MBSS Site Summary for: CORS-106-R-2000

Site Photos

Field photo showing stream conditions at site CORS-106-R-2000-01 (Opens in a new window) Field photo showing stream conditions at site CORS-106-R-2000-02 (Opens in a new window) Field photo showing stream conditions at site CORS-106-R-2000-03 (Opens in a new window)

Located on MILL STREAM 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 8/1/2000.

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 Good - 4.3 / 5.0
Benthic IBI Fair - 3.6 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 564 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 1.1 %
Agricultural Land Use 79.8 %
Forested Land Use 19.1 %


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

Physical Stream Habitat
Instream Habitat 15/20 (Suboptimal)
Epifaunal Substrate 12/20 (Suboptimal)
Velocity/Depth Diversity 10/20 (Marginal)
Pool Quality
Pool Extent = 42 meters 		10/20 (Marginal)
Riffle Quality
Riffle Extent = 39 meters 		16/20 (Optimal)
Shading 75 %
Embeddedness 50 %


Stream Water Quality:
Water temperature 24.6 ° C
Dissolved oxygen (DO) 5.6 mg/L
pH (lab) 6.93
Conductivity 160 µmho/cm
Alkalinity
(acid neutralizing capacity) 		555.5 µeq/L
Dissolved organic carbon (DOC) 9 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
Bluegill 121
Tessellated Darter 55
American Eel 48
Eastern Mudminnow 22
Creek Chubsucker 21
Fallfish 18
Largemouth Bass 11
Redfin Pickerel 9
Rosyside Dace 2
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Two-Lined Salamander
Pickerel 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
Gammarus Amphipod 28
Caecidotea Isopod 25
Cricotopus Non-Biting Midges 8
Micropsectra Non-Biting Midges 7
Parametriocnemus Non-Biting Midges 7
Cricotopus/Orthocladius Midge 7
Eukiefferiella Non-Biting Midges 5
Conchapelopia Non-Biting Midges 5
Pisidiidae Pill Clam 4
Orthocladiinae Midge 4
Physa Air-Breathing Freshwater Snail 2
Prodiamesa 1
Simuliidae Black Fly 1
Stenonema Flatheaded Mayfly 1
Dicranota Hairy-Eyed Cranefly 1
Dubiraphia Riffle Beetle 1
Polypedilum Non-Biting Midges 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.