MBSS Site Summary for: LOCK-201-X-2007
Located on Hunting Creek in the Lower Choptank watershed,
8-digit code: 02130403.
This stream was visited in the spring on 3/27/2007 and again in the summer on 7/5/2007.
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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2,043 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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0.2 %
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Agricultural Land Use
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82.8 %
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Forested Land Use
|
14.4 %
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Stream Water Quality:
|
| Water temperature |
20.8 ° C
|
| Dissolved oxygen (DO) |
5.8 mg/L
|
| pH (lab) |
6.5 |
| Conductivity |
152 µmho/cm
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Alkalinity
(acid neutralizing capacity)
|
183 µeq/L |
| Dissolved organic carbon (DOC) |
2.6353 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 |
| Cope's Gray Treefrog |
| Northern Green Frog |
| Southern Leopard Frog |
| Orconectes limosus |
| Procambarus acutus acutus |
| Common Reed (Phragmites) |
| Japanese Honeysuckle |
| Multiflora Rose |
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Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
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| Genus/Family |
Common Name |
Count |
| Polypedilum |
Non-Biting Midges
|
19 |
| Rheosmittia |
Non-Biting Midges
|
10 |
| Cheumatopsyche |
Net-Spinning Caddisfly
|
10 |
| Tanytarsus |
Non-Biting Midges
|
10 |
| Micropsectra |
Non-Biting Midges
|
7 |
| Orthocladius |
Non-Biting Midges
|
6 |
| Calopteryx |
Damselfly
|
6 |
| Gammarus |
Amphipod
|
4 |
| Rheocricotopus |
Non-Biting Midges
|
3 |
| Tvetenia |
Non-Biting Midges
|
3 |
| Isoperla |
Stripetail Stonefly
|
3 |
| Argia |
Narrow-Winged Damselfly
|
3 |
| Thienemanniella |
Non-Biting Midges
|
2 |
| Thienemannimyia group |
Non-Biting Midges
|
2 |
| Tanytarsini |
Non-Biting Midges
|
2 |
| Prosimulium |
Black Fly
|
2 |
| Parametriocnemus |
Non-Biting Midges
|
2 |
| Stenonema |
Flatheaded Mayfly
|
2 |
| Clioperla |
Green-Winged Stonefly
|
1 |
| Gordiidae |
Horsehair Worm
|
1 |
| Oecetis |
Long-Horned Caddisfly
|
1 |
| Orthocladiinae |
Midge
|
1 |
| Ablabesmyia |
Non-Biting Midge
|
1 |
| Chironomini |
Non-Biting Midge
|
1 |
| Conchapelopia |
Non-Biting Midges
|
1 |
| Cricotopus |
Non-Biting Midges
|
1 |
| Neophylax |
Caddisfly
|
1 |
| Dubiraphia |
Riffle Beetle
|
1 |
| Acerpenna |
Tiny Blue-Winged Olive Mayflies
|
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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