MBSS Site Summary for: LIBE-251-A-2007

Site Photos

Field photo showing stream conditions at site LIBE-251-A-2007-1 (Opens in a new window) Field photo showing stream conditions at site LIBE-251-A-2007-2 (Opens in a new window)

Located on Deep Run in the Liberty Reservoir watershed, 8-digit code: 02130907.
This stream was visited in the spring on 3/14/2007 and again in the summer on 7/19/2007.

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 Fair - 3.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
(Hint: Screen readers will announce definitions; mouse users can hover over dotted text.)
Catchment area 4,525 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 3.7 %
Agricultural Land Use 74.8 %
Forested Land Use 21.1 %


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

Physical Stream Habitat
Instream Habitat 16/20 (Optimal)
Epifaunal Substrate 16/20 (Optimal)
Velocity/Depth Diversity 16/20 (Optimal)
Pool Quality
Pool Extent = 40 meters 		17/20 (Optimal)
Riffle Quality
Riffle Extent = 35 meters 		16/20 (Optimal)
Shading 80 %
Embeddedness 20 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 20.9 ° C
Dissolved oxygen (DO) 9.1 mg/L
pH (lab) 7.2
Conductivity 198 µmho/cm
Alkalinity
(acid neutralizing capacity) 		405.1 µeq/L
Dissolved organic carbon (DOC) 1.4898 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 12 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blue Ridge Sculpin 395
Central Stoneroller 100
Rosyside Dace 80
Longnose Dace 57
Blacknose Dace 38
Cutlip Minnow 38
White Sucker 22
Common Shiner 16
Tessellated Darter 6
Creek Chub 5
Brown Trout 4
Largemouth Bass 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog
Northern Red Salamander
Northern Two-Lined Salamander
Pickerel Frog
Wood Frog

Crayfish:
Orconectes virilis

Exotic Plants:
Autumn Olive
Garlic Mustard
Japanese Honeysuckle
Japanese Hops
Japanese Stiltgrass
Mile-A-Minute
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Orthocladius Non-Biting Midges 34
Prosimulium Black Fly 16
Isonychia Slate Drake Mayfly 12
Parametriocnemus Non-Biting Midges 5
Orthocladiinae Midge 3
Hydropsyche Net-Spinning Caddisfly 3
Strophopteryx Early Brown Stonefly 3
Chimarra Fingernet Caddisfly 2
Stenonema Flatheaded Mayfly 2
Antocha Crane Fly 2
Tipula Crane Fly 2
Brillia Non-Biting Midges 2
Cheumatopsyche Net-Spinning Caddisfly 2
Sympotthastia Non-Biting Midges 2
Ephemerella Sulphur Mayfly 2
Synorthocladius 1
Tvetenia Non-Biting Midges 1
Rheosmittia Non-Biting Midges 1
Corynoneura Non-Biting Midges 1
Neophylax Caddisfly 1
Stylogomphus Clubtail Dragonfly 1
Dicranota Hairy-Eyed Cranefly 1
Dolophilodes Medium Evening Sedge 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.