MBSS Site Summary for: PRUN-201-X-2016

Site Photos

Field photo showing stream conditions at site PRUN-201-X-2016-MidpointDownstream (Opens in a new window) Field photo showing stream conditions at site PRUN-201-X-2016-MidpointUpstream (Opens in a new window)

Located on Wolfden Run in the Potomac River U N Branch watershed, 8-digit code: 02141005.
This stream was visited in the spring on 4/14/2016 and again in the summer on 7/12/2016.

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 Poor - 1.8 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 3,340 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 1.8 %
Agricultural Land Use 7 %
Forested Land Use 87 %


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

Physical Stream Habitat
Instream Habitat 16/20 (Optimal)
Epifaunal Substrate 18/20 (Optimal)
Velocity/Depth Diversity 14/20 (Suboptimal)
Pool Quality
Pool Extent = 53 meters 		13/20 (Suboptimal)
Riffle Quality
Riffle Extent = 31 meters 		17/20 (Optimal)
Shading 85 %
Embeddedness 5 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
No water quality measurements available for this site.

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:
Fish data is unavailable or no fish observed.

Amphibians and Reptiles:
Eastern Red Spotted Newt

Crayfish:
No crayfish noted.

Exotic Plants:
Garlic Mustard
Japanese Knotweed
Japanese Stiltgrass
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Amphinemura Spring Stonefly 41
Diamesa Bloodworm 39
Diplectrona Net-Spinning Caddisfly 10
Sweltsa Stonefly 6
Chloroperlidae Green Stonefly 3
Polypedilum Non-Biting Midges 3
Stegopterna Black Fly 2
Pteronarcys Giant Stonefly 2
Bezzia Biting Midge 2
Ceratopogonidae Biting Midge 1
Peltoperla 1
Leuctra  Rolled-Winged Stonefly 1
Hexatoma Crane Fly 1
Tipula Crane Fly 1
Ormosia Cranefly 1
Elmidae Riffle Beetle 1
Leuctridae Rolledwinged Stonefly 1
Brillia Non-Biting Midges 1
Chaetocladius Non-Biting Midges 1
Parametriocnemus Non-Biting Midges 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.