MBSS Site Summary for: LIBE-102-R-2003

Site Photos

Field photo showing stream conditions at site LIBE-102-R-2003-645 (Opens in a new window) Field photo showing stream conditions at site LIBE-102-R-2003-646 (Opens in a new window)

Located on NORRIS RUN UT1 in the Liberty Reservoir watershed, 8-digit code: 02130907.
This stream was visited in the spring on 3/6/2003 and again in the summer on 6/12/2003.

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 Poor - 1.0 / 5.0
Benthic IBI Fair - 3.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 71 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 24 %
Agricultural Land Use 50 %
Forested Land Use 26 %


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

Physical Stream Habitat
Instream Habitat 7/20 (Marginal)
Epifaunal Substrate 6/20 (Marginal)
Velocity/Depth Diversity 6/20 (Marginal)
Pool Quality
Pool Extent = 45 meters 		7/20 (Marginal)
Riffle Quality
Riffle Extent = 30 meters 		6/20 (Marginal)
Shading 80 %
Embeddedness 60 %
The embeddedness, a measure of silt on the stream bottom, was 60%. This is relatively high, and may exclude some biota.


Stream Water Quality:
Water temperature 14.4 ° C
Dissolved oxygen (DO) 7.8 mg/L
pH (lab) 6.88
Conductivity 501 µmho/cm
Alkalinity
(acid neutralizing capacity) 		607.7 µeq/L
Dissolved organic carbon (DOC) 4.4 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 2 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 16
Creek Chub 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Red Salamander
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
Common Reed (Phragmites)
Japanese Honeysuckle
Mile-A-Minute
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Parametriocnemus Non-Biting Midges 27
Pseudolimnophila Crane Fly 17
Neophylax Caddisfly 10
Anchytarsus Beetle 8
Tanytarsus Non-Biting Midges 8
Lumbriculidae Worm 7
Diplectrona Net-Spinning Caddisfly 5
Ormosia Cranefly 4
Chrysops Deerfly 3
Lepidostoma Little Brown Sedge Caddisfly 3
Ceratopogon Biting Midge 3
Thienemannimyia Non-Biting Midges 3
Dicranota Hairy-Eyed Cranefly 2
Rhyacophila Free-Living Caddisfly 2
Pycnopsyche Great Autumn Brown Sedge Caddisfly 1
Dolichopodidae Long-Legged Fly 1
Probezzia Biting Midges 1
Stegopterna Black Fly 1
Tipula Crane Fly 1
Tabanus Biting Horsefly 1
Malirekus 1
Tubificidae Aquatic Worm 1
Trissopelopia Non-Biting Midges 1
Limnephilidae Northern Casemaker Caddisfly 1
Polycentropus Tube Maker Caddisfly 1
Orthocladius 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.