MBSS Site Summary for: CR-P-084-309-96


Located on MORGAN RUN in the Liberty Reservoir watershed, 8-digit code: 02130907.
This stream was visited in the spring on 3/18/1996 and again in the summer on 9/4/1996.

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 Good - 5.0 / 5.0
Benthic IBI Fair - 3.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 9,765 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 0.7 %
Agricultural Land Use 77 %
Forested Land Use 21.6 %


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

Physical Stream Habitat
Instream Habitat 16/20 (Optimal)
Epifaunal Substrate 17/20 (Optimal)
Velocity/Depth Diversity 20/20 (Optimal)
Pool Quality
Pool Extent = meters 		19/20 (Optimal)
Riffle Quality 16/20 (Optimal)
Shading 75 %
Embeddedness 30 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 16.9 ° C
Dissolved oxygen (DO) 9.3 mg/L
pH (lab) 7.57
Conductivity 156 µmho/cm
Alkalinity
(acid neutralizing capacity) 		392.2 µeq/L
Dissolved organic carbon (DOC) 1 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
Blue Ridge Sculpin 666
Rosyside Dace 93
Longnose Dace 76
White Sucker 73
Creek Chub 65
Blacknose Dace 56
Central Stoneroller 50
Cutlip Minnow 38
Northern Hogsucker 9
Brown Trout 4
Common Shiner 4
Tessellated Darter 3
Bluntnose Minnow 2
Bluegill 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Wood 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
Orthocladius Non-Biting Midges 37
Prosimulium Black Fly 35
Prostoia Spring Stonefly 8
Sympotthastia Non-Biting Midges 6
Ephemerella Sulphur Mayfly 3
Optioservus Riffle Beetle 2
Isonychia Slate Drake Mayfly 1
Amphinemura Spring Stonefly 1
Parametriocnemus Non-Biting Midges 1
Stempellinella Non-Biting Midges 1
Antocha Crane Fly 1
Tipula Crane Fly 1
Stenonema Flatheaded Mayfly 1
Rhyacophila Free-Living Caddisfly 1
Epeorus Mayfly 1
Cricotopus/Orthocladius Midge 1
Cheumatopsyche Net-Spinning Caddisfly 1
Hydropsyche Net-Spinning Caddisfly 1
Eukiefferiella Non-Biting Midges 1
Clinocera Aquatic Dance Fly 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.