MBSS Site Summary for: YOUG-122-A-2010

Site Photos

Field photo showing stream conditions at site YOUG-122-A-2010-1 (Opens in a new window) Field photo showing stream conditions at site YOUG-122-A-2010-2 (Opens in a new window)

Located on Hoyes Run in the Youghiogheny River watershed, 8-digit code: 05020201.
This stream was visited in the spring on 4/1/2010 and again in the summer on 6/17/2010.

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 - 3.5 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 1,397 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 7.5 %
Agricultural Land Use 9.8 %
Forested Land Use 80.2 %


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 17/20 (Optimal)
Velocity/Depth Diversity 10/20 (Marginal)
Pool Quality
Pool Extent = 3 meters 		9/20 (Marginal)
Riffle Quality
Riffle Extent = 75 meters 		16/20 (Optimal)
Shading 90 %
Embeddedness 10 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
pH (lab) 7.89
Alkalinity
(acid neutralizing capacity) 		694.3 µeq/L
Dissolved organic carbon (DOC) 0.8419 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
Brown Trout 14
Rainbow Trout 7
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Slimy Salamander

Crayfish:
Cambarus carinirostris

Exotic Plants:
No Exotic Plants Observed
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Peltoperlidae Roachlike Stonefly 22
Dolophilodes Medium Evening Sedge Caddisfly 16
Baetidae Small Minnow Mayfly 14
Baetis Blue-Winged Olive Mayfly 11
Perlodidae Perlodid Stonefly 6
Leuctra  Rolled-Winged Stonefly 5
Gammarus Amphipod 5
Drunella Blue-Winged Olive Mayfly 4
Heptageniidae Flathead Mayfly 4
Pteronarcys Giant Stonefly 4
Simulium Black Fly 4
Optioservus Riffle Beetle 2
Oulimnius Riffle Beetle 2
Acroneuria Golden Stoneflies 2
Chloroperlidae Green Stonefly 2
Rhyacophila Free-Living Caddisfly 2
Perlidae Common Stonefly 1
Chelifera Aquatic Dance Fly 1
Ceratopogon Biting Midge 1
Dicranota Hairy-Eyed Cranefly 1
Psychodidae Moth Fly 1
Cheumatopsyche Net-Spinning Caddisfly 1
Diplectrona Net-Spinning Caddisfly 1
Tvetenia Non-Biting Midges 1
Ephemerellidae Spiny Crawler Mayfly 1
Amphinemura Spring 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.