MBSS Site Summary for: CR-P-224-226-95


Located on MIDDLE RUN in the Liberty Reservoir watershed, 8-digit code: 02130907.
This stream was visited in the spring on 3/31/1995 and again in the summer on 7/20/1995.

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 - 4.3 / 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 2,076 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 3.5 %
Agricultural Land Use 68.3 %
Forested Land Use 28.1 %


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

Physical Stream Habitat
Instream Habitat 11/20 (Suboptimal)
Epifaunal Substrate 11/20 (Suboptimal)
Velocity/Depth Diversity 7/20 (Marginal)
Pool Quality
Pool Extent = meters 		8/20 (Marginal)
Riffle Quality 8/20 (Marginal)
Shading 80 %
Embeddedness 30 %


Stream Water Quality:
Water temperature 24.2 ° C
Dissolved oxygen (DO) 7.4 mg/L
pH (lab) 7.23
Conductivity 202 µmho/cm
Alkalinity
(acid neutralizing capacity) 		352.6 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 10 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 653
Blue Ridge Sculpin 437
Rosyside Dace 287
Creek Chub 95
Central Stoneroller 87
White Sucker 63
Longnose Dace 19
Northern Hogsucker 5
Tessellated Darter 2
Cutlip Minnow 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Dusky Salamander
Northern Green Frog
Northern Red Salamander
Northern Two-Lined Salamander
Pickerel 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
Cricotopus/Orthocladius Midge 20
Parametriocnemus Non-Biting Midges 14
Optioservus Riffle Beetle 13
Stenonema Flatheaded Mayfly 11
Tanytarsus Non-Biting Midges 7
Stempellinella Non-Biting Midges 6
Conchapelopia Non-Biting Midges 6
Microtendipes Non-Biting Midges 6
Chloroperlidae Green Stonefly 5
Clinocera Aquatic Dance Fly 4
Polypedilum Non-Biting Midges 4
Stenelmis Beetle 3
Baetidae Small Minnow Mayfly 3
Amphinemura Spring Stonefly 2
Prosimulium Black Fly 2
Diamesa Bloodworm 2
Neophylax Caddisfly 2
Physa Air-Breathing Freshwater Snail 2
Sympotthastia Non-Biting Midges 1
Rheocricotopus Non-Biting Midges 1
Orthocladius Non-Biting Midges 1
Gomphidae Clubtail Dragonfly 1
Antocha Crane Fly 1
Eurylophella Mayfly 1
Orthocladiinae Midge 1
Hemerodromia Tiny Fly 1
Hydrobius Water Scavenger Beetle 1
Oulimnius Riffle Beetle 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.