MBSS Site Summary for: CORS-102-R-2000

Site Photos

Field photo showing stream conditions at site CORS-102-R-2000-01 (Opens in a new window) Field photo showing stream conditions at site CORS-102-R-2000-02 (Opens in a new window)

Located on KIRBY CR UT1 in the Corsica River watershed, 8-digit code: 02130507.
This stream was visited in the spring on 4/12/2000 and again in the summer on 8/3/2000.

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 569 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0.1 %
Agricultural Land Use 10 %
Forested Land Use 89.9 %


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 8/20 (Marginal)
Velocity/Depth Diversity 8/20 (Marginal)
Pool Quality
Pool Extent = 43 meters 		9/20 (Marginal)
Riffle Quality
Riffle Extent = 37 meters 		12/20 (Suboptimal)
Shading 80 %
Embeddedness 40 %


Stream Water Quality:
Water temperature 22.2 ° C
Dissolved oxygen (DO) 5.9 mg/L
pH (lab) 6.35
Conductivity 90 µmho/cm
Alkalinity
(acid neutralizing capacity) 		183 µeq/L
Dissolved organic carbon (DOC) 17.4 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 Mudminnow 37
Redfin Pickerel 6
American Eel 3
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog
Southern Leopard Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Thienemanniella Non-Biting Midges 16
Crangonyctidae Scud 12
Corynoneura Non-Biting Midges 12
Rheocricotopus Non-Biting Midges 11
Naididae Aquatic Worm 9
Stegopterna Black Fly 6
Caecidotea Isopod 6
Amphinemura Spring Stonefly 6
Tanytarsus Non-Biting Midges 4
Tubificidae Aquatic Worm 4
Ameletus Combmouthed Minnow Mayfly 3
Zavrelimyia Non-Biting Midges 3
Dytiscidae Predaceous Diving Beetle 2
Prosimulium Black Fly 2
Simuliidae Black Fly 2
Simulium Black Fly 2
Chironomus Non-Biting Midges 2
Physa Air-Breathing Freshwater Snail 2
Cricotopus Non-Biting Midges 2
Dicrotendipes Non-Biting Midges 1
Polypedilum Non-Biting Midges 1
Enchytraeidae Aquatic Worm 1
Conchapelopia Non-Biting Midges 1
Heleniella European Non-Biting Midge 1
Pycnopsyche Great Autumn Brown Sedge Caddisfly 1
Leptophlebia Pronggilled Mayfly 1
Ironoquia Northern Caddisfly 1
Limnephilidae Northern Casemaker Caddisfly 1
Perlodidae Perlodid Stonefly 1
Pisidiidae Pill Clam 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.