MBSS Site Summary for: ZEKI-204-X-2011
Located on MILL DAM RUN in the Zekiah Swamp watershed,
8-digit code: 02140108.
This stream was visited in the spring on 3/14/2011 and again in the summer on 6/27/2011.
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 - 4.7 / 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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3,115 acres
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An example of a forested stream.
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Urban Land Use
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9.3 %
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Agricultural Land Use
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22.3 %
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Forested Land Use
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63.7 %
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Stream Water Quality:
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| pH (lab) |
6.515 |
Alkalinity
(acid neutralizing capacity)
|
96.9 µeq/L |
| Dissolved organic carbon (DOC) |
4.6512 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 Spring Peeper |
| Northern Water Snake |
| Orconectes limosus |
| Procambarus clarkii |
| Japanese Stiltgrass |
| Multiflora Rose |
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Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
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| Genus/Family |
Common Name |
Count |
| Isoperla |
Stripetail Stonefly
|
21 |
| Acerpenna |
Tiny Blue-Winged Olive Mayflies
|
12 |
| Maccaffertium |
March Brown And Cahill Mayfly
|
10 |
| Prosimulium |
Black Fly
|
9 |
| Ephemerella |
Sulphur Mayfly
|
8 |
| Orthocladius |
Non-Biting Midges
|
7 |
| Diplocladius |
Non-Biting Midges
|
4 |
| Cheumatopsyche |
Net-Spinning Caddisfly
|
3 |
| TUBIFICIDAE |
Aquatic Worm
|
2 |
| Thienemannimyia Group |
Non-Biting Midges
|
2 |
| Clioperla |
Green-Winged Stonefly
|
2 |
| Ancyronyx |
Spider Riffle Beetle
|
2 |
| Stegopterna |
Black Fly
|
2 |
| Campeloma |
|
2 |
| Strophopteryx |
Early Brown Stonefly
|
2 |
| Wormaldia |
Fingernet Caddisfly
|
1 |
| Ptilostomis |
Giant Casemaker Caddisfly
|
1 |
| Siphlonurus |
Gray Drake Mayfly
|
1 |
| Pycnopsyche |
Great Autumn Brown Sedge Caddisfly
|
1 |
| Orthocladiinae |
Midge
|
1 |
| Argia |
Narrow-Winged Damselfly
|
1 |
| Lype |
Net Tube Caddisfly
|
1 |
| Leuctra |
Rolled-Winged Stonefly
|
1 |
| Crangonyx |
Amphipod
|
1 |
| Chelifera |
Aquatic Dance Fly
|
1 |
| Siphloplecton |
Cleftfooted Minnow Mayfly
|
1 |
| GOMPHIDAE |
Clubtail Dragonfly
|
1 |
| PERLIDAE |
Common Stonefly
|
1 |
| Tipula |
Crane Fly
|
1 |
| Chrysops |
Deerfly
|
1 |
| Zavrelimyia |
Non-Biting Midges
|
1 |
| LIMNEPHILIDAE |
Northern Casemaker Caddisfly
|
1 |
| Labrundinia |
Non-Biting Midges
|
1 |
| Micropsectra |
Non-Biting Midges
|
1 |
| Ceratopogon |
Biting Midge
|
1 |
| Diplectrona |
Net-Spinning Caddisfly
|
1 |
| Brillia |
Non-Biting Midges
|
1 |
| Parametriocnemus |
Non-Biting Midges
|
1 |
| Paratanytarsus |
Non-Biting Midges
|
1 |
| Rheotanytarsus |
Non-Biting Midges
|
1 |
| Eccoptura |
Yellow Stone 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.