MBSS Site Summary for: RKGR-107-R-2002
Located on ROCKY GORGE RES UT 3 in the Rocky Gorge Dam watershed,
8-digit code: 02131107.
This stream was visited in the spring on 3/13/2002 and again in the summer on 6/26/2002.
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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Fair - 3.7 / 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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849 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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14 %
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Agricultural Land Use
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57 %
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Forested Land Use
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28 %
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Stream Water Quality:
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| Water temperature |
21.1 ° C
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| Dissolved oxygen (DO) |
7 mg/L
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| pH (lab) |
7.15 |
| Conductivity |
110 µmho/cm
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Alkalinity
(acid neutralizing capacity)
|
391.9 µeq/L |
| Dissolved organic carbon (DOC) |
3.6 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 |
| Northern Two-Lined Salamander |
| Northern Watersnake |
| Pickerel Frog |
| Wood Frog |
| 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
|
15 |
| Hydropsyche |
Net-Spinning Caddisfly
|
8 |
| Conchapelopia |
Non-Biting Midges
|
7 |
| Parametriocnemus |
Non-Biting Midges
|
6 |
| Cheumatopsyche |
Net-Spinning Caddisfly
|
6 |
| Neophylax |
Caddisfly
|
6 |
| Rheosmittia |
Non-Biting Midges
|
5 |
| Oulimnius |
Riffle Beetle
|
4 |
| Antocha |
Crane Fly
|
4 |
| Pycnopsyche |
Great Autumn Brown Sedge Caddisfly
|
4 |
| Dolophilodes |
Medium Evening Sedge Caddisfly
|
4 |
| Nemouridae |
Nemourid Stonefly
|
3 |
| Lumbriculidae |
Worm
|
3 |
| Optioservus |
Riffle Beetle
|
3 |
| Perlodidae |
Perlodid Stonefly
|
2 |
| Polypedilum |
Non-Biting Midges
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2 |
| Sympotthastia |
Non-Biting Midges
|
2 |
| Corynoneura |
Non-Biting Midges
|
2 |
| Brillia |
Non-Biting Midges
|
2 |
| Glossosoma |
Little Black Caddisfly
|
2 |
| Eurylophella |
Mayfly
|
2 |
| Naididae |
Aquatic Worm
|
2 |
| Anchytarsus |
Beetle
|
2 |
| Prosimulium |
Black Fly
|
1 |
| Gomphidae |
Clubtail Dragonfly
|
1 |
| Ameletus |
Combmouthed Minnow Mayfly
|
1 |
| Dicranota |
Hairy-Eyed Cranefly
|
1 |
| Parakiefferiella |
European Non-Biting Midge
|
1 |
| Nigronia |
Megaloptera (Dark Fishfly)
|
1 |
| Lype |
Net Tube Caddisfly
|
1 |
| Orthocladius |
Non-Biting Midges
|
1 |
| Paratanytarsus |
Non-Biting Midges
|
1 |
| Thienemanniella |
Non-Biting Midges
|
1 |
| Tvetenia |
Non-Biting Midges
|
1 |
| Psephenus |
Water Penny
|
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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