MBSS Site Summary for: CORS-107-R-2000

Site Photos

Field photo showing stream conditions at site CORS-107-R-2000-01 (Opens in a new window) Field photo showing stream conditions at site CORS-107-R-2000-02 (Opens in a new window)

Located on THREE BRIDGES BR 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 8/2/2000.

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 Fair - 3.0 / 5.0
Benthic IBI Fair - 3.9 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 1,105 acres Cows standing in a stream at a site with high agricultural land use. Cows survey the sampling procedure at this extreme example of a highly agriculturalized site.
Urban Land Use 0.7 %
Agricultural Land Use 71.5 %
Forested Land Use 27.5 %


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

Physical Stream Habitat
Instream Habitat 11/20 (Suboptimal)
Epifaunal Substrate 10/20 (Marginal)
Velocity/Depth Diversity 11/20 (Suboptimal)
Pool Quality
Pool Extent = 72 meters 		8/20 (Marginal)
Riffle Quality
Riffle Extent = 11 meters 		11/20 (Suboptimal)
Shading 65 %
Embeddedness 50 %


Stream Water Quality:
Water temperature 24.3 ° C
Dissolved oxygen (DO) 5.9 mg/L
pH (lab) 7.16
Conductivity 210 µmho/cm
Alkalinity
(acid neutralizing capacity) 		852.1 µeq/L
Dissolved organic carbon (DOC) 11.2 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 9 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Tessellated Darter 199
Eastern Mudminnow 35
American Eel 23
Redfin Pickerel 6
Pirate Perch 5
Bluegill 3
Fallfish 2
Largemouth Bass 1
White Sucker 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Northern Green 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
Caecidotea Isopod 48
Eukiefferiella Non-Biting Midges 13
Tanytarsus Non-Biting Midges 8
Polypedilum Non-Biting Midges 5
Hydroporus Water Beetle 4
Corynoneura Non-Biting Midges 4
Gammarus Amphipod 4
Tubificidae Aquatic Worm 4
Paratendipes European Non-Biting Midge 3
Pisidiidae Pill Clam 3
Rheocricotopus Non-Biting Midges 2
Physa Air-Breathing Freshwater Snail 2
Conchapelopia Non-Biting Midges 2
Ablabesmyia Non-Biting Midge 2
Clinotanypus Non-Biting Midge 1
Stictochironomus Non-Biting Midge 1
Brillia Non-Biting Midges 1
Paratanytarsus Non-Biting Midges 1
Dicranota Hairy-Eyed Cranefly 1
Stenacron Mayfly 1
Simulium Black Fly 1
Pseudolimnophila Crane Fly 1
Calopteryx Damselfly 1
Tanypodinae Non-Biting Midges 1
Zavrelimyia Non-Biting Midges 1
Isoperla Stripetail Stonefly 1
Hydrobius Water Scavenger Beetle 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.