MBSS Site Summary for: YOUG-219-R-2001

Site Photos

Field photo showing stream conditions at site YOUG-219-R-2001-1 (Opens in a new window) Field photo showing stream conditions at site YOUG-219-R-2001-2 (Opens in a new window)

Located on YOUGHIOGHENY R 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 8/9/2001.

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 Poor - 2.5 / 5.0
Benthic IBI Poor - 2.8 / 5.0

Land Use

Land use can provide important information for determining stream health.
(Hint: Screen readers will announce definitions; mouse users can hover over dotted text.)
Catchment area 6,012 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 7 %
Agricultural Land Use 22 %
Forested Land Use 68 %


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 15/20 (Suboptimal)
Velocity/Depth Diversity 10/20 (Marginal)
Pool Quality
Pool Extent = 41 meters 		13/20 (Suboptimal)
Riffle Quality
Riffle Extent = 38 meters 		16/20 (Optimal)
Shading 55 %
Embeddedness 20 %


Stream Water Quality:
Water temperature 20.8 ° C
Dissolved oxygen (DO) 6.2 mg/L
pH (lab) 7
Conductivity 80 µmho/cm
Alkalinity
(acid neutralizing capacity) 		156.4 µeq/L
Dissolved organic carbon (DOC) 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 5 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 159
Creek Chub 96
Rock Bass 13
White Sucker 8
Bluegill 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
No amphibians and reptiles noted.

Crayfish:
No crayfish noted.

Exotic Plants:
Canada Thistle
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Microtendipes Non-Biting Midges 23
Tanytarsini Non-Biting Midges 12
Orthocladiinae Midge 11
Caenis Mayfly 10
Optioservus Riffle Beetle 8
Thienemannimyia group Non-Biting Midges 7
Ephemerella Sulphur Mayfly 6
Stenonema Flatheaded Mayfly 6
Parametriocnemus Non-Biting Midges 6
Stenacron Mayfly 4
Naididae Aquatic Worm 3
Tubificidae Aquatic Worm 2
Stegopterna Black Fly 2
Cricotopus/Orthocladius Midge 2
Chimarra Fingernet Caddisfly 2
Cheumatopsyche Net-Spinning Caddisfly 2
Eukiefferiella Non-Biting Midges 2
Micropsectra Non-Biting Midges 2
Limnodrilus Worm 1
Tvetenia Non-Biting Midges 1
Dubiraphia Riffle Beetle 1
Chironomidae Non-Biting Midge 1
Dicrotendipes Non-Biting Midges 1
Polypedilum Non-Biting Midges 1
Rheosmittia Non-Biting Midges 1
Tanypodinae Non-Biting Midges 1
Atherix 1
Empididae Dance Fly 1
Prosimulium Black 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.