MBSS Site Summary for: GA-A-179-113-95


Located on MILL RUN UT1 in the Youghiogheny River watershed, 8-digit code: 05020201.
This stream was visited in the spring on 4/27/1995 and again in the summer on 8/3/1995.

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 - 2.0 / 5.0
Benthic IBI Good - 4.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 147 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 0 %
Agricultural Land Use 50.3 %
Forested Land Use 48.2 %


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 3/20 (Poor)
Velocity/Depth Diversity 7/20 (Marginal)
Pool Quality
Pool Extent = meters 		6/20 (Marginal)
Riffle Quality 4/20 (Poor)
Shading 95 %
Embeddedness 0 %


Stream Water Quality:
Water temperature 22 ° C
Dissolved oxygen (DO) 7.1 mg/L
pH (lab) 7.34
Conductivity 121 µmho/cm
Alkalinity
(acid neutralizing capacity) 		464.8 µeq/L
Dissolved organic carbon (DOC) 2 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 1 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Creek Chub 4
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Allegheny Mountain Dusky Salamander
Northern Dusky Salamander
Northern Slimy Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Diphetor Mayfly 26
Parametriocnemus Non-Biting Midges 21
Amphinemura Spring Stonefly 12
Paraleptophlebia Blue Quill Mayfly 10
Sweltsa Stonefly 9
Micropsectra Non-Biting Midges 7
Leuctra  Rolled-Winged Stonefly 5
Epeorus Mayfly 4
Eukiefferiella Non-Biting Midges 4
Diplectrona Net-Spinning Caddisfly 3
Hexatoma Crane Fly 3
Neophylax Caddisfly 2
Ameletus Combmouthed Minnow Mayfly 2
Rhyacophila Free-Living Caddisfly 2
Acroneuria Golden Stoneflies 1
Nigronia Megaloptera (Dark Fishfly) 1
Corynoneura Non-Biting Midges 1
Dixa 1
Ceratopogon Biting Midge 1
Pseudolimnophila Crane Fly 1
Tipula Crane Fly 1
Stenonema Flatheaded Mayfly 1
Polypedilum Non-Biting Midges 1
Tvetenia Non-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.