MBSS Site Summary for: CORS-124-X-2009
Located on Gravel Run in the Corsica River watershed,
8-digit code: 02130507.
This stream was visited in the spring on 3/11/2009 and again in the summer on 6/15/2009.
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 - 4.3 / 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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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 |
17.9 ° C
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| Dissolved oxygen (DO) |
7.8 mg/L
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| pH (lab) |
7.35 |
| Conductivity |
242 µmho/cm
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Alkalinity
(acid neutralizing capacity)
|
974 µeq/L |
| Dissolved organic carbon (DOC) |
2.1291 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 Green Frog |
| Pickerel Frog |
| Cambarus diogenes |
| Orconectes limosus |
| Japanese Honeysuckle |
| Multiflora Rose |
| Privet |
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Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
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| Genus/Family |
Common Name |
Count |
| Prosimulium |
Black Fly
|
11 |
| Zavrelimyia |
Non-Biting Midges
|
11 |
| Corynoneura |
Non-Biting Midges
|
8 |
| Acerpenna |
Tiny Blue-Winged Olive Mayflies
|
7 |
| Tvetenia |
Non-Biting Midges
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5 |
| Leptophlebiidae |
Pronggilled Mayfly
|
5 |
| Orthocladius |
Non-Biting Midges
|
5 |
| Microtendipes |
Non-Biting Midges
|
4 |
| Labrundinia |
Non-Biting Midges
|
4 |
| Rheotanytarsus |
Non-Biting Midges
|
4 |
| Cheumatopsyche |
Net-Spinning Caddisfly
|
4 |
| Ablabesmyia |
Non-Biting Midge
|
4 |
| Eurylophella |
Mayfly
|
3 |
| Gammarus |
Amphipod
|
3 |
| Paraleptophlebia |
Blue Quill Mayfly
|
2 |
| Triaenodes |
Long-Horned Caddisfly
|
2 |
| Tanytarsus |
Non-Biting Midges
|
2 |
| Thienemanniella |
Non-Biting Midges
|
2 |
| Trissopelopia |
Non-Biting Midges
|
2 |
| Polypedilum |
Non-Biting Midges
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2 |
| Optioservus |
Riffle Beetle
|
1 |
| Ironoquia |
Northern Caddisfly
|
1 |
| Thienemannimyia Group |
Non-Biting Midges
|
1 |
| Micropsectra |
Non-Biting Midges
|
1 |
| Cryptochironomus |
Non-Biting Midges
|
1 |
| Palmacorixa |
|
1 |
| Stilocladius |
Midge
|
1 |
| Psilotreta |
Mortarjoint Casemaker Caddisfly
|
1 |
| Lype |
Net Tube Caddisfly
|
1 |
| Gomphus |
Clubtail Dragonfly
|
1 |
| Calopteryx |
Damselfly
|
1 |
| Heptageniidae |
Flathead Mayfly
|
1 |
| Ptilostomis |
Giant Casemaker Caddisfly
|
1 |
| Tubificidae |
Aquatic Worm
|
1 |
| Anchytarsus |
Beetle
|
1 |
| Simulium |
Black Fly
|
1 |
| Psephenus |
Water Penny
|
1 |
| Limnodrilus |
Worm
|
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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