MBSS Site Summary for: STMA-104-A-2011
Located on WAREHOUSE RUN in the St. Mary's River watershed,
8-digit code: 02140103.
This stream was visited in the spring on 3/2/2011 and again in the summer on 6/22/2011.
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 - 5.0 / 5.0
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Benthic IBI
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Good - 4.4 / 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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945 acres
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An example of a forested stream.
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Urban Land Use
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6.4 %
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Agricultural Land Use
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19.2 %
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Forested Land Use
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66.3 %
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Stream Water Quality:
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| pH (lab) |
6.835 |
Alkalinity
(acid neutralizing capacity)
|
276.6 µeq/L |
| Dissolved organic carbon (DOC) |
4.0497 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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| Cambarus diogenes |
| Orconectes limosus |
| Japanese Stiltgrass |
| Multiflora Rose |
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Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
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| Genus/Family |
Common Name |
Count |
| Thienemannimyia Group |
Non-Biting Midges
|
16 |
| Tribelos |
Non-Biting Midges
|
14 |
| Microtendipes |
Non-Biting Midges
|
13 |
| Zavrelimyia |
Non-Biting Midges
|
10 |
| Parametriocnemus |
Non-Biting Midges
|
6 |
| Polycentropus |
Tube Maker Caddisfly
|
5 |
| Ancyronyx |
Spider Riffle Beetle
|
3 |
| Brillia |
Non-Biting Midges
|
3 |
| Thienemanniella |
Non-Biting Midges
|
3 |
| Leptophlebia |
Pronggilled Mayfly
|
3 |
| Paralauterborniella |
|
3 |
| Xylotopus |
Midge
|
3 |
| Calopteryx |
Damselfly
|
2 |
| Dubiraphia |
Riffle Beetle
|
2 |
| Neoporous |
Predaceous Diving Beetle
|
2 |
| Tanytarsus |
Non-Biting Midges
|
2 |
| Nigronia |
Megaloptera (Dark Fishfly)
|
2 |
| Procladius |
Non-Biting Midge
|
2 |
| Apsectrotanypus |
Non-Biting Midges
|
2 |
| Acerpenna |
Tiny Blue-Winged Olive Mayflies
|
2 |
| DIPTERA |
True Fly
|
1 |
| Orthocladiinae |
Midge
|
1 |
| Corynoneura |
Non-Biting Midges
|
1 |
| Dicrotendipes |
Non-Biting Midges
|
1 |
| LIBELLULIDAE |
Skimmer Dragonfly
|
1 |
| Nyctiophylax |
|
1 |
| Isotomurus |
Elongate-Bodied Springtail
|
1 |
| Heterotrissocladius |
European Non-Biting Midge
|
1 |
| Stenochironomus |
European Non-Biting Midge
|
1 |
| Pisidium |
Freshwater Pea (Pill) Clam
|
1 |
| Caecidotea |
Isopod
|
1 |
| Oecetis |
Long-Horned Caddisfly
|
1 |
| Stenacron |
Mayfly
|
1 |
| COENAGRIONIDAE |
Narrowwinged Damselfly
|
1 |
| Lype |
Net Tube Caddisfly
|
1 |
| Cheumatopsyche |
Net-Spinning Caddisfly
|
1 |
| TUBIFICIDAE |
Aquatic Worm
|
1 |
| Bezzia |
Biting Midge
|
1 |
| Phylocentropus |
Caddisfly
|
1 |
| Hagenius |
Clubtail Dragonfly
|
1 |
| Hexatoma |
Crane 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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