MBSS Site Summary for: MANO-203-R-2003
Located on MANOKIN BR in the Manokin River watershed,
8-digit code: 02130208.
This stream was visited in the spring on 3/13/2003 and again in the summer on 7/9/2003.
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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Poor - 2.3 / 5.0
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Benthic IBI
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Good - 4.1 / 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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3,221 acres
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An example of a forested stream.
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Urban Land Use
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0 %
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Agricultural Land Use
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33 %
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Forested Land Use
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63 %
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Stream Water Quality:
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| Water temperature |
23.6 ° C
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| Dissolved oxygen (DO) |
6.6 mg/L
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| pH (lab) |
5.8 |
| Conductivity |
188 µmho/cm
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Alkalinity
(acid neutralizing capacity)
|
99.2 µeq/L |
| Dissolved organic carbon (DOC) |
7.8 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 |
| Southern Leopard Frog |
| Japanese Honeysuckle |
| Japanese Stiltgrass |
| Multiflora Rose |
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Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
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| Genus/Family |
Common Name |
Count |
| Parakiefferiella |
European Non-Biting Midge
|
17 |
| Gammarus |
Amphipod
|
14 |
| Orthocladius |
Non-Biting Midges
|
11 |
| Hydroporus |
Water Beetle
|
8 |
| Hydrobaenus |
Midge
|
7 |
| Clinotanypus |
Non-Biting Midge
|
7 |
| Corynoneura |
Non-Biting Midges
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4 |
| Paratanytarsus |
Non-Biting Midges
|
4 |
| Tanypodinae |
Non-Biting Midges
|
3 |
| Thienemannimyia group |
Non-Biting Midges
|
3 |
| Nanocladius |
Non-Biting Midges
|
3 |
| Caenis |
Mayfly
|
3 |
| Orthocladiinae |
Midge
|
3 |
| Argia |
Narrow-Winged Damselfly
|
2 |
| Calopteryx |
Damselfly
|
2 |
| Girardia |
Freshwater Flatworm
|
2 |
| Lumbriculidae |
Worm
|
2 |
| Dubiraphia |
Riffle Beetle
|
2 |
| Microvelia |
Small Water Strider Beetle
|
2 |
| Polycentropus |
Tube Maker Caddisfly
|
2 |
| Paraphaenocladius |
Non-Biting Midges
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2 |
| Tribelos |
Non-Biting Midges
|
1 |
| Pisidiidae |
Pill Clam
|
1 |
| Libellulidae |
Skimmer Dragonfly
|
1 |
| Dineutus |
Whirlygig Beetle
|
1 |
| Prostoma |
Freshwater Nemertean (Ribbon Worm)
|
1 |
| Pycnopsyche |
Great Autumn Brown Sedge Caddisfly
|
1 |
| Scirtidae |
Marsh Beetle
|
1 |
| Synurella |
Amphipod
|
1 |
| Tubificidae |
Aquatic Worm
|
1 |
| Simulium |
Black Fly
|
1 |
| Molannodes |
|
1 |
| Paracladopelma |
Non-Biting Midge
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1 |
| Stictochironomus |
Non-Biting Midge
|
1 |
| Cheumatopsyche |
Net-Spinning Caddisfly
|
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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