MBSS Site Summary for: GA-A-141-213-95


Located on BEAR CR in the Youghiogheny River watershed, 8-digit code: 05020201.
This stream was visited in the spring on 4/24/1995 and again in the summer on 7/27/1995.

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 - 4.5 / 5.0
Benthic IBI Good - 4.8 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 4,358 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0.2 %
Agricultural Land Use 37.8 %
Forested Land Use 60.3 %


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 10/20 (Marginal)
Pool Quality
Pool Extent = meters 		16/20 (Optimal)
Riffle Quality 16/20 (Optimal)
Shading 50 %
Embeddedness 35 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 17.5 ° C
Dissolved oxygen (DO) 8.1 mg/L
pH (lab) 7
Conductivity 59 µmho/cm
Alkalinity
(acid neutralizing capacity) 		157.5 µeq/L
Dissolved organic carbon (DOC) 2 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 29
White Sucker 7
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 18
Ephemerella Sulphur Mayfly 12
Paraleptophlebia Blue Quill Mayfly 10
Chloroperlidae Green Stonefly 7
Isoperla Stripetail Stonefly 7
Promoresia Riffle Beetle 6
Tanytarsus Non-Biting Midges 6
Perlodidae Perlodid Stonefly 4
Optioservus Riffle Beetle 4
Diplectrona Net-Spinning Caddisfly 4
Epeorus Mayfly 4
Leuctra  Rolled-Winged Stonefly 4
Antocha Crane Fly 3
Cinygmula Dark Red Quill Mayfly 3
Hydropsyche Net-Spinning Caddisfly 3
Oulimnius Riffle Beetle 2
Polypedilum Non-Biting Midges 2
Acroneuria Golden Stoneflies 2
Neophylax Caddisfly 1
Lanthus Clubtail Dragonfly 1
Cheumatopsyche Net-Spinning Caddisfly 1
Dicranota Hairy-Eyed Cranefly 1
Stenonema Flatheaded Mayfly 1
Rhyacophila Free-Living Caddisfly 1
Pteronarcys Giant Stonefly 1
Bezzia Biting Midge 1
Diploperla 1
Lopescladius 1
Micrasema 1
Tallaperla Roach-Like Stonefly 1
Polycentropus Tube Maker Caddisfly 1
Conchapelopia Non-Biting Midges 1
Eukiefferiella Non-Biting Midges 1
Parametriocnemus 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.