MBSS Site Summary for: CORS-102-S-2001

Site Photos

Field photo showing stream conditions at site CORS-102-S-2001-1 (Opens in a new window) Field photo showing stream conditions at site CORS-102-S-2001-2 (Opens in a new window) Field photo showing stream conditions at site CORS-102-S-2001-3 (Opens in a new window)

Located on EMORY CR UT1 in the Corsica River watershed, 8-digit code: 02130507.
This stream was visited in the spring on 3/29/2001 and again in the summer on 7/5/2001.

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 - 2.0 / 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 654 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0 %
Agricultural Land Use 16.9 %
Forested Land Use 80.5 %


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

Physical Stream Habitat
Instream Habitat 8/20 (Marginal)
Epifaunal Substrate 9/20 (Marginal)
Velocity/Depth Diversity 9/20 (Marginal)
Pool Quality
Pool Extent = 60 meters 		13/20 (Suboptimal)
Riffle Quality
Riffle Extent = 15 meters 		8/20 (Marginal)
Shading 92 %
Embeddedness 60 %
The embeddedness, a measure of silt on the stream bottom, was 60%. This is relatively high, and may exclude some biota.


Stream Water Quality:
Water temperature 22.9 ° C
Dissolved oxygen (DO) 5.2 mg/L
pH (lab) 6.56
Conductivity 130 µmho/cm
Alkalinity
(acid neutralizing capacity) 		193.3 µeq/L
Dissolved organic carbon (DOC) 8.7 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 2 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Eastern Mudminnow 168
Redfin Pickerel 5
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Northern Green Frog
Northern Spring Peeper

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Prosimulium Black Fly 32
Stegopterna Black Fly 15
Zavrelimyia Non-Biting Midges 7
Parametriocnemus Non-Biting Midges 6
Orthocladius Non-Biting Midges 5
Cricotopus/Orthocladius Midge 4
Physa Air-Breathing Freshwater Snail 4
Tanypodinae Non-Biting Midges 3
Tanytarsus Non-Biting Midges 2
Rheocricotopus Non-Biting Midges 2
Micropsectra Non-Biting Midges 2
Microtendipes Non-Biting Midges 2
Leptophlebia Pronggilled Mayfly 2
Gammarus Amphipod 2
Simuliidae Black Fly 2
Sphaerium Fingernail Clam 2
Cheumatopsyche Net-Spinning Caddisfly 2
Chironomini Non-Biting Midge 1
Conchapelopia Non-Biting Midges 1
Eukiefferiella Non-Biting Midges 1
Wormaldia Fingernet Caddisfly 1
Scirtidae Marsh Beetle 1
Tipula Crane Fly 1
Endochironomus 1
Planorbella 1
Synurella Amphipod 1
Tubificidae Aquatic Worm 1
Tabanus Biting Horsefly 1
Prostoia Spring Stonefly 1
Lumbriculidae Worm 1
Hydrobaenus Midge 1
Nemouridae Nemourid Stonefly 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.