MBSS Site Summary for: GA-A-107-209-97


Located on LITTLE BEAR CR in the Youghiogheny River watershed, 8-digit code: 05020201.
This stream was visited in the spring on 4/9/1997 and again in the summer on 7/21/1997.

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 - 5.0 / 5.0
Benthic IBI Good - 4.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 3,330 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0.1 %
Agricultural Land Use 11.3 %
Forested Land Use 88.2 %


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 12/20 (Suboptimal)
Pool Quality
Pool Extent = meters 		15/20 (Suboptimal)
Riffle Quality 14/20 (Suboptimal)
Shading 95 %
Embeddedness 15 %


Stream Water Quality:
Water temperature 14.9 ° C
Dissolved oxygen (DO) 9.1 mg/L
pH (lab) 6.93
Conductivity 78 µmho/cm
Alkalinity
(acid neutralizing capacity) 		85.8 µeq/L
Dissolved organic carbon (DOC) 0.6 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
Longnose Dace 6
Blacknose Dace 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Allegheny Mountain 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
Baetis Blue-Winged Olive Mayfly 19
Leuctra  Rolled-Winged Stonefly 17
Epeorus Mayfly 17
Cinygmula Dark Red Quill Mayfly 9
Paraleptophlebia Blue Quill Mayfly 6
Amphinemura Spring Stonefly 6
Ephemerella Sulphur Mayfly 6
Diplectrona Net-Spinning Caddisfly 4
Hydropsyche Net-Spinning Caddisfly 3
Micropsectra Non-Biting Midges 3
Oulimnius Riffle Beetle 3
Chloroperlidae Green Stonefly 3
Parametriocnemus Non-Biting Midges 2
Eukiefferiella Non-Biting Midges 2
Dolophilodes Medium Evening Sedge Caddisfly 1
Cheumatopsyche Net-Spinning Caddisfly 1
Peltoperlidae Roachlike Stonefly 1
Dicranota Hairy-Eyed Cranefly 1
Pteronarcys Giant Stonefly 1
Heptagenia 1
Prosimulium Black Fly 1
Isoperla Stripetail Stonefly 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.