MBSS Site Summary for: CR-P-365-219-96


Located on MEADOW BR in the Double Pipe Creek watershed, 8-digit code: 02140304.
This stream was visited in the spring on 3/5/1996 and again in the summer on 6/17/1996.

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 - 2.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 4,803 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 1.3 %
Agricultural Land Use 78.3 %
Forested Land Use 18.9 %


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 13/20 (Suboptimal)
Velocity/Depth Diversity 13/20 (Suboptimal)
Pool Quality
Pool Extent = meters 		14/20 (Suboptimal)
Riffle Quality 14/20 (Suboptimal)
Shading 10 %
Embeddedness 25 %


Stream Water Quality:
Water temperature 24.3 ° C
Dissolved oxygen (DO) 8.5 mg/L
pH (lab) 7.98
Conductivity 271 µmho/cm
Alkalinity
(acid neutralizing capacity) 		1079 µeq/L
Dissolved organic carbon (DOC) 1.1 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:
The following 14 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Fantail Darter 330
Longnose Dace 234
Blacknose Dace 233
Potomac Sculpin 99
Spottail Shiner 51
Creek Chub 39
Bluntnose Minnow 23
White Sucker 23
Rosyside Dace 20
Silverjaw Minnow 8
Blue Ridge Sculpin 4
Greenside Darter 2
Bluegill 1
Central Stoneroller 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
Optioservus Riffle Beetle 50
Cricotopus Non-Biting Midges 13
Cheumatopsyche Net-Spinning Caddisfly 7
Nemouridae Nemourid Stonefly 6
Parametriocnemus Non-Biting Midges 5
Stenelmis Beetle 4
Prosimulium Black Fly 3
Antocha Crane Fly 3
Ephemerella Sulphur Mayfly 3
Psephenus Water Penny 2
Tanytarsus Non-Biting Midges 2
Ephemera Mayfly 2
Diplectrona Net-Spinning Caddisfly 1
Hydropsyche Net-Spinning Caddisfly 1
Hexatoma Crane Fly 1
Dicranota Hairy-Eyed Cranefly 1
Stegopterna Black Fly 1
Capniidae Small Winter Stonefly 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.