MBSS Site Summary for: CR-P-166-221-95


Located on LITTLE MORGAN RUN in the Liberty Reservoir watershed, 8-digit code: 02130907.
This stream was visited in the spring on 4/6/1995 and again in the summer on 7/10/1995.

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 Good - 5.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 1,754 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 0.2 %
Agricultural Land Use 68.4 %
Forested Land Use 30.8 %


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 10/20 (Marginal)
Pool Quality
Pool Extent = meters 		11/20 (Suboptimal)
Riffle Quality 18/20 (Optimal)
Shading 65 %
Embeddedness 13 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 16.2 ° C
Dissolved oxygen (DO) 9.53 mg/L
pH (lab) 7.1
Conductivity 168 µmho/cm
Alkalinity
(acid neutralizing capacity) 		314.9 µeq/L
Dissolved organic carbon (DOC) 0 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
Blue Ridge Sculpin 1534
Blacknose Dace 377
Central Stoneroller 138
Creek Chub 52
Rosyside Dace 52
Longnose Dace 44
Brown Trout 4
White Sucker 4
Largemouth Bass 3
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Ephemerella Sulphur Mayfly 36
Epeorus Mayfly 11
Amphinemura Spring Stonefly 6
Optioservus Riffle Beetle 5
Oulimnius Riffle Beetle 5
Orthocladius Non-Biting Midges 5
Parametriocnemus Non-Biting Midges 5
Polypedilum Non-Biting Midges 4
Hydropsyche Net-Spinning Caddisfly 4
Clinocera Aquatic Dance Fly 4
Probezzia Biting Midges 3
Baetis Blue-Winged Olive Mayfly 3
Tanytarsus Non-Biting Midges 3
Conchapelopia Non-Biting Midges 2
Orthocladiinae Midge 2
Hexatoma Crane Fly 2
Sweltsa Stonefly 2
Hemerodromia Tiny Fly 1
Sialis Alderfly 1
Stenonema Flatheaded Mayfly 1
Eurylophella Mayfly 1
Neophylax Caddisfly 1
Lanthus Clubtail Dragonfly 1
Paraleptophlebia Blue Quill Mayfly 1
Cheumatopsyche Net-Spinning Caddisfly 1
Cricotopus 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.