MBSS Site Summary for: GA-A-039-307-97


Located on SOUTH BR BEAR CR in the Youghiogheny River watershed, 8-digit code: 05020201.
This stream was visited in the spring on 4/10/1997 and again in the summer on 7/28/1997.

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 - 4.3 / 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 10,763 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0.6 %
Agricultural Land Use 34.6 %
Forested Land Use 64.4 %


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 12/20 (Suboptimal)
Pool Quality
Pool Extent = meters 		15/20 (Suboptimal)
Riffle Quality 14/20 (Suboptimal)
Shading 90 %
Embeddedness 15 %


Stream Water Quality:
Water temperature 19 ° C
Dissolved oxygen (DO) 7.2 mg/L
pH (lab) 7.28
Conductivity 140 µmho/cm
Alkalinity
(acid neutralizing capacity) 		280.4 µeq/L
Dissolved organic carbon (DOC) 1.1 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 6 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Brown Trout 38
Longnose Dace 12
Blacknose Dace 6
Creek Chub 1
Rainbow Trout 1
White Sucker 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Dusky Salamander
Seal 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
Ephemerella Sulphur Mayfly 26
Cinygmula Dark Red Quill Mayfly 24
Epeorus Mayfly 18
Haploperla Green Stonefly 14
Simulium Black Fly 11
Baetis Blue-Winged Olive Mayfly 9
Serratella Mayfly 5
Eukiefferiella Non-Biting Midges 4
Leuctra  Rolled-Winged Stonefly 4
Parametriocnemus Non-Biting Midges 4
Amphinemura Spring Stonefly 4
Isoperla Stripetail Stonefly 4
Blepharicera Net-Winged Midges 2
Polypedilum Non-Biting Midges 2
Paraleptophlebia Blue Quill Mayfly 2
Cheumatopsyche Net-Spinning Caddisfly 2
Hydropsyche Net-Spinning Caddisfly 1
Micropsectra Non-Biting Midges 1
Dicranota Hairy-Eyed Cranefly 1
Probezzia Biting Midges 1
Perlidae Common Stonefly 1
Rhyacophila Free-Living Caddisfly 1
Stempellinella Non-Biting Midges 1
Perlodidae Perlodid Stonefly 1
Paratanytarsus Non-Biting Midges 1
Ostrocerca 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.