MBSS Site Summary for: GA-A-062-222-95


Located on MILL RUN in the Youghiogheny River watershed, 8-digit code: 05020201.
This stream was visited in the spring on 4/21/1995 and again in the summer on 8/8/1995.

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 Good - 5.0 / 5.0
Benthic IBI Good - 4.5 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 4,131 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0.6 %
Agricultural Land Use 14.2 %
Forested Land Use 84 %


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

Physical Stream Habitat
Instream Habitat 17/20 (Optimal)
Epifaunal Substrate 16/20 (Optimal)
Velocity/Depth Diversity 15/20 (Suboptimal)
Pool Quality
Pool Extent = meters 		20/20 (Optimal)
Riffle Quality 17/20 (Optimal)
Shading 92 %
Embeddedness 20 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 16.6 ° C
Dissolved oxygen (DO) 8.5 mg/L
pH (lab) 7.22
Conductivity 218 µmho/cm
Alkalinity
(acid neutralizing capacity) 		178.5 µeq/L
Dissolved organic carbon (DOC) 1 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 3 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Creek Chub 6
Blacknose Dace 1
Brown Trout 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

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

Crayfish:
Cambaridae

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 57
Epeorus Mayfly 20
Oulimnius Riffle Beetle 17
Ephemerella Sulphur Mayfly 17
Heptagenia 16
Pteronarcys Giant Stonefly 15
Paraleptophlebia Blue Quill Mayfly 14
Chloroperlidae Green Stonefly 11
Diplectrona Net-Spinning Caddisfly 8
Rhyacophila Free-Living Caddisfly 7
Eukiefferiella Non-Biting Midges 5
Micropsectra Non-Biting Midges 5
Parametriocnemus Non-Biting Midges 4
Nigronia Megaloptera (Dark Fishfly) 4
Blepharicera Net-Winged Midges 3
Perlodidae Perlodid Stonefly 3
Amphinemura Spring Stonefly 3
Hexatoma Crane Fly 3
Dicranota Hairy-Eyed Cranefly 2
Probezzia Biting Midges 2
Neophylax Caddisfly 2
Perlidae Common Stonefly 2
Antocha Crane Fly 2
Micrasema 1
Dolophilodes Medium Evening Sedge Caddisfly 1
Acroneuria Golden Stoneflies 1
Ectopria Water Penny Beetle 1
Tallaperla Roach-Like Stonefly 1
Larsia Non-Biting Midge 1
Cheumatopsyche Net-Spinning Caddisfly 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.