MBSS Site Summary for: OCTO-101-B-2007
Located on Basin Run UT2 in the Octoraro Creek watershed,
8-digit code: 02120203.
This stream was visited in the spring on 4/24/2007 and again in the summer on 7/2/2007.
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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Poor - 2.3 / 5.0
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Benthic IBI
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Good - 5.0 / 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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277 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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0.5 %
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Agricultural Land Use
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76.9 %
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Forested Land Use
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20.5 %
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Stream Water Quality:
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| Water temperature |
14.7 ° C
|
| Dissolved oxygen (DO) |
8.6 mg/L
|
| pH (lab) |
7.14 |
| Conductivity |
227 µmho/cm
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Alkalinity
(acid neutralizing capacity)
|
704.9 µeq/L |
| Dissolved organic carbon (DOC) |
1.3837 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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| Eastern American Toad |
| Eastern Snapping Turtle |
| Northern Green Frog |
| Northern Two-Lined Salamander |
| Pickerel Frog |
| Cambarus bartonii bartonii |
| Common Reed (Phragmites) |
| Garlic Mustard |
| Japanese Honeysuckle |
| Japanese Stiltgrass |
| Mile-A-Minute |
| Multiflora Rose |
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Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
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| Genus/Family |
Common Name |
Count |
| Ephemerella |
Sulphur Mayfly
|
35 |
| Leuctridae |
Rolledwinged Stonefly
|
18 |
| Amphinemura |
Spring Stonefly
|
10 |
| Hydropsyche |
Net-Spinning Caddisfly
|
8 |
| Simulium |
Black Fly
|
7 |
| Polypedilum |
Non-Biting Midges
|
6 |
| Paraleptophlebia |
Blue Quill Mayfly
|
3 |
| Dolophilodes |
Medium Evening Sedge Caddisfly
|
3 |
| Antocha |
Crane Fly
|
3 |
| Micropsectra |
Non-Biting Midges
|
2 |
| Diamesa |
Bloodworm
|
2 |
| Tanytarsus |
Non-Biting Midges
|
2 |
| Thienemannimyia group |
Non-Biting Midges
|
2 |
| Tvetenia |
Non-Biting Midges
|
2 |
| Zavrelimyia |
Non-Biting Midges
|
2 |
| Lumbriculidae |
Worm
|
2 |
| Eccoptura |
Yellow Stone Stonefly
|
1 |
| Optioservus |
Riffle Beetle
|
1 |
| Rheosmittia |
Non-Biting Midges
|
1 |
| Sympotthastia |
Non-Biting Midges
|
1 |
| Neophylax |
Caddisfly
|
1 |
| Leuctra |
Rolled-Winged Stonefly
|
1 |
| Chelifera |
Aquatic Dance Fly
|
1 |
| Naididae |
Aquatic Worm
|
1 |
| Stenelmis |
Beetle
|
1 |
| Parametriocnemus |
Non-Biting Midges
|
1 |
| Cheumatopsyche |
Net-Spinning Caddisfly
|
1 |
| Diplectrona |
Net-Spinning Caddisfly
|
1 |
| Tipula |
Crane Fly
|
1 |
| Tipulidae |
Cranefly
|
1 |
| Stenonema |
Flatheaded Mayfly
|
1 |
| Eurylophella |
Mayfly
|
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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