MBSS Site Summary for: PRMO-205-X-2015


Located on GREENBRIAR BRANCH in the Potomac River MO Cnty watershed, 8-digit code: 02140202.
This stream was visited in the spring on 4/28/2015 and again in the summer on 8/24/2015.

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 - 3.7 / 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 No data available 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 No data available
Agricultural Land Use No data available
Forested Land Use No data available


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

Physical Stream Habitat
Instream Habitat 10/20 (Marginal)
Epifaunal Substrate 9/20 (Marginal)
Velocity/Depth Diversity 8/20 (Marginal)
Pool Quality
Pool Extent = 63 meters 		8/20 (Marginal)
Riffle Quality
Riffle Extent = 12 meters 		8/20 (Marginal)
Shading 75 %
Embeddedness 35 %


Stream Water Quality:
No water quality measurements available for this site.

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 12 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 271
Rosyside Dace 136
Creek Chub 127
Potomac Sculpin 39
Central Stoneroller 33
Fantail Darter 24
Bluntnose Minnow 8
White Sucker 6
Green Sunfish 4
Longnose Dace 3
Bluegill 1
Largemouth Bass 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Water Snake

Crayfish:
Orconectes virilis

Exotic Plants:
Japanese Barberry
Japanese Stiltgrass
Multiflora Rose
Wineberry
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Polypedilum Non-Biting Midges 15
Tvetenia Non-Biting Midges 13
Orthocladius Non-Biting Midges 12
Cheumatopsyche Net-Spinning Caddisfly 7
Simulium Black Fly 7
Cricotopus Non-Biting Midges 5
Parametriocnemus Non-Biting Midges 4
Amphinemura Spring Stonefly 4
Psephenus Water Penny 4
Oulimnius Riffle Beetle 3
Tanytarsus Non-Biting Midges 3
Rheocricotopus Non-Biting Midges 3
Rheotanytarsus Non-Biting Midges 3
Sympotthastia Non-Biting Midges 3
Nilotanypus 3
Neophylax Caddisfly 2
Antocha Crane Fly 2
Orthocladiinae Midge 2
Thienemannimyia Group Non-Biting Midges 2
Hemerodromia Tiny Fly 1
Tanypodinae Non-Biting Midges 1
Tanytarsini Non-Biting Midges 1
Thienemanniella Non-Biting Midges 1
Baetidae Small Minnow Mayfly 1
Cladopelma 1
Hydropsyche Net-Spinning Caddisfly 1
Corynoneura Non-Biting Midges 1
Eukiefferiella Non-Biting Midges 1
Chimarra Fingernet Caddisfly 1
Prostoma Freshwater Nemertean (Ribbon Worm) 1
Gammarus Amphipod 1
Tubificidae Aquatic Worm 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.