MBSS Site Summary for: MO-P-014-107-97


Located on POTOMAC R UT7 in the Potomac River MO Cnty watershed, 8-digit code: 02140202.
This stream was visited in the spring on 3/20/1997 and again in the summer on 7/15/1997.

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 Poor - 2.7 / 5.0
Benthic IBI Poor - 2.0 / 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 74.3 %
Forested Land Use 25.8 %


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 5/20 (Poor)
Velocity/Depth Diversity 11/20 (Suboptimal)
Pool Quality
Pool Extent = meters 		16/20 (Optimal)
Riffle Quality 3/20 (Poor)
Shading 55 %
Embeddedness 25 %


Stream Water Quality:
Water temperature 25 ° C
Dissolved oxygen (DO) 5.5 mg/L
pH (lab) 7.32
Conductivity 150 µmho/cm
Alkalinity
(acid neutralizing capacity) 		496.9 µeq/L
Dissolved organic carbon (DOC) 2.8 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 15 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 50
Bluegill 46
Green Sunfish 35
Creek Chub 33
Pumpkinseed 26
Yellow Bullhead 25
Central Stoneroller 11
Bluntnose Minnow 8
Redbreast Sunfish 5
White Sucker 4
Creek Chubsucker 2
Common Shiner 1
Eastern Mosquitofish 1
Largemouth Bass 1
Spotfin Shiner 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Northern Green Frog

Crayfish:
No crayfish noted.

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Cricotopus/Orthocladius Midge 17
Parametriocnemus Non-Biting Midges 11
Tubificidae Aquatic Worm 10
Enchytraeidae Aquatic Worm 9
Naididae Aquatic Worm 9
Conchapelopia Non-Biting Midges 9
Diamesa Bloodworm 8
Caecidotea Isopod 4
Micropsectra Non-Biting Midges 4
Cheumatopsyche Net-Spinning Caddisfly 3
Cryptochironomus Non-Biting Midges 2
Stenelmis Beetle 2
Polypedilum Non-Biting Midges 2
Lymnaeidae Pond Snail 1
Leptophlebia Pronggilled Mayfly 1
Hemerodromia Tiny Fly 1
Stegopterna Black Fly 1
Stenonema Flatheaded Mayfly 1
Perlinella 1
Crangonyx Amphipod 1
Microtendipes Non-Biting Midges 1
Nanocladius Non-Biting Midges 1
Corynoneura Non-Biting Midges 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.