MBSS Site Summary for: DOUB-218-R-2002

Site Photos

Field photo showing stream conditions at site DOUB-218-R-2002-1 (Opens in a new window) Field photo showing stream conditions at site DOUB-218-R-2002-2 (Opens in a new window)

Located on BIG SILVER RUN in the Double Pipe Creek watershed, 8-digit code: 02140304.
This stream was visited in the spring on 3/5/2002 and again in the summer on 7/9/2002.

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 - 2.8 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 3,473 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 1 %
Agricultural Land Use 67 %
Forested Land Use 32 %


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

Physical Stream Habitat
Instream Habitat 11/20 (Suboptimal)
Epifaunal Substrate 11/20 (Suboptimal)
Velocity/Depth Diversity 9/20 (Marginal)
Pool Quality
Pool Extent = 57 meters 		11/20 (Suboptimal)
Riffle Quality
Riffle Extent = 18 meters 		9/20 (Marginal)
Shading 95 %
Embeddedness 35 %


Stream Water Quality:
Water temperature 19.8 ° C
Dissolved oxygen (DO) 6.4 mg/L
pH (lab) 7.63
Conductivity 340 µmho/cm
Alkalinity
(acid neutralizing capacity) 		1425 µeq/L
Dissolved organic carbon (DOC) 1.7 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 10 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 499
Blue Ridge Sculpin 262
Fantail Darter 41
Rosyside Dace 33
Potomac Sculpin 17
White Sucker 12
Creek Chub 9
Common Shiner 4
Eastern Silvery Minnow 2
Bluntnose Minnow 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Eastern Box Turtle
Northern Green Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Japanese Stiltgrass
Mile-A-Minute
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Parametriocnemus Non-Biting Midges 28
Rheosmittia Non-Biting Midges 21
Micropsectra Non-Biting Midges 13
Chimarra Fingernet Caddisfly 9
Tvetenia Non-Biting Midges 8
Microtendipes Non-Biting Midges 6
Prosimulium Black Fly 5
Strophopteryx Early Brown Stonefly 4
Stenonema Flatheaded Mayfly 4
Nemouridae Nemourid Stonefly 4
Orthocladius Non-Biting Midges 4
Cheumatopsyche Net-Spinning Caddisfly 4
Polypedilum Non-Biting Midges 4
Leptophlebia Pronggilled Mayfly 2
Optioservus Riffle Beetle 2
Cricotopus Non-Biting Midges 2
Brillia Non-Biting Midges 2
Stenelmis Beetle 2
Neophylax Caddisfly 2
Antocha Crane Fly 1
Lype Net Tube Caddisfly 1
Pycnopsyche Great Autumn Brown Sedge Caddisfly 1
Conchapelopia Non-Biting Midges 1
Corynoneura Non-Biting Midges 1
Diplectrona Net-Spinning Caddisfly 1
Hydropsyche Net-Spinning Caddisfly 1
Stictochironomus Non-Biting Midge 1
Isonychia Slate Drake Mayfly 1
Ephemerellidae Spiny Crawler Mayfly 1
Thienemanniella Non-Biting Midges 1
Thienemannimyia group 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.