MBSS Site Summary for: CN-N-031-122-95


Located on TOMMY WRIGHT BR in the Marshyhope Creek watershed, 8-digit code: 02130306.
This stream was visited in the spring on 3/3/1995 and again in the summer on 7/6/1995.

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 - 3.7 / 5.0
Benthic IBI Poor - 2.1 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 2,046 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 0.1 %
Agricultural Land Use 62.2 %
Forested Land Use 37.7 %


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 5/20 (Poor)
Velocity/Depth Diversity 6/20 (Marginal)
Pool Quality
Pool Extent = meters 		11/20 (Suboptimal)
Riffle Quality 0/20 (Poor)
Shading 10 %
Embeddedness 100 %
The embeddedness, a measure of silt on the stream bottom, was 100%. This is very high, and may adversely affect biotic communities.


Stream Water Quality:
Water temperature 25.5 ° C
Dissolved oxygen (DO) 9.3 mg/L
pH (lab) 6.52
Conductivity 128 µmho/cm
Alkalinity
(acid neutralizing capacity) 		212.7 µeq/L
Dissolved organic carbon (DOC) 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 11 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Bluegill 80
Eastern Mudminnow 25
Pirate Perch 19
Creek Chubsucker 7
Brown Bullhead 4
Largemouth Bass 4
Chain Pickerel 2
Golden Shiner 2
Yellow Bullhead 2
Tadpole Madtom 1
Tessellated Darter 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern Snapping Turtle

Crayfish:
No crayfish noted.

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Cricotopus Non-Biting Midges 54
Oxyethira Microcaddisfly 19
Gammarus Amphipod 8
Rheotanytarsus Non-Biting Midges 8
Crangonyx Amphipod 6
Triaenodes Long-Horned Caddisfly 3
Limnephilidae Northern Casemaker Caddisfly 2
Thienemanniella Non-Biting Midges 1
Cheumatopsyche Net-Spinning Caddisfly 1
Corynoneura 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.