MBSS Site Summary for: CR-P-374-343-96


Located on BEAR BR in the Double Pipe Creek watershed, 8-digit code: 02140304.
This stream was visited in the spring on 3/12/1996 and again in the summer on 8/7/1996.

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 - 2.5 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 7,106 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 0.4 %
Agricultural Land Use 79.7 %
Forested Land Use 18.3 %


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 14/20 (Suboptimal)
Pool Quality
Pool Extent = meters 		15/20 (Suboptimal)
Riffle Quality 12/20 (Suboptimal)
Shading 35 %
Embeddedness 25 %


Stream Water Quality:
Water temperature 18 ° C
Dissolved oxygen (DO) 9.9 mg/L
pH (lab) 7.29
Conductivity 196 µmho/cm
Alkalinity
(acid neutralizing capacity) 		634.1 µeq/L
Dissolved organic carbon (DOC) 1.8 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 243
Blacknose Dace 126
Potomac Sculpin 116
Longnose Dace 114
Rosyside Dace 47
Fantail Darter 41
Creek Chub 36
White Sucker 30
Northern Hogsucker 13
Bluegill 7
Bluntnose Minnow 7
Common Shiner 7
Eastern Silvery Minnow 3
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern American Toad

Crayfish:
Orconectes virilis

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Cricotopus/Orthocladius Midge 45
Ephemerella Sulphur Mayfly 17
Prostoia Spring Stonefly 16
Optioservus Riffle Beetle 8
Diamesa Bloodworm 5
Stenonema Flatheaded Mayfly 4
Dicranota Hairy-Eyed Cranefly 3
Cheumatopsyche Net-Spinning Caddisfly 3
Paramerina Non-Biting Midge 2
Stenelmis Beetle 2
Acerpenna Tiny Blue-Winged Olive Mayflies 2
Hemerodromia Tiny Fly 1
Ephemera Mayfly 1
Amphinemura Spring Stonefly 1
Parametriocnemus Non-Biting Midges 1
Neophylax Caddisfly 1
Hexatoma Crane Fly 1
Chimarra Fingernet Caddisfly 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.