MBSS Site Summary for: STMA-101-A-2009
Located on UT St. Mary's River in the St. Mary's River watershed,
8-digit code: 02140103.
This stream was visited in the spring on 4/1/2009 and again in the summer on 7/7/2009.
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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Fair - 3.0 / 5.0
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Benthic IBI
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Fair - 3.6 / 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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72 acres
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An example of a forested stream.
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Urban Land Use
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7.7 %
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Agricultural Land Use
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26.9 %
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Forested Land Use
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58.6 %
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Stream Water Quality:
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| Water temperature |
20.7 ° C
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| Dissolved oxygen (DO) |
5.6 mg/L
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| pH (lab) |
6.93 |
| Conductivity |
145 µmho/cm
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Alkalinity
(acid neutralizing capacity)
|
555.4 µeq/L |
| Dissolved organic carbon (DOC) |
3.5722 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 |
| Fowler's Toad |
| Northern Green Frog |
| Pickerel Frog |
| Southern Leopard Frog |
| Japanese Honeysuckle |
| Japanese Stiltgrass |
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Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
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| Genus/Family |
Common Name |
Count |
| Rheocricotopus |
Non-Biting Midges
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16 |
| Hydropsyche |
Net-Spinning Caddisfly
|
14 |
| Parametriocnemus |
Non-Biting Midges
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11 |
| Stenelmis |
Beetle
|
7 |
| Acerpenna |
Tiny Blue-Winged Olive Mayflies
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6 |
| Hexatoma |
Crane Fly
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5 |
| Ablabesmyia |
Non-Biting Midge
|
5 |
| Gomphidae |
Clubtail Dragonfly
|
3 |
| Orthocladius |
Non-Biting Midges
|
3 |
| Optioservus |
Riffle Beetle
|
3 |
| Eukiefferiella |
Non-Biting Midges
|
3 |
| Hemerodromia |
Tiny Fly
|
2 |
| Haploperla |
Green Stonefly
|
2 |
| Parakiefferiella |
European Non-Biting Midge
|
2 |
| Tabanus |
Biting Horsefly
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2 |
| Bezzia |
Biting Midge
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1 |
| Simulium |
Black Fly
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1 |
| Paratendipes |
European Non-Biting Midge
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1 |
| Girardia |
Freshwater Flatworm
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1 |
| Cheumatopsyche |
Net-Spinning Caddisfly
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1 |
| Paralauterborniella |
|
1 |
| Chironominae |
Non-Biting Midge
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1 |
| Larsia |
Non-Biting Midge
|
1 |
| Paracladopelma |
Non-Biting Midge
|
1 |
| Corynoneura |
Non-Biting Midges
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1 |
| Labrundinia |
Non-Biting Midges
|
1 |
| Paratanytarsus |
Non-Biting Midges
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1 |
| Polypedilum |
Non-Biting Midges
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1 |
| Stempellinella |
Non-Biting Midges
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1 |
| Tanytarsus |
Non-Biting Midges
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1 |
| Thienemannimyia Group |
Non-Biting Midges
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1 |
| Trissopelopia |
Non-Biting Midges
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1 |
| Tvetenia |
Non-Biting Midges
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1 |
| Pisidiidae |
Pill Clam
|
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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