MBSS Site Summary for: GA-A-028-117-97


Located on LITTLE YOUGHIOGHENY R UT3 in the Little Youghiogheny R watershed, 8-digit code: 05020202.
This stream was visited in the spring on 4/2/1997 and again in the summer on 8/5/1997.

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 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 260 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 0.3 %
Agricultural Land Use 62.8 %
Forested Land Use 36.5 %


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

Physical Stream Habitat
Instream Habitat 10/20 (Marginal)
Epifaunal Substrate 9/20 (Marginal)
Velocity/Depth Diversity 7/20 (Marginal)
Pool Quality
Pool Extent = meters 		11/20 (Suboptimal)
Riffle Quality 11/20 (Suboptimal)
Shading 95 %
Embeddedness 25 %


Stream Water Quality:
Water temperature 15.2 ° C
Dissolved oxygen (DO) 8.5 mg/L
pH (lab) 6.79
Conductivity 65 µmho/cm
Alkalinity
(acid neutralizing capacity) 		165.4 µeq/L
Dissolved organic carbon (DOC) 1.3 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 2 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 41
Creek Chub 2
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern Red-Backed Salamander
Northern Dusky Salamander

Crayfish:
Cambarus carinirostris

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Ephemerella Sulphur Mayfly 31
Stenonema Flatheaded Mayfly 16
Neophylax Caddisfly 12
Amphinemura Spring Stonefly 11
Tallaperla Roach-Like Stonefly 5
Diploperla 4
Leuctra  Rolled-Winged Stonefly 3
Hydropsyche Net-Spinning Caddisfly 3
Micropsectra Non-Biting Midges 3
Paraleptophlebia Blue Quill Mayfly 2
Dicranota Hairy-Eyed Cranefly 2
Diplectrona Net-Spinning Caddisfly 2
Clioperla Green-Winged Stonefly 1
Pseudolimnophila Crane Fly 1
Tipula Crane Fly 1
Tanytarsini Non-Biting Midges 1
Thienemannimyia 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.