MBSS Site Summary for: GA-A-050-201-97


Located on TROUT RUN 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 8/27/1997.

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 - 1.5 / 5.0
Benthic IBI Poor - 2.5 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 4,247 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 63.2 %
Forested Land Use 36 %


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

Physical Stream Habitat
Instream Habitat 16/20 (Optimal)
Epifaunal Substrate 7/20 (Marginal)
Velocity/Depth Diversity 10/20 (Marginal)
Pool Quality
Pool Extent = meters 		15/20 (Suboptimal)
Riffle Quality 12/20 (Suboptimal)
Shading 40 %
Embeddedness 35 %


Stream Water Quality:
Water temperature 21.9 ° C
Dissolved oxygen (DO) 8.6 mg/L
pH (lab) 7.07
Conductivity 93 µmho/cm
Alkalinity
(acid neutralizing capacity) 		267.1 µeq/L
Dissolved organic carbon (DOC) 1.8 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
Creek Chub 245
Blacknose Dace 97
White Sucker 90
Largemouth Bass 4
Fathead Minnow 1
River Chub 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
No amphibians and reptiles noted.

Crayfish:
No crayfish noted.

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Eukiefferiella Non-Biting Midges 32
Ephemerella Sulphur Mayfly 29
Prosimulium Black Fly 13
Naididae Aquatic Worm 4
Tubificidae Aquatic Worm 3
Tanytarsus Non-Biting Midges 3
Rheotanytarsus Non-Biting Midges 2
Conchapelopia Non-Biting Midges 2
Cryptochironomus Non-Biting Midges 2
Natarsia Non-Biting Midges 1
Parametriocnemus Non-Biting Midges 1
Cheumatopsyche Net-Spinning Caddisfly 1
Chelifera Aquatic Dance Fly 1
Lumbriculidae Worm 1
Thienemanniella Non-Biting Midges 1
Dubiraphia Riffle Beetle 1
Optioservus Riffle Beetle 1
Baetidae Small Minnow Mayfly 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.