MBSS Site Summary for: PRMO-304-R-2002
Located on LITTLE MONOCACY R in the Potomac River MO Cnty watershed,
8-digit code: 02140202.
This stream was visited in the spring on 3/6/2002 and again in the summer on 6/11/2002.
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 - 3.8 / 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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5,446 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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1 %
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Agricultural Land Use
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75 %
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Forested Land Use
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23 %
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Stream Water Quality:
|
| Water temperature |
20.9 ° C
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| Dissolved oxygen (DO) |
7.1 mg/L
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| pH (lab) |
7.51 |
| Conductivity |
130 µmho/cm
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Alkalinity
(acid neutralizing capacity)
|
636.7 µeq/L |
| Dissolved organic carbon (DOC) |
1.9 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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| Eastern Snapping Turtle |
| Northern Red Salamander |
| Northern Two-Lined Salamander |
| Canada Thistle |
| Japanese Honeysuckle |
| Japanese Stiltgrass |
| Mile-A-Minute |
| Multiflora Rose |
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Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
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| Genus/Family |
Common Name |
Count |
| Centroptilum |
Small Minnow Mayfly
|
10 |
| Naididae |
Aquatic Worm
|
9 |
| Neophylax |
Caddisfly
|
8 |
| Orthocladius |
Non-Biting Midges
|
8 |
| Simulium |
Black Fly
|
6 |
| Stenonema |
Flatheaded Mayfly
|
5 |
| Prosimulium |
Black Fly
|
4 |
| Micropsectra |
Non-Biting Midges
|
4 |
| Cheumatopsyche |
Net-Spinning Caddisfly
|
4 |
| Tanytarsini |
Non-Biting Midges
|
4 |
| Paratanytarsus |
Non-Biting Midges
|
4 |
| Rheosmittia |
Non-Biting Midges
|
4 |
| Corynoneura |
Non-Biting Midges
|
3 |
| Hydrobaenus |
Midge
|
3 |
| Orthocladiinae |
Midge
|
3 |
| Tanypodinae |
Non-Biting Midges
|
3 |
| Dineutus |
Whirlygig Beetle
|
3 |
| Eurylophella |
Mayfly
|
2 |
| Simuliidae |
Black Fly
|
2 |
| Dicrotendipes |
Non-Biting Midges
|
2 |
| Ablabesmyia |
Non-Biting Midge
|
2 |
| Chimarra |
Fingernet Caddisfly
|
2 |
| Parametriocnemus |
Non-Biting Midges
|
2 |
| Stempellinella |
Non-Biting Midges
|
2 |
| Ferrissia |
Small Air-Breathing Freshwater Limpets
|
2 |
| Tanytarsus |
Non-Biting Midges
|
2 |
| Tvetenia |
Non-Biting Midges
|
2 |
| Optioservus |
Riffle Beetle
|
1 |
| Baetidae |
Small Minnow Mayfly
|
1 |
| Enchytraeidae |
Aquatic Worm
|
1 |
| Rhyacophila |
Free-Living Caddisfly
|
1 |
| Oecetis |
Long-Horned Caddisfly
|
1 |
| Caenis |
Mayfly
|
1 |
| Stenacron |
Mayfly
|
1 |
| Dolophilodes |
Medium Evening Sedge Caddisfly
|
1 |
| Cricotopus/Orthocladius |
Midge
|
1 |
| Ameletus |
Combmouthed Minnow Mayfly
|
1 |
| Antocha |
Crane Fly
|
1 |
| Paracapnia |
Small Winter Stonefly
|
1 |
| Oemopteryx |
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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