MBSS Site Summary for: CR-P-193-311-96


Located on BEAVER RUN in the Liberty Reservoir watershed, 8-digit code: 02130907.
This stream was visited in the spring on 3/12/1996 and again in the summer on 7/11/1996.

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 8,260 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 4.6 %
Agricultural Land Use 69.3 %
Forested Land Use 25.9 %


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 16/20 (Optimal)
Velocity/Depth Diversity 18/20 (Optimal)
Pool Quality
Pool Extent = meters 		17/20 (Optimal)
Riffle Quality 17/20 (Optimal)
Shading 30 %
Embeddedness 35 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 20.1 ° C
Dissolved oxygen (DO) 8.8 mg/L
pH (lab) 7.42
Conductivity 174 µmho/cm
Alkalinity
(acid neutralizing capacity) 		387.6 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 16 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blue Ridge Sculpin 802
Largemouth Bass 138
Central Stoneroller 99
Blacknose Dace 90
Longnose Dace 89
White Sucker 56
Cutlip Minnow 25
Green Sunfish 13
Bluntnose Minnow 11
Common Shiner 6
Satinfin Shiner 5
Northern Hogsucker 4
Bluegill 3
Rainbow Trout 3
Tessellated Darter 3
River Chub 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Northern Green Frog
Northern Two-Lined Salamander
Northern Watersnake
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
Cricotopus/Orthocladius Midge 19
Prosimulium Black Fly 11
Antocha Crane Fly 8
Cheumatopsyche Net-Spinning Caddisfly 8
Isonychia Slate Drake Mayfly 8
Prostoia Spring Stonefly 7
Stenonema Flatheaded Mayfly 5
Hydropsyche Net-Spinning Caddisfly 4
Parametriocnemus Non-Biting Midges 3
Diamesa Bloodworm 3
Acroneuria Golden Stoneflies 2
Eurylophella Mayfly 2
Sympotthastia Non-Biting Midges 2
Optioservus Riffle Beetle 2
Ephemerella Sulphur Mayfly 2
Stictochironomus Non-Biting Midge 2
Conchapelopia Non-Biting Midges 1
Nigronia Megaloptera (Dark Fishfly) 1
Clioperla Green-Winged Stonefly 1
Corydalus Dobsonfly 1
Chimarra Fingernet Caddisfly 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.