MBSS Site Summary for: GA-A-395-219-97


Located on MILL RUN in the Youghiogheny River watershed, 8-digit code: 05020201.
This stream was visited in the spring on 4/7/1997 and again in the summer on 7/30/1997.

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 Good - 4.0 / 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 6,557 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0.6 %
Agricultural Land Use 17.8 %
Forested Land Use 80.9 %


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

Physical Stream Habitat
Instream Habitat 15/20 (Suboptimal)
Epifaunal Substrate 18/20 (Optimal)
Velocity/Depth Diversity 8/20 (Marginal)
Pool Quality
Pool Extent = meters 		11/20 (Suboptimal)
Riffle Quality 15/20 (Suboptimal)
Shading 85 %
Embeddedness 15 %


Stream Water Quality:
Water temperature 14.9 ° C
Dissolved oxygen (DO) 8.9 mg/L
pH (lab) 7.13
Conductivity 224 µmho/cm
Alkalinity
(acid neutralizing capacity) 		171.4 µeq/L
Dissolved organic carbon (DOC) 0.9 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 6 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Longnose Dace 185
Blacknose Dace 27
Creek Chub 7
Rainbow Trout 3
Green Sunfish 1
White Sucker 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Allegheny Mountain Dusky Salamander
Northern Dusky 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
Baetis Blue-Winged Olive Mayfly 28
Cinygmula Dark Red Quill Mayfly 22
Ephemerella Sulphur Mayfly 18
Parametriocnemus Non-Biting Midges 17
Epeorus Mayfly 15
Amphinemura Spring Stonefly 14
Tvetenia Non-Biting Midges 6
Tanytarsus Non-Biting Midges 5
Prosimulium Black Fly 4
Paraleptophlebia Blue Quill Mayfly 2
Diplectrona Net-Spinning Caddisfly 2
Oulimnius Riffle Beetle 2
Chelifera Aquatic Dance Fly 1
Polypedilum Non-Biting Midges 1
Rhyacophila Free-Living Caddisfly 1
Haploperla Green Stonefly 1
Hydropsyche Net-Spinning Caddisfly 1
Brillia Non-Biting Midges 1
Hexatoma Crane Fly 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.