MBSS Site Summary for: LIBE-202-X-2011

Site Photos

Field photo showing stream conditions at site LIBE-202-X-2011-1 (Opens in a new window) Field photo showing stream conditions at site LIBE-202-X-2011-2 (Opens in a new window)

Located on LOCUST RUN in the Liberty Reservoir watershed, 8-digit code: 02130907.
This stream was visited in the spring on 3/9/2011 and again in the summer on 6/16/2011.

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 Fair - 3.3 / 5.0
Benthic IBI Good - 4.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 1,128 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 12.5 %
Agricultural Land Use 15.5 %
Forested Land Use 67.4 %


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

Physical Stream Habitat
Instream Habitat 14/20 (Suboptimal)
Epifaunal Substrate 16/20 (Optimal)
Velocity/Depth Diversity 13/20 (Suboptimal)
Pool Quality
Pool Extent = 63 meters 		12/20 (Suboptimal)
Riffle Quality
Riffle Extent = 25 meters 		12/20 (Suboptimal)
Shading 65 %
Embeddedness 40 %


Stream Water Quality:
pH (lab) 7.615
Alkalinity
(acid neutralizing capacity) 		917.4 µeq/L
Dissolved organic carbon (DOC) 6.3595 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 13 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Green Sunfish 105
Bluegill 94
Blue Ridge Sculpin 72
Blacknose Dace 57
Redbreast Sunfish 33
Longnose Dace 25
Bluntnose Minnow 24
Yellow Bullhead 13
Creek Chub 3
Lepomis Hybrid 2
Brown Bullhead 1
Rock Bass 1
White Sucker 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern American Toad
Eastern Box Turtle
Northern Green Frog
Northern Two-Lined Salamander
Northern Water Snake
Wood Frog

Crayfish:
Orconectes virilis

Exotic Plants:
Japanese Barberry
Japanese Honeysuckle
Japanese Stiltgrass
Mile-A-Minute
Multiflora Rose
Oriental Bittersweet
Wineberry
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Prosimulium Black Fly 36
Cheumatopsyche Net-Spinning Caddisfly 20
NEMOURIDAE Nemourid Stonefly 10
Parametriocnemus Non-Biting Midges 10
Chimarra Fingernet Caddisfly 5
Maccaffertium March Brown And Cahill Mayfly 3
Neophylax Caddisfly 3
Nigronia Megaloptera (Dark Fishfly) 3
Isonychia Slate Drake Mayfly 3
Paratanytarsus Non-Biting Midges 2
Sympotthastia Non-Biting Midges 2
Corynoneura Non-Biting Midges 2
Orthocladius Non-Biting Midges 2
Paraphaenocladius Non-Biting Midges 1
Microtendipes Non-Biting Midges 1
Clinocera Aquatic Dance Fly 1
Strophopteryx Early Brown Stonefly 1
Stenochironomus European Non-Biting Midge 1
Stenacron Mayfly 1
Dolophilodes Medium Evening Sedge Caddisfly 1
Dubiraphia Riffle Beetle 1
Prostoia 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.