MBSS Site Summary for: COCA-108-N-2003

Site Photos

Field photo showing stream conditions at site COCA-108-N-2003-813 (Opens in a new window) Field photo showing stream conditions at site COCA-108-N-2003-814 (Opens in a new window)

Located on UT POTOMAC RIVER in the Potomac River MO Cnty watershed, 8-digit code: 02140202.
This stream was visited in the spring on 4/14/2003 and again in the summer on 7/2/2003.

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 Poor - 1.8 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 418 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0 %
Agricultural Land Use 42 %
Forested Land Use 56 %


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 16/20 (Optimal)
Velocity/Depth Diversity 8/20 (Marginal)
Pool Quality
Pool Extent = 22 meters 		9/20 (Marginal)
Riffle Quality
Riffle Extent = 62 meters 		13/20 (Suboptimal)
Shading 98 %
Embeddedness 20 %


Stream Water Quality:
Water temperature 18.9 ° C
Dissolved oxygen (DO) 8 mg/L
pH (lab) 7.44
Conductivity 81 µmho/cm
Alkalinity
(acid neutralizing capacity) 		330.7 µeq/L
Dissolved organic carbon (DOC) 1.7 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 9 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Yellow Bullhead 21
Blacknose Dace 17
Green Sunfish 17
Spotfin Shiner 14
Creek Chub 4
Bluntnose Minnow 1
Fantail Darter 1
Pumpkinseed 1
Redbreast Sunfish 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog
Northern Spring Peeper

Crayfish:
Cambaridae

Exotic Plants:
Japanese Honeysuckle
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Spirosperma Aquatic Oligochaete Worm 75
Diptera True Fly 35
Phagocata 10
Amphinemura Spring Stonefly 6
Orthocladius Non-Biting Midges 4
Stenelmis Beetle 3
Diamesa Bloodworm 3
Simulium Black Fly 2
Polypedilum Non-Biting Midges 2
Tipulidae Cranefly 2
Musculium Fingernail Clam 2
Hydrobaenus Midge 1
Orthocladiinae Midge 1
Micropsectra Non-Biting Midges 1
Leptophlebiidae Pronggilled Mayfly 1
Lumbriculidae Worm 1
Perlidae Common Stonefly 1
Tipula Crane Fly 1
Crangonyx Amphipod 1
Lepidoptera Aquatic Moth 1
Tubificidae Aquatic Worm 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.