MBSS Site Summary for: MO-P-206-311-97


Located on BROAD RUN in the Potomac River MO Cnty watershed, 8-digit code: 02140202.
This stream was visited in the spring on 3/25/1997 and again in the summer on 6/17/1997.

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 - 4.7 / 5.0
Benthic IBI Poor - 2.8 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 6,819 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 0.5 %
Agricultural Land Use 70.5 %
Forested Land Use 27.4 %


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 5/20 (Poor)
Velocity/Depth Diversity 12/20 (Suboptimal)
Pool Quality
Pool Extent = meters 		12/20 (Suboptimal)
Riffle Quality 6/20 (Marginal)
Shading 75 %
Embeddedness 45 %


Stream Water Quality:
Water temperature 19.1 ° C
Dissolved oxygen (DO) 7.3 mg/L
pH (lab) 7.48
Conductivity 163 µmho/cm
Alkalinity
(acid neutralizing capacity) 		624.3 µeq/L
Dissolved organic carbon (DOC) 2.6 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 22 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Potomac Sculpin 179
Bluntnose Minnow 129
Central Stoneroller 52
White Sucker 36
Fantail Darter 28
Redbreast Sunfish 25
Creek Chub 21
Bluegill 15
Green Sunfish 14
Rosyside Dace 9
Creek Chubsucker 8
Blacknose Dace 7
Greenside Darter 2
Largemouth Bass 2
Longnose Dace 2
Spotfin Shiner 2
Fallfish 1
Northern Hogsucker 1
Pumpkinseed 1
Smallmouth Bass 1
Tessellated Darter 1
Yellow Bullhead 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern American Toad
Eastern Box Turtle
Northern Two-Lined Salamander
Northern Watersnake
Pickerel Frog

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 20
Simulium Black Fly 10
Cheumatopsyche Net-Spinning Caddisfly 9
Amphinemura Spring Stonefly 8
Acerpenna Tiny Blue-Winged Olive Mayflies 7
Isoperla Stripetail Stonefly 5
Parametriocnemus Non-Biting Midges 5
Paratanytarsus Non-Biting Midges 4
Hemerodromia Tiny Fly 4
Psephenus Water Penny 3
Clinocera Aquatic Dance Fly 3
Antocha Crane Fly 3
Stenonema Flatheaded Mayfly 3
Stenelmis Beetle 2
Polypedilum Non-Biting Midges 2
Thienemanniella Non-Biting Midges 2
Tvetenia Non-Biting Midges 2
Eukiefferiella Non-Biting Midges 2
Microtendipes Non-Biting Midges 2
Conchapelopia Non-Biting Midges 1
Isonychia Slate Drake Mayfly 1
Neophylax Caddisfly 1
Leuctra  Rolled-Winged Stonefly 1
Chimarra Fingernet Caddisfly 1
Prostoia Spring 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.