MBSS Site Summary for: UELK-215-R-2003
Located on MILL CR (ELK) in the Upper Elk River watershed,
8-digit code: 02130603.
This stream was visited in the spring on 4/8/2003 and again in the summer on 8/6/2003.
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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Fair - 3.7 / 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.
(Hint: Screen readers will announce definitions; mouse users can hover over dotted text.)
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Catchment area
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2,736 acres
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An example of a highly channelized urban stream.
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Urban Land Use
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14 %
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Agricultural Land Use
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8 %
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Forested Land Use
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78 %
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Stream Water Quality:
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| Water temperature |
21.4 ° C
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| Dissolved oxygen (DO) |
6.7 mg/L
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| pH (lab) |
6.41 |
| Conductivity |
159 µmho/cm
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Alkalinity
(acid neutralizing capacity)
|
113.7 µeq/L |
| Dissolved organic carbon (DOC) |
5 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 |
| Northern Green Frog |
| Northern Two-Lined Salamander |
| Japanese Honeysuckle |
| Japanese Stiltgrass |
| Multiflora Rose |
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Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
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| Genus/Family |
Common Name |
Count |
| Dicrotendipes |
Non-Biting Midges
|
20 |
| Caenis |
Mayfly
|
10 |
| Tanypodinae |
Non-Biting Midges
|
7 |
| Hydrobaenus |
Midge
|
7 |
| Lumbriculidae |
Worm
|
6 |
| Nigronia |
Megaloptera (Dark Fishfly)
|
5 |
| Oulimnius |
Riffle Beetle
|
4 |
| Caecidotea |
Isopod
|
4 |
| Tubificidae |
Aquatic Worm
|
4 |
| Phaenopsectra |
Non-Biting Midges
|
4 |
| Eurylophella |
Mayfly
|
3 |
| Chironomini |
Non-Biting Midge
|
3 |
| Orthocladius |
Non-Biting Midges
|
3 |
| Stenonema |
Flatheaded Mayfly
|
3 |
| Orthocladiinae |
Midge
|
3 |
| Stenelmis |
Beetle
|
2 |
| Sialis |
Alderfly
|
2 |
| Polypedilum |
Non-Biting Midges
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2 |
| Pseudorthocladius |
Non-Biting Midges
|
2 |
| Rheocricotopus |
Non-Biting Midges
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2 |
| Limnodrilus |
Worm
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2 |
| Eccoptura |
Yellow Stone Stonefly
|
1 |
| Baetidae |
Small Minnow Mayfly
|
1 |
| Centroptilum |
Small Minnow Mayfly
|
1 |
| Boyeria |
Spotted Darner Dragonfly
|
1 |
| Polycentropus |
Tube Maker Caddisfly
|
1 |
| Dineutus |
Whirlygig Beetle
|
1 |
| Rheosmittia |
Non-Biting Midges
|
1 |
| Tanytarsus |
Non-Biting Midges
|
1 |
| Thienemannimyia group |
Non-Biting Midges
|
1 |
| Zavrelimyia |
Non-Biting Midges
|
1 |
| Elmidae |
Riffle Beetle
|
1 |
| Paraphaenocladius |
Non-Biting Midges
|
1 |
| Microtendipes |
Non-Biting Midges
|
1 |
| Nanocladius |
Non-Biting Midges
|
1 |
| Cryptochironomus |
Non-Biting Midges
|
1 |
| Spirosperma |
Aquatic Oligochaete Worm
|
1 |
| Enchytraeidae |
Aquatic Worm
|
1 |
| Naididae |
Aquatic Worm
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1 |
| Ceratopogonidae |
Biting Midge
|
1 |
| Stylogomphus |
Clubtail Dragonfly
|
1 |
| Hexatoma |
Crane Fly
|
1 |
| Pseudolimnophila |
Crane Fly
|
1 |
| Ormosia |
Cranefly
|
1 |
| Psilotreta |
Mortarjoint Casemaker Caddisfly
|
1 |
| Cheumatopsyche |
Net-Spinning Caddisfly
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1 |
| Ablabesmyia |
Non-Biting Midge
|
1 |
| Prostoma |
Freshwater Nemertean (Ribbon Worm)
|
1 |
| Ptilostomis |
Giant Casemaker Caddisfly
|
1 |
| Leuctra |
Rolled-Winged Stonefly
|
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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