MBSS Site Summary for: MILE-201-B-2009

Site Photos

Field photo showing stream conditions at site MILE-201-B-2009-1 (Opens in a new window) Field photo showing stream conditions at site MILE-201-B-2009-2 (Opens in a new window)

Located on UT Glebe Creek in the Miles River watershed, 8-digit code: 02130502.
This stream was visited in the spring on 3/17/2009 and again in the summer on 6/11/2009.

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.
Fish IBI Poor - 2.3 / 5.0
Benthic IBI Fair - 3.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 1,101 acres Cows standing in a stream at a site with high agricultural land use. Cows survey the sampling procedure at this extreme example of a highly agriculturalized site.
Urban Land Use 34.4 %
Agricultural Land Use 48.5 %
Forested Land Use 11.3 %


Stream showing woody debris, logs, and rocky substrate.
An example of woody debris in a stream.

Physical Stream Habitat
Instream Habitat 12/20 (Suboptimal)
Epifaunal Substrate 13/20 (Suboptimal)
Velocity/Depth Diversity 12/20 (Suboptimal)
Pool Quality
Pool Extent = 60 meters 		14/20 (Suboptimal)
Riffle Quality
Riffle Extent = 23 meters 		16/20 (Optimal)
Shading 75 %
Embeddedness 100 %
The embeddedness, a measure of silt on the stream bottom, was 100%. This is very high, and may adversely affect biotic communities.


Stream Water Quality:
Water temperature 19.6 ° C
Dissolved oxygen (DO) 7.7 mg/L
pH (lab) 7.57
Conductivity 270 µmho/cm
Alkalinity
(acid neutralizing capacity) 		1051.4 µeq/L
Dissolved organic carbon (DOC) 5.0075 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. 		Close-up of a mayfly indicator species.

Fish Survey Results:
The following 8 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Eastern Mudminnow 88
Golden Shiner 20
American Eel 17
Green Sunfish 4
Bluegill 2
Largemouth Bass 2
Eastern Mosquitofish 1
Lepomis Hybrid 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Stiltgrass
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Orthocladius Non-Biting Midges 34
Gammarus Amphipod 8
Prosimulium Black Fly 5
Microtendipes Non-Biting Midges 5
Nanocladius Non-Biting Midges 4
Stegopterna Black Fly 4
Stenelmis Beetle 4
Crangonyx Amphipod 3
Orthocladiinae Midge 3
Parametriocnemus Non-Biting Midges 3
Paratanytarsus Non-Biting Midges 3
Tanytarsini Non-Biting Midges 3
Thienemannimyia Group Non-Biting Midges 3
Zavrelimyia Non-Biting Midges 2
Limnephilidae Northern Casemaker Caddisfly 2
Dubiraphia Riffle Beetle 2
Calopteryx Damselfly 2
Ironoquia Northern Caddisfly 1
Tanytarsus Non-Biting Midges 1
Rheocricotopus Non-Biting Midges 1
Stempellinella Non-Biting Midges 1
Gomphus Clubtail Dragonfly 1
Clinotanypus Non-Biting Midge 1
Procladius Non-Biting Midge 1
Corynoneura Non-Biting Midges 1
Neoporus 1
Probezzia Biting Midges 1
Kick net sampling for macroinvertebrates.
Sampling with a kick net.

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.