MBSS Site Summary for: CR-P-050-106-95


Located on BEAVER RUN UT1 in the Liberty Reservoir watershed, 8-digit code: 02130907.
This stream was visited in the spring on 3/31/1995 and again in the summer on 6/15/1995.

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 - 2.7 / 5.0
Benthic IBI Fair - 3.7 / 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 332 acres Cows standing in a stream at a site with high agricultural land use. Cows survey the sampling procedure at this extreme example of a highly agriculturalized site.
Urban Land Use 0 %
Agricultural Land Use 90 %
Forested Land Use 9.1 %


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 17/20 (Optimal)
Velocity/Depth Diversity 8/20 (Marginal)
Pool Quality
Pool Extent = meters 		8/20 (Marginal)
Riffle Quality 10/20 (Marginal)
Shading 90 %
Embeddedness 10 %


Stream Water Quality:
Water temperature 13.6 ° C
Dissolved oxygen (DO) 9.2 mg/L
pH (lab) 7.35
Conductivity 318 µmho/cm
Alkalinity
(acid neutralizing capacity) 		562 µeq/L
Dissolved organic carbon (DOC) 2 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 112
Creek Chub 22
White Sucker 14
Blue Ridge Sculpin 1
Bluegill 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern Red-Backed Salamander
Northern Green Frog

Crayfish:
No crayfish noted.

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Acerpenna Tiny Blue-Winged Olive Mayflies 37
Amphinemura Spring Stonefly 23
Tanytarsus Non-Biting Midges 15
Parametriocnemus Non-Biting Midges 13
Ephemerella Sulphur Mayfly 12
Prosimulium Black Fly 9
Trissopelopia Non-Biting Midges 4
Polypedilum Non-Biting Midges 4
Neophylax Caddisfly 3
Antocha Crane Fly 2
Clioperla Green-Winged Stonefly 2
Cheumatopsyche Net-Spinning Caddisfly 2
Diplectrona Net-Spinning Caddisfly 2
Hydropsyche Net-Spinning Caddisfly 2
Thienemanniella Non-Biting Midges 2
Tvetenia Non-Biting Midges 2
Procladius Non-Biting Midge 1
Corynoneura Non-Biting Midges 1
Rhyacophila Free-Living 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.