MBSS Site Summary for: PRUN-101-X-2015


Located on WOLFDEN RUN UT in the Potomac River U N Branch watershed, 8-digit code: 02141005.
This stream was visited in the spring on 4/7/2015 and again in the summer on 6/25/2015.

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 - 4.8 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area No data available 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 No data available
Agricultural Land Use No data available
Forested Land Use No data available


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

Physical Stream Habitat
Instream Habitat 9/20 (Marginal)
Epifaunal Substrate 18/20 (Optimal)
Velocity/Depth Diversity 11/20 (Suboptimal)
Pool Quality
Pool Extent = 40 meters 		11/20 (Suboptimal)
Riffle Quality
Riffle Extent = 36 meters 		11/20 (Suboptimal)
Shading 75 %
Embeddedness 5 %


Stream Water Quality:
pH (lab) 7.48
Alkalinity
(acid neutralizing capacity) 		278.7 µeq/L
Dissolved organic carbon (DOC) 1.3975 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:
Fish data is unavailable or no fish observed.

Amphibians and Reptiles:
Northern Slimy Salamander

Crayfish:
Cambarus bartonii bartonii

Exotic Plants:
Japanese Stiltgrass
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Epeorus Mayfly 31
Leuctra  Rolled-Winged Stonefly 15
Amphinemura Spring Stonefly 14
Diplectrona Net-Spinning Caddisfly 9
Leptophlebiidae Pronggilled Mayfly 7
Micropsectra Non-Biting Midges 6
Ameletus Combmouthed Minnow Mayfly 5
Parametriocnemus Non-Biting Midges 4
Prosimulium Black Fly 4
Sweltsa Stonefly 4
Leucrocuta Mayfly 3
Molophilus 2
Ephemerella Sulphur Mayfly 2
Lumbriculidae Worm 1
Peltoperla 1
Ceratopogon Biting Midge 1
Hexatoma Crane Fly 1
Pseudolimnophila Crane Fly 1
Chrysops Deerfly 1
Acroneuria Golden Stoneflies 1
Dicranota Hairy-Eyed Cranefly 1
Lepidostoma Little Brown Sedge Caddisfly 1
Dolophilodes Medium Evening Sedge Caddisfly 1
Neophylax Caddisfly 1
Rheocricotopus Non-Biting Midges 1
Perlodidae Perlodid Stonefly 1
Microtendipes 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.