MBSS Site Summary for: CORS-124-X-2006
Located on Gravel Run in the Corsica River watershed,
8-digit code: 02130507.
This stream was visited in the spring on 4/25/2006 and again in the summer on 7/20/2006.
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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Good - 4.4 / 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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669 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 %
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Agricultural Land Use
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89 %
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Forested Land Use
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9 %
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Stream Water Quality:
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| Water temperature |
20.4 ° C
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| Dissolved oxygen (DO) |
7.7 mg/L
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| pH (lab) |
7.25 |
| Conductivity |
242 µmho/cm
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Alkalinity
(acid neutralizing capacity)
|
838.8 µeq/L |
| Dissolved organic carbon (DOC) |
2.9108 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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| American Bullfrog |
| Gray Treefrog |
| Northern Green Frog |
| Pickerel Frog |
| Japanese Stiltgrass |
| Multiflora Rose |
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Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
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| Genus/Family |
Common Name |
Count |
| Orthocladius |
Non-Biting Midges
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17 |
| Polypedilum |
Non-Biting Midges
|
15 |
| Parametriocnemus |
Non-Biting Midges
|
14 |
| Chironomus |
Non-Biting Midges
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13 |
| Stenonema |
Flatheaded Mayfly
|
12 |
| Tvetenia |
Non-Biting Midges
|
10 |
| Paratendipes |
European Non-Biting Midge
|
9 |
| Labrundinia |
Non-Biting Midges
|
6 |
| Acerpenna |
Tiny Blue-Winged Olive Mayflies
|
5 |
| Orthocladiinae |
Midge
|
5 |
| Tubificidae |
Aquatic Worm
|
4 |
| Calopteryx |
Damselfly
|
3 |
| Pisidiidae |
Pill Clam
|
3 |
| Chaetocladius |
Non-Biting Midges
|
3 |
| Thienemannimyia group |
Non-Biting Midges
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3 |
| Leptophlebiidae |
Pronggilled Mayfly
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2 |
| Optioservus |
Riffle Beetle
|
2 |
| Micropsectra |
Non-Biting Midges
|
2 |
| Stempellinella |
Non-Biting Midges
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2 |
| Naididae |
Aquatic Worm
|
2 |
| Cheumatopsyche |
Net-Spinning Caddisfly
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2 |
| Stictochironomus |
Non-Biting Midge
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2 |
| Brillia |
Non-Biting Midges
|
1 |
| Musculium |
Fingernail Clam
|
1 |
| Clinotanypus |
Non-Biting Midge
|
1 |
| Paramerina |
Non-Biting Midge
|
1 |
| Ceratopogonidae |
Biting Midge
|
1 |
| Tipulidae |
Cranefly
|
1 |
| Dicranota |
Hairy-Eyed Cranefly
|
1 |
| Caecidotea |
Isopod
|
1 |
| Eurylophella |
Mayfly
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1 |
| Dolophilodes |
Medium Evening Sedge Caddisfly
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1 |
| Tanypodinae |
Non-Biting Midges
|
1 |
| Phaenopsectra |
Non-Biting Midges
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1 |
| Cryptochironomus |
Non-Biting Midges
|
1 |
| Ephydridae |
Shore Fly
|
1 |
| Dytiscidae |
Predaceous Diving Beetle
|
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.
