MBSS Site Summary for: CORS-102-S-2010

Site Photos

Field photo showing stream conditions at site CORS-102-S-2010-1 (Opens in a new window) Field photo showing stream conditions at site CORS-102-S-2010-2 (Opens in a new window)

Located on UT Emory Creek in the Corsica River watershed, 8-digit code: 02130507.
This stream was visited in the spring on 4/3/2010 and again in the summer on 7/28/2010.

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 - 1.7 / 5.0
Benthic IBI Good - 4.1 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 639 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0 %
Agricultural Land Use 14.2 %
Forested Land Use 83.8 %


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

Physical Stream Habitat
Instream Habitat 10/20 (Marginal)
Epifaunal Substrate 9/20 (Marginal)
Velocity/Depth Diversity 8/20 (Marginal)
Pool Quality
Pool Extent = 55 meters 		8/20 (Marginal)
Riffle Quality
Riffle Extent = 0 meters 		0/20 (Poor)
Shading 90 %
Embeddedness 45 %


Stream Water Quality:
pH (lab) 6.455
Alkalinity
(acid neutralizing capacity) 		145.8 µeq/L
Dissolved organic carbon (DOC) 21.353 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 3 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Eastern Mosquitofish 13
Eastern Mudminnow 3
Golden Shiner 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Northern Green Frog
Pickerel Frog
Southern Leopard Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Stiltgrass
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Amphinemura Spring Stonefly 33
Prostoia Spring Stonefly 11
Amphipoda Scud 11
Leptophlebia Pronggilled Mayfly 6
Isoperla Stripetail Stonefly 5
Synurella Amphipod 4
Tubificidae Aquatic Worm 4
Orthocladiinae Midge 4
Paramerina Non-Biting Midge 3
Hydrobaenus Midge 3
Parametriocnemus Non-Biting Midges 2
Paraphaenocladius Non-Biting Midges 2
Rheocricotopus Non-Biting Midges 2
Musculium Fingernail Clam 2
Gordiidae Horsehair Worm 2
Caecidotea Isopod 2
Scirtidae Marsh Beetle 1
Rhyacophila Free-Living Caddisfly 1
Stegopterna Black Fly 1
Ameletus Combmouthed Minnow Mayfly 1
Perlidae Common Stonefly 1
Tipulidae Cranefly 1
Chrysops Deerfly 1
Thienemannimyia Group Non-Biting Midges 1
Limnephilidae Northern Casemaker Caddisfly 1
Perlodidae Perlodid Stonefly 1
Crangonyx Amphipod 1
Orthocladius Non-Biting Midges 1
Diptera True Fly 1
Limnodrilus Worm 1
Lumbriculidae Worm 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.