotted Darner Dragonfly
|
1 |
| Diptera |
True Fly
|
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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