MBSS Site Summary for: WILL-102-C-2000

Site Photos

Field photo showing stream conditions at site WILL-102-C-2000-01 (Opens in a new window) Field photo showing stream conditions at site WILL-102-C-2000-02 (Opens in a new window)

Located on HAZEN RUN in the Evitts Creek watershed, 8-digit code: 02141002.
This stream was visited in the spring on 4/12/2000 and again in the summer on 6/1/2000.

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 - 4.0 / 5.0
Benthic IBI Fair - 3.5 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 560 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0 %
Agricultural Land Use 1.4 %
Forested Land Use 98.6 %


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

Physical Stream Habitat
Instream Habitat 19/20 (Optimal)
Epifaunal Substrate 19/20 (Optimal)
Velocity/Depth Diversity 9/20 (Marginal)
Pool Quality
Pool Extent = 40 meters 		16/20 (Optimal)
Riffle Quality
Riffle Extent = 70 meters 		20/20 (Optimal)
Shading 70 %
Embeddedness 15 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 12.5 ° C
Dissolved oxygen (DO) 7.5 mg/L
pH (lab) 7.94
Conductivity 150 µmho/cm
Alkalinity
(acid neutralizing capacity) 		1264 µeq/L
Dissolved organic carbon (DOC) 1.6 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
Blue Ridge Sculpin 304
Rainbow Trout 4
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Dusky Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Epeorus Mayfly 46
Baetis Blue-Winged Olive Mayfly 21
Amphinemura Spring Stonefly 10
Optioservus Riffle Beetle 8
Gammarus Amphipod 7
Cricotopus/Orthocladius Midge 5
Diamesa Bloodworm 4
Oulimnius Riffle Beetle 2
Antocha Crane Fly 2
Ephemerella Sulphur Mayfly 1
Micropsectra Non-Biting Midges 1
Leptophlebiidae Pronggilled Mayfly 1
Chelifera Aquatic Dance Fly 1
Parapsyche 1
Leuctra  Rolled-Winged Stonefly 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.