MBSS Site Summary for: ZEKI-202-A-2008
Located on MILL DAM RUN in the Zekiah Swamp watershed,
8-digit code: 02140108.
This stream was visited in the spring on 4/23/2008 and again in the summer on 6/12/2008.
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 - 4.7 / 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.
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Catchment area
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3,125 acres
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An example of a forested stream.
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Urban Land Use
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5 %
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Agricultural Land Use
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34.8 %
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Forested Land Use
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58.5 %
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Stream Water Quality:
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| Water temperature |
19.6 ° C
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| Dissolved oxygen (DO) |
8.6 mg/L
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| pH (lab) |
6.56 |
| Conductivity |
89 µmho/cm
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Alkalinity
(acid neutralizing capacity)
|
139.5 µeq/L |
| Dissolved organic carbon (DOC) |
7.7177 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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| Gray Treefrog |
| Northern Green Frog |
| Northern Two-Lined Salamander |
| Pickerel Frog |
| Cambarus diogenes |
| Orconectes limosus |
| Procambarus clarkii |
| 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 |
| Tanytarsus |
Non-Biting Midges
|
26 |
| Centroptilum |
Small Minnow Mayfly
|
15 |
| Orthocladius |
Non-Biting Midges
|
9 |
| Acerpenna |
Tiny Blue-Winged Olive Mayflies
|
7 |
| Plauditus |
Tiny Blue-Winged Olive Mayflies
|
6 |
| Thienemannimyia Group |
Non-Biting Midges
|
5 |
| Amphipoda |
Scud
|
4 |
| Paramerina |
Non-Biting Midge
|
4 |
| Caecidotea |
Isopod
|
3 |
| Physa |
Air-Breathing Freshwater Snail
|
3 |
| Tubificidae |
Aquatic Worm
|
3 |
| Zavrelimyia |
Non-Biting Midges
|
3 |
| Polypedilum |
Non-Biting Midges
|
3 |
| Ablabesmyia |
Non-Biting Midge
|
3 |
| Potthastia |
Non-Biting Midges
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2 |
| Orthocladiinae |
Midge
|
2 |
| Gomphidae |
Clubtail Dragonfly
|
2 |
| Diptera |
True Fly
|
2 |
| Corixidae |
Water Boatman
|
1 |
| Limnodrilus |
Worm
|
1 |
| Perlidae |
Common Stonefly
|
1 |
| Tipulidae |
Cranefly
|
1 |
| Calopteryx |
Damselfly
|
1 |
| Corduliidae |
Emerald Dragonfly
|
1 |
| Ceratopogon |
Biting Midge
|
1 |
| Simulium |
Black Fly
|
1 |
| Leptoceridae |
Longhorned Casemaker Caddisfly
|
1 |
| Maccaffertium |
March Brown And Cahill Mayfly
|
1 |
| Eurylophella |
Mayfly
|
1 |
| Chironomus |
Non-Biting Midges
|
1 |
| Cricotopus |
Non-Biting Midges
|
1 |
| Microtendipes |
Non-Biting Midges
|
1 |
| Ancyronyx |
Spider Riffle Beetle
|
1 |
| Ephemerella |
Sulphur Mayfly
|
1 |
| Pisidiidae |
Pill Clam
|
1 |
| Dytiscidae |
Predaceous Diving Beetle
|
1 |
| Dubiraphia |
Riffle Beetle
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1 |
| Oulimnius |
Riffle Beetle
|
1 |
| Tanytarsini |
Non-Biting Midges
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1 |
| Tribelos |
Non-Biting Midges
|
1 |
| Clinotanypus |
Non-Biting Midge
|
1 |
| Paraphaenocladius |
Non-Biting Midges
|
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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