MBSS Site Summary for: YOUG-101-C-2000

Site Photos

Field photo showing stream conditions at site YOUG-101-C-2000-01 (Opens in a new window) Field photo showing stream conditions at site YOUG-101-C-2000-02 (Opens in a new window) Field photo showing stream conditions at site YOUG-101-C-2000-03 (Opens in a new window)

Located on STONY-BROOK in the Youghiogheny River watershed, 8-digit code: 05020201.
This stream was visited in the spring on 4/18/2000 and again in the summer on 7/26/2000.

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 - 1.5 / 5.0
Benthic IBI Fair - 3.8 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 1,168 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0.1 %
Agricultural Land Use 43.2 %
Forested Land Use 56.5 %


Stream showing woody debris, logs, and rocky substrate.
An example of woody debris in a stream.

Physical Stream Habitat
Instream Habitat 15/20 (Suboptimal)
Epifaunal Substrate 15/20 (Suboptimal)
Velocity/Depth Diversity 7/20 (Marginal)
Pool Quality
Pool Extent = 45 meters 		9/20 (Marginal)
Riffle Quality
Riffle Extent = 30 meters 		11/20 (Suboptimal)
Shading 90 %
Embeddedness 30 %


Stream Water Quality:
Water temperature 15.3 ° C
Dissolved oxygen (DO) 8 mg/L
pH (lab) 7.4
Conductivity 210 µmho/cm
Alkalinity
(acid neutralizing capacity) 		250.5 µeq/L
Dissolved organic carbon (DOC) 2.3 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 171
Creek Chub 68
Biologists sampling fish communities.
Electrofishing to sample fish communities.

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
Prosimulium Black Fly 17
Parametriocnemus Non-Biting Midges 11
Amphinemura Spring Stonefly 8
Micropsectra Non-Biting Midges 6
Chaetocladius Non-Biting Midges 4
Leuctra  Rolled-Winged Stonefly 4
Ameletus Combmouthed Minnow Mayfly 4
Diphetor Mayfly 4
Heterotrissocladius European Non-Biting Midge 3
Conchapelopia Non-Biting Midges 3
Lepidostoma Little Brown Sedge Caddisfly 2
Trissopelopia Non-Biting Midges 2
Stenonema Flatheaded Mayfly 2
Enchytraeidae Aquatic Worm 2
Diamesa Bloodworm 2
Paraleptophlebia Blue Quill Mayfly 2
Dicranota Hairy-Eyed Cranefly 2
Caecidotea Isopod 1
Eurylophella Mayfly 1
Cricotopus/Orthocladius Midge 1
Cheumatopsyche Net-Spinning Caddisfly 1
Tubificidae Aquatic Worm 1
Simulium Black Fly 1
Acroneuria Golden Stoneflies 1
Pisidiidae Pill Clam 1
Tallaperla Roach-Like Stonefly 1
Paratanytarsus Non-Biting Midges 1
Molophilus 1
Ephemerella Sulphur Mayfly 1
Acentrella Tiny Blue-Winged Olive Mayflies 1
Polycentropus Tube Maker Caddisfly 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.