MBSS Site Summary for: MATT-033-S-2002
Located on MATTAWOMAN CR in the Mattawoman Creek watershed,
8-digit code: 02140111.
This stream was visited in the spring on 3/21/2002 and again in the summer on 7/1/2002.
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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Fair - 3.7 / 5.0
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Benthic IBI
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Good - 4.1 / 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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40,511 acres
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An example of a forested stream.
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Urban Land Use
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17.5 %
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Agricultural Land Use
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18.4 %
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Forested Land Use
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62.4 %
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Stream Water Quality:
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| Water temperature |
20.8 ° C
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| Dissolved oxygen (DO) |
2 mg/L
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Dissolved oxygen levels measured in the stream were very low (2 mg/L).
Many fishes and other aquatic animals cannot tolerate low levels of oxygen in the water.
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| pH (lab) |
6.58 |
| Conductivity |
180 µmho/cm
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Alkalinity
(acid neutralizing capacity)
|
136.2 µeq/L |
| Dissolved organic carbon (DOC) |
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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| American Bullfrog |
| Eastern Snapping Turtle |
| Fowler's Toad |
| Northern Green Frog |
| Pickerel Frog |
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Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
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| Genus/Family |
Common Name |
Count |
| Hydrobaenus |
Midge
|
27 |
| Orthocladius |
Non-Biting Midges
|
14 |
| Lumbriculidae |
Worm
|
10 |
| Spirosperma |
Aquatic Oligochaete Worm
|
9 |
| Perlesta |
|
7 |
| Prosimulium |
Black Fly
|
6 |
| Tubificidae |
Aquatic Worm
|
4 |
| Diptera |
True Fly
|
4 |
| Perlodidae |
Perlodid Stonefly
|
4 |
| Oemopteryx |
Stonefly
|
4 |
| Stenelmis |
Beetle
|
3 |
| Probezzia |
Biting Midges
|
2 |
| Enchytraeidae |
Aquatic Worm
|
2 |
| Heterotrissocladius |
European Non-Biting Midge
|
2 |
| Ormosia |
Cranefly
|
2 |
| Chrysops |
Deerfly
|
2 |
| Caecidotea |
Isopod
|
2 |
| Isoperla |
Stripetail Stonefly
|
2 |
| Orthocladiinae |
Midge
|
2 |
| Chironomini |
Non-Biting Midge
|
1 |
| Eukiefferiella |
Non-Biting Midges
|
1 |
| Natarsia |
Non-Biting Midges
|
1 |
| Parametriocnemus |
Non-Biting Midges
|
1 |
| Tanypodinae |
Non-Biting Midges
|
1 |
| Tanytarsini |
Non-Biting Midges
|
1 |
| Ironoquia |
Northern Caddisfly
|
1 |
| Noctuidae |
Owlet Moth
|
1 |
| Hemerodromia |
Tiny Fly
|
1 |
| Paracapnia |
Small Winter Stonefly
|
1 |
| Taeniopteryx |
Winter Stonefly
|
1 |
| Eurylophella |
Mayfly
|
1 |
| Isotomurus |
Elongate-Bodied Springtail
|
1 |
| Stenochironomus |
European Non-Biting Midge
|
1 |
| Sphaerium |
Fingernail Clam
|
1 |
| Prostoma |
Freshwater Nemertean (Ribbon Worm)
|
1 |
| Menetus |
Air Breathing Freshwater Snail
|
1 |
| Clinocera |
Aquatic Dance Fly
|
1 |
| Ameletus |
Combmouthed Minnow Mayfly
|
1 |
| Perlidae |
Common 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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