MBSS Site Summary for: PATL-102-R-2009
Located on UT Brice Run in the Patapsco River L N Br watershed,
8-digit code: 02130906.
This stream was visited in the spring on 3/16/2009 and again in the summer on 8/5/2009.
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 - 3.7 / 5.0
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Benthic IBI
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Fair - 3.7 / 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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932 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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4.7 %
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Agricultural Land Use
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62.3 %
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Forested Land Use
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32.7 %
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Stream Water Quality:
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| Water temperature |
19.4 ° C
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| Dissolved oxygen (DO) |
8.2 mg/L
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| pH (lab) |
7.17 |
| Conductivity |
222 µmho/cm
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Alkalinity
(acid neutralizing capacity)
|
518 µeq/L |
| Dissolved organic carbon (DOC) |
1.7947 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 |
| Gray Treefrog |
| Northern Green Frog |
| Northern Two-Lined Salamander |
| Japanese Honeysuckle |
| Japanese Stiltgrass |
| Mile-A-Minute |
| Multiflora Rose |
| Oriental Bittersweet |
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Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
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| Genus/Family |
Common Name |
Count |
| Neophylax |
Caddisfly
|
20 |
| Orthocladius |
Non-Biting Midges
|
14 |
| Anchytarsus |
Beetle
|
11 |
| Ephemerellidae |
Spiny Crawler Mayfly
|
7 |
| Pagastia |
|
6 |
| Prosimulium |
Black Fly
|
5 |
| Chimarra |
Fingernet Caddisfly
|
5 |
| Tubificidae |
Aquatic Worm
|
4 |
| Cheumatopsyche |
Net-Spinning Caddisfly
|
4 |
| Thienemannimyia Group |
Non-Biting Midges
|
3 |
| Parametriocnemus |
Non-Biting Midges
|
3 |
| Optioservus |
Riffle Beetle
|
3 |
| Stegopterna |
Black Fly
|
3 |
| Nemouridae |
Nemourid Stonefly
|
2 |
| Zavrelimyia |
Non-Biting Midges
|
2 |
| Pisidiidae |
Pill Clam
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2 |
| Tanytarsus |
Non-Biting Midges
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2 |
| Prostoia |
Spring Stonefly
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2 |
| Limnodrilus |
Worm
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1 |
| Tvetenia |
Non-Biting Midges
|
1 |
| Rheocricotopus |
Non-Biting Midges
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1 |
| Stempellinella |
Non-Biting Midges
|
1 |
| Dytiscidae |
Predaceous Diving Beetle
|
1 |
| Limnephilidae |
Northern Casemaker Caddisfly
|
1 |
| Baetidae |
Small Minnow Mayfly
|
1 |
| Amphinemura |
Spring Stonefly
|
1 |
| Simuliidae |
Black Fly
|
1 |
| Dugesiidae |
Flatworm
|
1 |
| Rhyacophila |
Free-Living Caddisfly
|
1 |
| Maccaffertium |
March Brown And Cahill Mayfly
|
1 |
| Limnephilus |
|
1 |
| Physa |
Air-Breathing Freshwater Snail
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1 |
| Spirosperma |
Aquatic Oligochaete Worm
|
1 |
| Gomphidae |
Clubtail Dragonfly
|
1 |
| Antocha |
Crane Fly
|
1 |
| Tipula |
Crane Fly
|
1 |
| Strophopteryx |
Early Brown 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.
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