MBSS Site Summary for: GEOR-101-D-2012

Site Photos

Field photo showing stream conditions at site GEOR-101-D-2012-1 (Opens in a new window) Field photo showing stream conditions at site GEOR-101-D-2012-2 (Opens in a new window)

Located on MILL RUN in the Georges Creek watershed, 8-digit code: 02141004.
This stream was visited in the spring on 3/12/2012 and again in the summer on 6/19/2012.

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 1,145 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 3.4 %
Agricultural Land Use 6.8 %
Forested Land Use 84.7 %


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 = 28 meters 		10/20 (Marginal)
Riffle Quality
Riffle Extent = 47 meters 		15/20 (Suboptimal)
Shading 75 %
Embeddedness 0 %


Stream Water Quality:
pH (lab) 6.05
Alkalinity
(acid neutralizing capacity) 		12.6 µeq/L
Dissolved organic carbon (DOC) 1.0808 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
No Fish Observed 0
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern American Toad
Eastern Red Spotted Newt
Wood Frog

Crayfish:
Cambarus bartonii bartonii

Exotic Plants:
No Exotic Plants Observed
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Caecidotea Isopod 17
LEUCTRIDAE Rolledwinged Stonefly 15
Ostrocerca Stonefly 13
Amphinemura Spring Stonefly 10
Prosimulium Black Fly 8
Leuctra  Rolled-Winged Stonefly 6
Rhyacophila Free-Living Caddisfly 6
NEMOURIDAE Nemourid Stonefly 6
Neophylax Caddisfly 5
Pseudorthocladius Non-Biting Midges 4
Peltoperla 3
Wormaldia Fingernet Caddisfly 3
LUMBRICULIDAE Worm 2
Ameletus Combmouthed Minnow Mayfly 2
Thienemannimyia Group Non-Biting Midges 2
Lepidostoma Little Brown Sedge Caddisfly 2
Diplectrona Net-Spinning Caddisfly 2
Micropsectra Non-Biting Midges 1
Orthocladius Non-Biting Midges 1
Polypedilum Non-Biting Midges 1
Maccaffertium March Brown And Cahill Mayfly 1
PERLODIDAE Perlodid Stonefly 1
PHILOPOTAMIDAE Fingernet Caddisfly 1
CHLOROPERLIDAE Green Stonefly 1
Dicranota Hairy-Eyed Cranefly 1
Stegopterna Black Fly 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.