MBSS Site Summary for: SAVA-276-S-2007

Site Photos

Field photo showing stream conditions at site SAVA-276-S-2007-1 (Opens in a new window) Field photo showing stream conditions at site SAVA-276-S-2007-2 (Opens in a new window)

Located on Double Lick Run in the Savage River watershed, 8-digit code: 02141006.
This stream was visited in the spring on 4/23/2007 and again in the summer on 6/19/2007.

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 - 4.5 / 5.0
Benthic IBI Good - 4.5 / 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 18/20 (Optimal)
Epifaunal Substrate 17/20 (Optimal)
Velocity/Depth Diversity 10/20 (Marginal)
Pool Quality
Pool Extent = 22 meters 		10/20 (Marginal)
Riffle Quality
Riffle Extent = 74 meters 		16/20 (Optimal)
Shading 95 %
Embeddedness 40 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 11.9 ° C
Dissolved oxygen (DO) 8.8 mg/L
pH (lab) 6.81
Conductivity 44 µmho/cm
Alkalinity
(acid neutralizing capacity) 		53.96 µeq/L
Dissolved organic carbon (DOC) 0.464 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 13
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Dusky Salamander
Seal Salamander

Crayfish:
Cambaridae
Cambarus bartonii bartonii

Exotic Plants:
No Exotic Plants Observed
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Epeorus Mayfly 31
Ephemerella Sulphur Mayfly 12
Chloroperlidae Green Stonefly 6
Ephemerellidae Spiny Crawler Mayfly 6
Leuctra  Rolled-Winged Stonefly 6
Gammarus Amphipod 6
Amphinemura Spring Stonefly 5
Pteronarcys Giant Stonefly 5
Drunella Blue-Winged Olive Mayfly 3
Diamesa Bloodworm 2
Cinygmula Dark Red Quill Mayfly 2
Wormaldia Fingernet Caddisfly 1
Heptageniidae Flathead Mayfly 1
Rhyacophila Free-Living Caddisfly 1
Micropsectra Non-Biting Midges 1
Parametriocnemus Non-Biting Midges 1
Perlodidae Perlodid Stonefly 1
Parapsyche 1
Ameletus Combmouthed Minnow Mayfly 1
Hexatoma Crane Fly 1
Chelifera Aquatic Dance Fly 1
Probezzia Biting Midges 1
Isoperla Stripetail Stonefly 1
Dicranota Hairy-Eyed Cranefly 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.