MBSS Site Summary for: LCON-120-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 Poor - 1.0 / 5.0
Benthic IBI Fair - 3.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 127 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 4 %
Agricultural Land Use 0 %
Forested Land Use 95 %


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

Physical Stream Habitat
Instream Habitat 7/20 (Marginal)
Epifaunal Substrate 9/20 (Marginal)
Velocity/Depth Diversity 6/20 (Marginal)
Pool Quality
Pool Extent = 14 meters 		6/20 (Marginal)
Riffle Quality
Riffle Extent = 63 meters 		6/20 (Marginal)
Shading 95 %
Embeddedness 30 %


Stream Water Quality:
Water temperature 17.9 ° C
Dissolved oxygen (DO) 7.1 mg/L
pH (lab) 6.48
Conductivity 37 µmho/cm
Alkalinity
(acid neutralizing capacity) 		33.4 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 1 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 18
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
No amphibians and reptiles noted.

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Stiltgrass
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Leuctra  Rolled-Winged Stonefly 71
Ephemerella Sulphur Mayfly 16
Amphinemura Spring Stonefly 11
Diplectrona Net-Spinning Caddisfly 11
Parametriocnemus Non-Biting Midges 8
Perlodidae Perlodid Stonefly 5
Prosimulium Black Fly 4
Paraleptophlebia Blue Quill Mayfly 4
Stenonema Flatheaded Mayfly 3
Eccoptura Yellow Stone Stonefly 3
Stegopterna Black Fly 2
Ameletus Combmouthed Minnow Mayfly 2
Hexatoma Crane Fly 2
Wormaldia Fingernet Caddisfly 2
Tanypodinae Non-Biting Midges 2
Tvetenia Non-Biting Midges 2
Limnephilidae Northern Casemaker Caddisfly 1
Sweltsa Stonefly 1
Isoperla Stripetail 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.