MBSS Site Summary for: CR-P-999-323-95


Located on BEAVER 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 8/8/1995.

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 - 4.7 / 5.0
Benthic IBI Good - 4.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 6,106 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 4.8 %
Agricultural Land Use 71.5 %
Forested Land Use 23.5 %


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

Physical Stream Habitat
Instream Habitat 18/20 (Optimal)
Epifaunal Substrate 17/20 (Optimal)
Velocity/Depth Diversity 15/20 (Suboptimal)
Pool Quality
Pool Extent = meters 		14/20 (Suboptimal)
Riffle Quality 18/20 (Optimal)
Shading 80 %
Embeddedness 10 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 17.4 ° C
Dissolved oxygen (DO) 9.2 mg/L
pH (lab) 7.58
Conductivity 172 µmho/cm
Alkalinity
(acid neutralizing capacity) 		413.2 µeq/L
Dissolved organic carbon (DOC) 2 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 13 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blue Ridge Sculpin 649
Central Stoneroller 335
Blacknose Dace 260
Longnose Dace 128
White Sucker 62
Rosyside Dace 48
Northern Hogsucker 47
Cutlip Minnow 26
Brown Trout 3
Bluntnose Minnow 2
Tessellated Darter 2
Creek Chub 1
River Chub 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern Red-Backed Salamander
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
Ephemerella Sulphur Mayfly 30
Clinocera Aquatic Dance Fly 19
Elmidae Riffle Beetle 13
Optioservus Riffle Beetle 11
Cricotopus/Orthocladius Midge 10
Oulimnius Riffle Beetle 8
Orthocladius Non-Biting Midges 6
Hydropsyche Net-Spinning Caddisfly 5
Antocha Crane Fly 5
Isonychia Slate Drake Mayfly 5
Amphinemura Spring Stonefly 5
Cricotopus Non-Biting Midges 4
Diamesa Bloodworm 4
Neophylax Caddisfly 3
Stenonema Flatheaded Mayfly 3
Cheumatopsyche Net-Spinning Caddisfly 3
Simuliidae Black Fly 3
Eukiefferiella Non-Biting Midges 2
Conchapelopia Non-Biting Midges 2
Parametriocnemus Non-Biting Midges 2
Polypedilum Non-Biting Midges 2
Tanytarsus Non-Biting Midges 1
Caecidotea Isopod 1
Hirudinea Leech 1
Stenelmis 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.