MBSS Site Summary for: BRET-201-B-2007
Located on Moll Dyers Run in the Breton Bay watershed,
8-digit code: 02140104.
This stream was visited in the spring on 3/27/2007 and again in the summer on 6/21/2007.
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 - 4.4 / 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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2,084 acres
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An example of a forested stream.
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Urban Land Use
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4.9 %
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Agricultural Land Use
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30 %
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Forested Land Use
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59.6 %
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Stream Water Quality:
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| Water temperature |
20.1 ° C
|
| Dissolved oxygen (DO) |
7.3 mg/L
|
| pH (lab) |
6.73 |
| Conductivity |
89 µmho/cm
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Alkalinity
(acid neutralizing capacity)
|
168.5 µeq/L |
| Dissolved organic carbon (DOC) |
2.2954 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 Box Turtle |
| Eastern Cricket Frog |
| Fowler's Toad |
| Gray Treefrog |
| Northern Green Frog |
| Northern Spring Peeper |
| Northern Two-Lined Salamander |
| Northern Watersnake |
| Spotted 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 |
| Orthocladius |
Non-Biting Midges
|
6 |
| Trissopelopia |
Non-Biting Midges
|
6 |
| Thienemannimyia group |
Non-Biting Midges
|
6 |
| Rheocricotopus |
Non-Biting Midges
|
5 |
| Calopteryx |
Damselfly
|
5 |
| Musculium |
Fingernail Clam
|
4 |
| Prosimulium |
Black Fly
|
4 |
| Eurylophella |
Mayfly
|
4 |
| Cheumatopsyche |
Net-Spinning Caddisfly
|
4 |
| Rheosmittia |
Non-Biting Midges
|
4 |
| Ancyronyx |
Spider Riffle Beetle
|
3 |
| Boyeria |
Spotted Darner Dragonfly
|
3 |
| Acerpenna |
Tiny Blue-Winged Olive Mayflies
|
3 |
| Simulium |
Black Fly
|
3 |
| Haploperla |
Green Stonefly
|
3 |
| Probezzia |
Biting Midges
|
3 |
| Corduliidae |
Emerald Dragonfly
|
3 |
| Stenonema |
Flatheaded Mayfly
|
2 |
| Helocordulia |
|
2 |
| Orthocladiinae |
Midge
|
2 |
| Polypedilum |
Non-Biting Midges
|
2 |
| Lepidostoma |
Little Brown Sedge Caddisfly
|
2 |
| Nanocladius |
Non-Biting Midges
|
2 |
| Zavrelimyia |
Non-Biting Midges
|
2 |
| Limnephilidae |
Northern Casemaker Caddisfly
|
1 |
| Leptophlebia |
Pronggilled Mayfly
|
1 |
| Planorbidae |
Ramshorn Snail
|
1 |
| Optioservus |
Riffle Beetle
|
1 |
| Leuctridae |
Rolledwinged Stonefly
|
1 |
| Capniidae |
Small Winter Stonefly
|
1 |
| Hydropsyche |
Net-Spinning Caddisfly
|
1 |
| Eukiefferiella |
Non-Biting Midges
|
1 |
| Leuctra |
Rolled-Winged Stonefly
|
1 |
| Spirosperma |
Aquatic Oligochaete Worm
|
1 |
| Helichus |
Beetle
|
1 |
| Neophylax |
Caddisfly
|
1 |
| Gomphidae |
Clubtail Dragonfly
|
1 |
| Hagenius |
Clubtail Dragonfly
|
1 |
| Tipula |
Crane Fly
|
1 |
| Tipulidae |
Cranefly
|
1 |
| Cura |
Flatworm
|
1 |
| Caecidotea |
Isopod
|
1 |
| Strophopteryx |
Early Brown Stonefly
|
1 |
| Oemopteryx |
Stonefly
|
1 |
| Tribelos |
Non-Biting Midges
|
1 |
| Stempellinella |
Non-Biting Midges
|
1 |
| Tanytarsus |
Non-Biting Midges
|
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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