MBSS Site Summary for: PRMO-107-R-2017

Site Photos

Field photo showing stream conditions at site PRMO-107-R-2017-DownstreamFrom50m (Opens in a new window) Field photo showing stream conditions at site PRMO-107-R-2017-UpstreamFrom50m (Opens in a new window)

Located on UT2 Potomac River in the Potomac River MO Cnty watershed, 8-digit code: 02140202.
This stream was visited in the spring on 4/10/2017 and again in the summer on 8/1/2017.

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 - 3.3 / 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 380 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 %
Agricultural Land Use 58.8 %
Forested Land Use 36 %


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

Physical Stream Habitat
Instream Habitat 14/20 (Suboptimal)
Epifaunal Substrate 9/20 (Marginal)
Velocity/Depth Diversity 14/20 (Suboptimal)
Pool Quality
Pool Extent = 44 meters 		17/20 (Optimal)
Riffle Quality
Riffle Extent = 33 meters 		11/20 (Suboptimal)
Shading 20 %
Embeddedness 55 %
The embeddedness, a measure of silt on the stream bottom, was 55%. This is relatively high, and may exclude some biota.


Stream Water Quality:
pH (lab) 7.89
Alkalinity
(acid neutralizing capacity) 		675.9 µeq/L
Dissolved organic carbon (DOC) 2.2687 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 21 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Cyprinella Sp. 487
Eastern Mosquitofish 160
Bluntnose Minnow 129
Goldfish 119
Nocomis Sp. 26
Green Sunfish 22
Yellow Bullhead 22
Largemouth Bass 20
White Sucker 12
Blacknose Dace 11
Longear Sunfish 11
Creek Chub 10
Central Stoneroller 7
Common Shiner 4
Creek Chubsucker 4
Fallfish 4
Bluegill 3
Fantail Darter 2
Redbreast Sunfish 2
Common Carp 1
Golden Redhorse 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Gray Treefrog
Northern Green Frog

Crayfish:
Orconectes virilis
Procambarus acutus/zonangulus

Exotic Plants:
Japanese Stiltgrass
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
CRANGONYX Amphipod 19
POLYPEDILUM Non-Biting Midges 17
STENELMIS Beetle 16
ORTHOCLADIUS Non-Biting Midges 10
THIENEMANNIMYIA GROUP Non-Biting Midges 9
NIGRONIA Megaloptera (Dark Fishfly) 8
MICROPSECTRA Non-Biting Midges 4
PISIDIUM Freshwater Pea (Pill) Clam 4
PHYSA Air-Breathing Freshwater Snail 3
CHIRONOMINI Non-Biting Midge 2
CHEUMATOPSYCHE Net-Spinning Caddisfly 2
HEMERODROMIA Tiny Fly 2
LUMBRICULIDAE Worm 1
TVETENIA Non-Biting Midges 1
DUBIRAPHIA Riffle Beetle 1
AMPHINEMURA Spring Stonefly 1
POTTHASTIA Non-Biting Midges 1
RHEOTANYTARSUS Non-Biting Midges 1
TANYPODINAE Non-Biting Midges 1
TANYTARSUS Non-Biting Midges 1
DIPLECTRONA Net-Spinning Caddisfly 1
ORTHOCLADIINAE Midge 1
NEMOURIDAE Nemourid Stonefly 1
DIPLOCLADIUS Non-Biting Midges 1
CAECIDOTEA Isopod 1
MACCAFFERTIUM March Brown And Cahill Mayfly 1
EURYLOPHELLA Mayfly 1
STENONEMA Flatheaded Mayfly 1
MEROPELOPIA 1
FOSSARIA Air Breathing Freshwater Snail 1
MENETUS Air Breathing Freshwater Snail 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.