MBSS Site Summary for: BROA-312-R-2003
Located on BROAD CR in the Broad Creek watershed,
8-digit code: 02120205.
This stream was visited in the spring on 3/11/2003 and again in the summer on 7/29/2003.
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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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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8,048 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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2 %
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Agricultural Land Use
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77 %
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Forested Land Use
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19 %
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Stream Water Quality:
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| Water temperature |
17.6 ° C
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| Dissolved oxygen (DO) |
8.1 mg/L
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| pH (lab) |
6.83 |
| Conductivity |
179 µmho/cm
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Alkalinity
(acid neutralizing capacity)
|
274 µeq/L |
| Dissolved organic carbon (DOC) |
1.4 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 |
| Japanese Honeysuckle |
| 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 |
| Cheumatopsyche |
Net-Spinning Caddisfly
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18 |
| Psephenus |
Water Penny
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15 |
| Chimarra |
Fingernet Caddisfly
|
14 |
| Orthocladius |
Non-Biting Midges
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13 |
| Antocha |
Crane Fly
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12 |
| Prosimulium |
Black Fly
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8 |
| Stenonema |
Flatheaded Mayfly
|
8 |
| Hydrobaenus |
Midge
|
7 |
| Strophopteryx |
Early Brown Stonefly
|
5 |
| Isonychia |
Slate Drake Mayfly
|
4 |
| Psychomyia |
Trumpet-Net Caddisfly
|
3 |
| Thienemannimyia group |
Non-Biting Midges
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3 |
| Diamesa |
Bloodworm
|
3 |
| Nemouridae |
Nemourid Stonefly
|
3 |
| Enchytraeidae |
Aquatic Worm
|
2 |
| Tubificidae |
Aquatic Worm
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2 |
| Nigronia |
Megaloptera (Dark Fishfly)
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2 |
| Tanytarsini |
Non-Biting Midges
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2 |
| Hydropsyche |
Net-Spinning Caddisfly
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2 |
| Microtendipes |
Non-Biting Midges
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2 |
| Natarsia |
Non-Biting Midges
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1 |
| Parametriocnemus |
Non-Biting Midges
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1 |
| Paraphaenocladius |
Non-Biting Midges
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1 |
| Tvetenia |
Non-Biting Midges
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1 |
| Capniidae |
Small Winter Stonefly
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1 |
| Amphinemura |
Spring Stonefly
|
1 |
| Prostoia |
Spring Stonefly
|
1 |
| Oemopteryx |
Stonefly
|
1 |
| Sialis |
Alderfly
|
1 |
| Tipula |
Crane Fly
|
1 |
| Lype |
Net Tube Caddisfly
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1 |
| Orthocladiinae |
Midge
|
1 |
| Prostoma |
Freshwater Nemertean (Ribbon Worm)
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1 |
| Anthopotamus |
Golden Drake Mayfly
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1 |
| Heptageniidae |
Flathead Mayfly
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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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