MBSS Site Summary for: WICO-103-R-2007
Located on Nelsons Run in the Wicomico River watershed,
8-digit code: 02140106.
This stream was visited in the spring on 3/27/2007 and again in the summer on 7/16/2007.
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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Good - 4.7 / 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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511 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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0.9 %
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Agricultural Land Use
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49.8 %
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Forested Land Use
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47.8 %
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Stream Water Quality:
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| Water temperature |
20.6 ° C
|
| Dissolved oxygen (DO) |
1.5 mg/L
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Dissolved oxygen levels measured in the stream were very low (1.5 mg/L).
Many fishes and other aquatic animals cannot tolerate low levels of oxygen in the water.
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| pH (lab) |
6.84 |
| Conductivity |
118 µmho/cm
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Alkalinity
(acid neutralizing capacity)
|
234.1 µeq/L |
| Dissolved organic carbon (DOC) |
5.536 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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| Northern Green Frog |
| Northern Two-Lined Salamander |
| Japanese Honeysuckle |
| Japanese Stiltgrass |
| Wineberry |
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Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
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| Genus/Family |
Common Name |
Count |
| Ephemerella |
Sulphur Mayfly
|
19 |
| Isoperla |
Stripetail Stonefly
|
14 |
| Stenelmis |
Beetle
|
14 |
| Orthocladius |
Non-Biting Midges
|
13 |
| Amphinemura |
Spring Stonefly
|
12 |
| Chloroperlidae |
Green Stonefly
|
8 |
| Leptophlebiidae |
Pronggilled Mayfly
|
4 |
| Triaenodes |
Long-Horned Caddisfly
|
3 |
| Eurylophella |
Mayfly
|
3 |
| Orthocladiinae |
Midge
|
3 |
| Cheumatopsyche |
Net-Spinning Caddisfly
|
3 |
| Nigronia |
Megaloptera (Dark Fishfly)
|
2 |
| Hydrobaenus |
Midge
|
2 |
| Caenis |
Mayfly
|
2 |
| Prosimulium |
Black Fly
|
2 |
| Hyalella |
Amphipod
|
2 |
| Hexatoma |
Crane Fly
|
2 |
| Polypedilum |
Non-Biting Midges
|
2 |
| Potthastia |
Non-Biting Midges
|
1 |
| Rheosmittia |
Non-Biting Midges
|
1 |
| Parametriocnemus |
Non-Biting Midges
|
1 |
| Ancyronyx |
Spider Riffle Beetle
|
1 |
| Crangonyx |
Amphipod
|
1 |
| Psephenus |
Water Penny
|
1 |
| Tipula |
Crane Fly
|
1 |
| Chrysops |
Deerfly
|
1 |
| Spirosperma |
Aquatic Oligochaete Worm
|
1 |
| Simulium |
Black Fly
|
1 |
| Diamesa |
Bloodworm
|
1 |
| Neophylax |
Caddisfly
|
1 |
| Clioperla |
Green-Winged 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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