MBSS Site Summary for: SAVA-276-S-2005


Located on Double Lick Run in the Savage River watershed, 8-digit code: 02141006.
This stream was visited in the spring on 4/21/2005 and again in the summer on 9/7/2005.

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 - 4.5 / 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 408 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 1.9 %
Agricultural Land Use 12 %
Forested Land Use 85.9 %


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

Physical Stream Habitat

Instream Habitat 12/20 (Suboptimal)
Epifaunal Substrate 15/20 (Suboptimal)
Velocity/Depth Diversity 7/20 (Marginal)
Pool Quality
Pool Extent = 48 meters
9/20 (Marginal)
Riffle Quality
Riffle Extent = 35 meters
10/20 (Marginal)
Shading 95 %
Embeddedness 25 %


Stream Water Quality:

Water temperature 11.9 ° C
Dissolved oxygen (DO) 9.5 mg/L
pH (lab) 6.82
Conductivity 52 µmho/cm
Alkalinity
(acid neutralizing capacity)
73.21249 µeq/L
Dissolved organic carbon (DOC) 0.5073 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 1 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blue Ridge Sculpin 9
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:

No amphibians and reptiles noted.

Crayfish:

No crayfish noted.

Exotic Plants:

No exotic plants noted.
 

Benthic Macroinvertebrates:

Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Ephemerella Sulphur Mayfly 30
Gammarus Amphipod 23
Epeorus Mayfly 13
Diamesa Bloodworm 7
Perlodidae Perlodid Stonefly 7
Cinygmula Dark Red Quill Mayfly 6
Leuctra  Rolled-Winged Stonefly 5
Rhyacophila Free-Living Caddisfly 3
Chloroperlidae Green Stonefly 3
Dicranota Hairy-Eyed Cranefly 3
Paraleptophlebia Blue Quill Mayfly 2
Synurella Amphipod 2
Leptophlebiidae Pronggilled Mayfly 2
Amphinemura Spring Stonefly 2
Chelifera Aquatic Dance Fly 1
Heptagenia 1
Malirekus 1
Baetis Blue-Winged Olive Mayfly 1
Drunella Blue-Winged Olive Mayfly 1
Dolophilodes Medium Evening Sedge Caddisfly 1
Pteronarcys Giant Stonefly 1
Isotomurus Elongate-Bodied Springtail 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.