MBSS Site Summary for: LCON-119-R-2004


Located on LITTLE CONOCOCHEAGUE CR UT 2 in the Little Conococheague watershed, 8-digit code: 02140505.
This stream was visited in the spring on 3/23/2004 and again in the summer on 7/19/2004.

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 Fair - 3.3 / 5.0
Benthic IBI Fair - 3.8 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 747 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 3 %
Agricultural Land Use 0 %
Forested Land Use 97 %


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 15/20 (Suboptimal)
Velocity/Depth Diversity 7/20 (Marginal)
Pool Quality
Pool Extent = 26 meters 		7/20 (Marginal)
Riffle Quality
Riffle Extent = 55 meters 		8/20 (Marginal)
Shading 93 %
Embeddedness 25 %


Stream Water Quality:
Water temperature 17.1 ° C
Dissolved oxygen (DO) 6.3 mg/L
pH (lab) 7.14
Conductivity 91 µmho/cm
Alkalinity
(acid neutralizing capacity) 		170.7 µeq/L
Dissolved organic carbon (DOC) 0.8 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 5 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 353
Blue Ridge Sculpin 41
Creek Chub 20
Fantail Darter 8
Longnose Dace 2
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Stiltgrass
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Ephemerella Sulphur Mayfly 48
Prosimulium Black Fly 13
Sweltsa Stonefly 6
Perlodidae Perlodid Stonefly 5
Cinygmula Dark Red Quill Mayfly 5
Paraleptophlebia Blue Quill Mayfly 4
Chloroperlidae Green Stonefly 3
Baetidae Small Minnow Mayfly 3
Tvetenia Non-Biting Midges 3
Parametriocnemus Non-Biting Midges 3
Amphinemura Spring Stonefly 2
Prostoia Spring Stonefly 1
Thienemannimyia group Non-Biting Midges 1
Lepidostoma Little Brown Sedge Caddisfly 1
Epeorus Mayfly 1
Cheumatopsyche Net-Spinning Caddisfly 1
Microtendipes Non-Biting Midges 1
Perlidae Common Stonefly 1
Antocha Crane Fly 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.