MBSS Site Summary for: YOUG-127-R-2001

Site Photos

Field photo showing stream conditions at site YOUG-127-R-2001-1 (Opens in a new window) Field photo showing stream conditions at site YOUG-127-R-2001-2 (Opens in a new window)

Located on LITTLE BEAR CR in the Youghiogheny River watershed, 8-digit code: 05020201.
This stream was visited in the spring on 4/3/2001 and again in the summer on 6/20/2001.

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 - 4.0 / 5.0
Benthic IBI Fair - 3.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 632 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 8 %
Agricultural Land Use 6 %
Forested Land Use 84 %


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 16/20 (Optimal)
Velocity/Depth Diversity 10/20 (Marginal)
Pool Quality
Pool Extent = 45 meters 		10/20 (Marginal)
Riffle Quality
Riffle Extent = 40 meters 		18/20 (Optimal)
Shading 92 %
Embeddedness 15 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 14.5 ° C
Dissolved oxygen (DO) 7.5 mg/L
pH (lab) 7.28
Conductivity 150 µmho/cm
Alkalinity
(acid neutralizing capacity) 		187.9 µeq/L
Dissolved organic carbon (DOC) 0.7 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:
Fish data is unavailable or no fish observed.

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
Amphinemura Spring Stonefly 33
Leuctridae Rolledwinged Stonefly 18
Parametriocnemus Non-Biting Midges 15
Tvetenia Non-Biting Midges 9
Prosimulium Black Fly 8
Cinygmula Dark Red Quill Mayfly 4
Epeorus Mayfly 4
Diplectrona Net-Spinning Caddisfly 4
Ephemerella Sulphur Mayfly 4
Orthocladiinae Midge 3
Dicranota Hairy-Eyed Cranefly 2
Baetis Blue-Winged Olive Mayfly 2
Hydropsychidae Common Netspinner Caddisfly 2
Hydropsyche Net-Spinning Caddisfly 2
Tanytarsini Non-Biting Midges 2
Thienemanniella Non-Biting Midges 2
Isoperla Stripetail Stonefly 2
Perlodidae Perlodid Stonefly 1
Oulimnius Riffle Beetle 1
Chironominae Non-Biting Midge 1
Brillia Non-Biting Midges 1
Wormaldia Fingernet Caddisfly 1
Chelifera Aquatic Dance Fly 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.