MBSS Site Summary for: YOUG-106-A-2009

Site Photos

Field photo showing stream conditions at site YOUG-106-A-2009-1 (Opens in a new window) Field photo showing stream conditions at site YOUG-106-A-2009-2 (Opens in a new window)

Located on Fork Run in the Youghiogheny River watershed, 8-digit code: 05020201.
This stream was visited in the spring on 3/24/2009 and again in the summer on 6/24/2009.

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 Poor - 1.0 / 5.0
Benthic IBI Poor - 2.8 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 380 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0.4 %
Agricultural Land Use 0.5 %
Forested Land Use 97.7 %


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 6/20 (Marginal)
Velocity/Depth Diversity 10/20 (Marginal)
Pool Quality
Pool Extent = 61 meters 		9/20 (Marginal)
Riffle Quality
Riffle Extent = 40 meters 		12/20 (Suboptimal)
Shading 90 %
Embeddedness 65 %
The embeddedness, a measure of silt on the stream bottom, was 65%. This is relatively high, and may exclude some biota.


Stream Water Quality:
Water temperature 13.4 ° C
Dissolved oxygen (DO) 7.8 mg/L
pH (lab) 4.94
Conductivity 52 µmho/cm
Alkalinity
(acid neutralizing capacity) 		10.9 µeq/L
Dissolved organic carbon (DOC) 0.3295 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 1 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
No Fish Observed 0
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Seal Salamander

Crayfish:
Cambarus carinirostris

Exotic Plants:
No Exotic Plants Observed
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Amphinemura Spring Stonefly 49
Leuctra  Rolled-Winged Stonefly 17
Prosimulium Black Fly 14
Nemouridae Nemourid Stonefly 8
Peltoperla 4
Taenionema 3
Rhyacophila Free-Living Caddisfly 3
Eukiefferiella Non-Biting Midges 3
Lumbriculidae Worm 3
Thienemanniella Non-Biting Midges 2
Paranemoura 2
Lepidostoma Little Brown Sedge Caddisfly 2
Stegopterna Black Fly 2
Neophylax Caddisfly 2
Hexatoma Crane Fly 1
Pycnopsyche Great Autumn Brown Sedge Caddisfly 1
Dicranota Hairy-Eyed Cranefly 1
Diplectrona Net-Spinning Caddisfly 1
Thienemannimyia Group Non-Biting Midges 1
Tvetenia Non-Biting Midges 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.