MBSS Site Summary for: SAVA-276-S-2004


Located on DOUBLE LICK RUN in the Savage River watershed, 8-digit code: 02141006.
This stream was visited in the spring on 4/19/2004 and again in the summer on 7/22/2004.

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 - 3.8 / 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 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 10/20 (Marginal)
Pool Quality
Pool Extent = 42 meters
10/20 (Marginal)
Riffle Quality
Riffle Extent = 45 meters
13/20 (Suboptimal)
Shading 96 %
Embeddedness 30 %


Stream Water Quality:

Water temperature 12.3 ° C
Dissolved oxygen (DO) 8.1 mg/L
pH (lab) 6.86
Conductivity 50 µmho/cm
Alkalinity
(acid neutralizing capacity)
55 µeq/L
Dissolved organic carbon (DOC) 0.2 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 1 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blue Ridge Sculpin 19
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 42
Gammarus Amphipod 26
Leuctra  Rolled-Winged Stonefly 12
Malirekus 6
Chloroperlidae Green Stonefly 4
Epeorus Mayfly 4
Rhyacophila Free-Living Caddisfly 3
Baetis Blue-Winged Olive Mayfly 3
Perlodidae Perlodid Stonefly 3
Amphinemura Spring Stonefly 2
Lumbriculidae Worm 2
Diamesa Bloodworm 2
Parapsyche 1
Drunella Blue-Winged Olive Mayfly 1
Wormaldia Fingernet Caddisfly 1
Heptageniidae Flathead Mayfly 1
Pteronarcys Giant Stonefly 1
Dicranota Hairy-Eyed Cranefly 1
Eukiefferiella Non-Biting Midges 1
Parametriocnemus Non-Biting Midges 1
Paraphaenocladius Non-Biting Midges 1
Tanytarsini Non-Biting Midges 1
Alloperla Stonefly 1
Oulimnius Riffle 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.