MBSS Site Summary for: CR-P-341-121-96


Located on LITTLE MORGAN RUN UT1 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 6/24/1996.

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 - 4.0 / 5.0
Benthic IBI Poor - 2.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 914 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 5.3 %
Agricultural Land Use 77 %
Forested Land Use 17.7 %


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

Physical Stream Habitat
Instream Habitat 17/20 (Optimal)
Epifaunal Substrate 18/20 (Optimal)
Velocity/Depth Diversity 11/20 (Suboptimal)
Pool Quality
Pool Extent = meters 		13/20 (Suboptimal)
Riffle Quality 18/20 (Optimal)
Shading 90 %
Embeddedness 10 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 16.6 ° C
Dissolved oxygen (DO) 9.5 mg/L
pH (lab) 7.41
Conductivity 204 µmho/cm
Alkalinity
(acid neutralizing capacity) 		438.1 µeq/L
Dissolved organic carbon (DOC) 1.1 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 4 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blue Ridge Sculpin 114
Blacknose Dace 100
Green Sunfish 6
Longnose Dace 2
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern Gartersnake
Northern Green Frog
Pickerel Frog

Crayfish:
Orconectes virilis

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Orthocladius Non-Biting Midges 39
Sympotthastia Non-Biting Midges 21
Ephemerella Sulphur Mayfly 12
Thienemannimyia Non-Biting Midges 7
Optioservus Riffle Beetle 5
Eukiefferiella Non-Biting Midges 4
Prosimulium Black Fly 3
Nemouridae Nemourid Stonefly 3
Cheumatopsyche Net-Spinning Caddisfly 2
Tipula Crane Fly 2
Baetidae Small Minnow Mayfly 2
Ephemerellidae Spiny Crawler Mayfly 1
Hexatoma Crane Fly 1
Anchytarsus Beetle 1
Tipulidae Cranefly 1
Chimarra Fingernet Caddisfly 1
Dicranota Hairy-Eyed Cranefly 1
Hydropsyche Net-Spinning Caddisfly 1
Brillia 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.