MBSS Site Summary for: PRUN-101-X-2017

Site Photos

Field photo showing stream conditions at site PRUN-101-X-2017-MidpointDownstream (Opens in a new window) Field photo showing stream conditions at site PRUN-101-X-2017-MidpointUpstream (Opens in a new window)

Located on UT Wolfden Run in the Potomac River U N Branch watershed, 8-digit code: 02141005.
This stream was visited in the spring on 3/23/2017 and again in the summer on 8/16/2017.

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 Good - 4.0 / 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 539 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 3.5 %
Agricultural Land Use 20.4 %
Forested Land Use 75.7 %


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

Physical Stream Habitat
Instream Habitat 12/20 (Suboptimal)
Epifaunal Substrate 17/20 (Optimal)
Velocity/Depth Diversity 9/20 (Marginal)
Pool Quality
Pool Extent = 37 meters 		8/20 (Marginal)
Riffle Quality
Riffle Extent = 49 meters 		14/20 (Suboptimal)
Shading 90 %
Embeddedness 10 %


Stream Water Quality:
pH (lab) 7.32
Alkalinity
(acid neutralizing capacity) 		199.7 µeq/L
Dissolved organic carbon (DOC) 0.9345 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
Brook Trout 10
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Two-Lined Salamander

Crayfish:
Cambarus bartonii bartonii

Exotic Plants:
Japanese Stiltgrass
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
AMPHINEMURA Spring Stonefly 34
EPEORUS Mayfly 33
DIPLECTRONA Net-Spinning Caddisfly 13
MICROPSECTRA Non-Biting Midges 10
LEUCTRIDAE Rolledwinged Stonefly 10
SWELTSA Stonefly 9
PARAMETRIOCNEMUS Non-Biting Midges 3
PELTOPERLA 3
HEXATOMA Crane Fly 3
PERLODIDAE Perlodid Stonefly 2
TALLAPERLA Roach-Like Stonefly 2
HYDROPSYCHE Net-Spinning Caddisfly 2
ORTHOCLADIINAE Midge 1
NEMOURIDAE Nemourid Stonefly 1
MICROTENDIPES Non-Biting Midges 1
CINYGMULA Dark Red Quill Mayfly 1
CHIMARRA Fingernet Caddisfly 1
ACRONEURIA Golden Stoneflies 1
BAETIS Blue-Winged Olive Mayfly 1
PERLIDAE Common Stonefly 1
MALIREKUS 1
MOLOPHILUS 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.