MBSS Site Summary for: PRUN-101-R-2001

Site Photos

Field photo showing stream conditions at site PRUN-101-R-2001-1 (Opens in a new window) Field photo showing stream conditions at site PRUN-101-R-2001-2 (Opens in a new window)

Located on SOUTH PRONG LOSTLAND RUN UT1 in the Potomac River U N Branch watershed, 8-digit code: 02141005.
This stream was visited in the spring on 4/2/2001 and again in the summer on 6/25/2001.

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 - 2.5 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 504 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 4 %
Agricultural Land Use 35 %
Forested Land Use 49 %


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

Physical Stream Habitat
Instream Habitat 15/20 (Suboptimal)
Epifaunal Substrate 10/20 (Marginal)
Velocity/Depth Diversity 9/20 (Marginal)
Pool Quality
Pool Extent = 48 meters 		10/20 (Marginal)
Riffle Quality
Riffle Extent = 37 meters 		11/20 (Suboptimal)
Shading 80 %
Embeddedness 35 %


Stream Water Quality:
Water temperature 14.9 ° C
Dissolved oxygen (DO) 10.8 mg/L
pH (lab) 7.78
Conductivity 720 µmho/cm
Alkalinity
(acid neutralizing capacity) 		1459 µeq/L
Dissolved organic carbon (DOC) 1 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 Green Frog
Red-Spotted Newt

Crayfish:
Cambaridae
Cambarus

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Prosimulium Black Fly 32
Amphinemura Spring Stonefly 15
Stegopterna Black Fly 10
Zavrelimyia Non-Biting Midges 6
Ostrocerca Stonefly 6
Ameletus Combmouthed Minnow Mayfly 5
Tanytarsus Non-Biting Midges 4
Micropsectra Non-Biting Midges 4
Parametriocnemus Non-Biting Midges 3
Tvetenia Non-Biting Midges 3
Acroneuria Golden Stoneflies 3
Leuctra  Rolled-Winged Stonefly 3
Sweltsa Stonefly 2
Ephemera Mayfly 2
Pseudolimnophila Crane Fly 2
Chironomidae Non-Biting Midge 2
Tanypus Non-Biting Midge 1
Corynoneura Non-Biting Midges 1
Cordulegaster Spiketail Dragonfly 1
Tipula Crane Fly 1
Chrysops Deerfly 1
Cricotopus/Orthocladius Midge 1
Perlidae Common Stonefly 1
Hexatoma Crane Fly 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.