MBSS Site Summary for: MO-P-310-313-97


Located on ROCK CR in the Rock Creek watershed, 8-digit code: 02140206.
This stream was visited in the spring on 3/6/1997 and again in the summer on 6/23/1997.

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 - 1.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 10,607 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 21.7 %
Agricultural Land Use 50.9 %
Forested Land Use 24.4 %


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

Physical Stream Habitat
Instream Habitat 13/20 (Suboptimal)
Epifaunal Substrate 11/20 (Suboptimal)
Velocity/Depth Diversity 9/20 (Marginal)
Pool Quality
Pool Extent = meters 		8/20 (Marginal)
Riffle Quality 14/20 (Suboptimal)
Shading 70 %
Embeddedness 25 %


Stream Water Quality:
Water temperature 26.9 ° C
Dissolved oxygen (DO) 6.8 mg/L
pH (lab) 7.35
Conductivity 202 µmho/cm
Alkalinity
(acid neutralizing capacity) 		621.9 µeq/L
Dissolved organic carbon (DOC) 3.7 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 14 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 93
Swallowtail Shiner 60
Longnose Dace 47
Satinfin Shiner 20
Tessellated Darter 13
Cutlip Minnow 7
Spottail Shiner 7
Redbreast Sunfish 6
Creek Chub 5
Margined Madtom 5
Yellow Bullhead 4
Fallfish 3
White Sucker 3
Northern Hogsucker 2
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Wood Frog

Crayfish:
Orconectes limosus

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Cricotopus/Orthocladius Midge 60
Naididae Aquatic Worm 6
Sphaerium Fingernail Clam 6
Hydropsyche Net-Spinning Caddisfly 6
Tubificidae Aquatic Worm 4
Rheocricotopus Non-Biting Midges 3
Thienemannimyia Non-Biting Midges 3
Pisidium Freshwater Pea (Pill) Clam 3
Cheumatopsyche Net-Spinning Caddisfly 2
Optioservus Riffle Beetle 1
Collembola Springtail 1
Tipula Crane Fly 1
Girardia Freshwater Flatworm 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.