MBSS Site Summary for: PRMO-110-R-2016

Site Photos

Field photo showing stream conditions at site PRMO-110-R-2016-MidpointDownstream (Opens in a new window) Field photo showing stream conditions at site PRMO-110-R-2016-MidpointUpstream (Opens in a new window)

Located on Broad Run in the Potomac River MO Cnty watershed, 8-digit code: 02140202.
This stream was visited in the spring on 3/8/2016 and again in the summer on 6/24/2016.

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 - 2.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 1,572 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 5.4 %
Agricultural Land Use 64.1 %
Forested Land Use 19.5 %


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

Physical Stream Habitat
Instream Habitat 15/20 (Suboptimal)
Epifaunal Substrate 13/20 (Suboptimal)
Velocity/Depth Diversity 12/20 (Suboptimal)
Pool Quality
Pool Extent = 63 meters 		15/20 (Suboptimal)
Riffle Quality
Riffle Extent = 16 meters 		12/20 (Suboptimal)
Shading 50 %
Embeddedness 20 %


Stream Water Quality:
pH (lab) 7.72
Alkalinity
(acid neutralizing capacity) 		627.5 µeq/L
Dissolved organic carbon (DOC) 3.4504 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
Blacknose Dace 131
Potomac Sculpin 98
Fantail Darter 38
Creek Chub 33
Bluegill 23
Central Stoneroller 14
Green Sunfish 7
White Sucker 7
Largemouth Bass 4
Tessellated Darter 4
Pumpkinseed 3
Bluntnose Minnow 1
Greenside Darter 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern American Toad
Northern Green Frog
Northern Spring Peeper
Wood Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Stiltgrass
Mile-A-Minute
Multiflora Rose
Oriental Bittersweet
Shrub Honeysuckle
Tree Of Heaven
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Prosimulium Black Fly 85
Neophylax Caddisfly 9
Chimarra Fingernet Caddisfly 5
Stegopterna Black Fly 3
Capniidae Small Winter Stonefly 2
Psephenus Water Penny 2
Orthocladius Non-Biting Midges 2
Simuliidae Black Fly 2
Stenelmis Beetle 2
Leuctra  Rolled-Winged Stonefly 1
Simulium Black Fly 1
Stenonema Flatheaded Mayfly 1
Clioperla Green-Winged Stonefly 1
Cheumatopsyche Net-Spinning Caddisfly 1
Brillia Non-Biting Midges 1
Microtendipes Non-Biting Midges 1
Thienemanniella Non-Biting Midges 1
Thienemannimyia Group Non-Biting Midges 1
Tvetenia Non-Biting Midges 1
Anafroptilum Small Minnow Mayfly 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.