MBSS Site Summary for: LCON-106-B-2008

Site Photos

Field photo showing stream conditions at site LCON-106-B-2008-1 (Opens in a new window) Field photo showing stream conditions at site LCON-106-B-2008-2 (Opens in a new window)

Located on UT LITTLE CONOCOCHEAGUE CREEK in the Little Conococheague watershed, 8-digit code: 02140505.
This stream was visited in the spring on 3/18/2008 and again in the summer on 7/14/2008.

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 - 1.7 / 5.0
Benthic IBI Fair - 3.3 / 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 146 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 4.6 %
Agricultural Land Use 0 %
Forested Land Use 95.4 %


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

Physical Stream Habitat
Instream Habitat 12/20 (Suboptimal)
Epifaunal Substrate 12/20 (Suboptimal)
Velocity/Depth Diversity 5/20 (Poor)
Pool Quality
Pool Extent = 24 meters 		7/20 (Marginal)
Riffle Quality
Riffle Extent = 50 meters 		6/20 (Marginal)
Shading 90 %
Embeddedness 50 %


Stream Water Quality:
Water temperature 19.1 ° C
Dissolved oxygen (DO) 8.6 mg/L
pH (lab) 6.59
Conductivity 43 µmho/cm
Alkalinity
(acid neutralizing capacity) 		63.7 µeq/L
Dissolved organic carbon (DOC) 0.9494 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 81
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Two-Lined Salamander

Crayfish:
Cambarus bartonii bartonii

Exotic Plants:
Garlic Mustard
Japanese Barberry
Japanese Honeysuckle
Japanese Stiltgrass
Wineberry
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Leuctra  Rolled-Winged Stonefly 22
Amphinemura Spring Stonefly 21
Parametriocnemus Non-Biting Midges 12
Prosimulium Black Fly 5
Diplectrona Net-Spinning Caddisfly 5
Eukiefferiella Non-Biting Midges 4
Platysmittia 4
Stegopterna Black Fly 4
Thienemannimyia Group Non-Biting Midges 4
Tvetenia Non-Biting Midges 4
Ameletus Combmouthed Minnow Mayfly 3
Perlidae Common Stonefly 2
Pseudolimnophila Crane Fly 2
Eurylophella Mayfly 2
Wormaldia Fingernet Caddisfly 2
Rhyacophila Free-Living Caddisfly 2
Micropsectra Non-Biting Midges 2
Corynoneura Non-Biting Midges 2
Ephemerella Sulphur Mayfly 2
Leptophlebiidae Pronggilled Mayfly 2
Oulimnius Riffle Beetle 2
Limnephilidae Northern Casemaker Caddisfly 1
Pycnopsyche Great Autumn Brown Sedge Caddisfly 1
Tipula Crane Fly 1
Paraleptophlebia Blue Quill Mayfly 1
Ceratopogon Biting Midge 1
Ceratopogonidae Biting Midge 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.