MBSS Site Summary for: ANTI-113-R-2003
Located on LITTLE ANTIETAM CR in the Antietam Creek watershed,
8-digit code: 02140502.
This stream was visited in the spring on 3/4/2003 and again in the summer on 6/30/2003.
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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Good - 4.0 / 5.0
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Benthic IBI
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Fair - 3.3 / 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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1,436 acres
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An example of a forested stream.
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Urban Land Use
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7 %
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Agricultural Land Use
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16 %
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Forested Land Use
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77 %
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Stream Water Quality:
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| Water temperature |
17.2 ° C
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| Dissolved oxygen (DO) |
8.5 mg/L
|
| pH (lab) |
7.59 |
| Conductivity |
199 µmho/cm
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Alkalinity
(acid neutralizing capacity)
|
505.5 µeq/L |
| Dissolved organic carbon (DOC) |
1.2 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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The following 3 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
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| Common name |
Count |
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Blacknose Dace
|
82 |
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Blue Ridge Sculpin
|
79 |
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Bluegill
|
6 |
Electrofishing to sample fish communities.
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| No amphibians and reptiles noted. |
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Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
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| Genus/Family |
Common Name |
Count |
| Prosimulium |
Black Fly
|
16 |
| Capniidae |
Small Winter Stonefly
|
14 |
| Diplectrona |
Net-Spinning Caddisfly
|
13 |
| Sympotthastia |
Non-Biting Midges
|
9 |
| Amphinemura |
Spring Stonefly
|
8 |
| Leuctridae |
Rolledwinged Stonefly
|
7 |
| Neophylax |
Caddisfly
|
6 |
| Ameletus |
Combmouthed Minnow Mayfly
|
6 |
| Prostoia |
Spring Stonefly
|
5 |
| Rhyacophila |
Free-Living Caddisfly
|
4 |
| Nemouridae |
Nemourid Stonefly
|
4 |
| Orthocladiinae |
Midge
|
3 |
| Perlidae |
Common Stonefly
|
3 |
| Stegopterna |
Black Fly
|
3 |
| Diamesa |
Bloodworm
|
2 |
| Parametriocnemus |
Non-Biting Midges
|
2 |
| Diamesinae |
Non-Biting Midges
|
2 |
| Tanytarsus |
Non-Biting Midges
|
2 |
| Tvetenia |
Non-Biting Midges
|
2 |
| Perlodidae |
Perlodid Stonefly
|
1 |
| Leptophlebiidae |
Pronggilled Mayfly
|
1 |
| Elmidae |
Riffle Beetle
|
1 |
| Optioservus |
Riffle Beetle
|
1 |
| Oulimnius |
Riffle Beetle
|
1 |
| Eukiefferiella |
Non-Biting Midges
|
1 |
| Micropsectra |
Non-Biting Midges
|
1 |
| Orthocladius |
Non-Biting Midges
|
1 |
| Paraphaenocladius |
Non-Biting Midges
|
1 |
| Leuctra |
Rolled-Winged Stonefly
|
1 |
| Enchytraeidae |
Aquatic Worm
|
1 |
| Hexatoma |
Crane Fly
|
1 |
| Hydropsychidae |
Common Netspinner Caddisfly
|
1 |
| Pteronarcys |
Giant Stonefly
|
1 |
| Acroneuria |
Golden Stoneflies
|
1 |
| Dolophilodes |
Medium Evening Sedge Caddisfly
|
1 |
| Hydropsyche |
Net-Spinning Caddisfly
|
1 |
| Parachaetocladius |
Non-Biting Midge
|
1 |
| Brillia |
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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