MBSS Site Summary for: CR-P-035-216-96


Located on SILVER RUN in the Double Pipe Creek watershed, 8-digit code: 02140304.
This stream was visited in the spring on 3/6/1996 and again in the summer on 6/4/1996.

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 - 5.0 / 5.0
Benthic IBI Poor - 1.5 / 5.0

Land Use

Land use can provide important information for determining stream health.
(Hint: Screen readers will announce definitions; mouse users can hover over dotted text.)
Catchment area 4,849 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 0.5 %
Agricultural Land Use 74.5 %
Forested Land Use 23.6 %


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

Physical Stream Habitat
Instream Habitat 14/20 (Suboptimal)
Epifaunal Substrate 14/20 (Suboptimal)
Velocity/Depth Diversity 15/20 (Suboptimal)
Pool Quality
Pool Extent = meters 		15/20 (Suboptimal)
Riffle Quality 15/20 (Suboptimal)
Shading 78 %
Embeddedness 50 %


Stream Water Quality:
Water temperature 18.2 ° C
Dissolved oxygen (DO) 9.4 mg/L
pH (lab) 7.55
Conductivity 196 µmho/cm
Alkalinity
(acid neutralizing capacity) 		735.9 µeq/L
Dissolved organic carbon (DOC) 3 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 13 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blue Ridge Sculpin 186
Blacknose Dace 133
Rosyside Dace 126
Fantail Darter 32
Longnose Dace 17
Creek Chub 13
White Sucker 10
Potomac Sculpin 6
Central Stoneroller 4
Common Shiner 3
Greenside Darter 3
Bluegill 1
Golden Shiner 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
No amphibians and reptiles noted.

Crayfish:
Orconectes virilis

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Prosimulium Black Fly 133
Prostoia Spring Stonefly 14
Chimarra Fingernet Caddisfly 5
Neophylax Caddisfly 2
Antocha Crane Fly 1
Glossosoma Little Black Caddisfly 1
Optioservus Riffle Beetle 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.