MBSS Site Summary for: SM-S-239-310-95


Located on ST CLEMENTS CR in the St. Clements Bay watershed, 8-digit code: 02140105.
This stream was visited in the spring on 3/16/1995 and again in the summer on 6/6/1995.

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 Good - 4.0 / 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 11,609 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 6.3 %
Agricultural Land Use 37.5 %
Forested Land Use 55.7 %


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

Physical Stream Habitat
Instream Habitat 16/20 (Optimal)
Epifaunal Substrate 11/20 (Suboptimal)
Velocity/Depth Diversity 14/20 (Suboptimal)
Pool Quality
Pool Extent = meters 		19/20 (Optimal)
Riffle Quality 16/20 (Optimal)
Shading 70 %
Embeddedness 60 %
The embeddedness, a measure of silt on the stream bottom, was 60%. This is relatively high, and may exclude some biota.
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 19.8 ° C
Dissolved oxygen (DO) 7.3 mg/L
pH (lab) 7.07
Conductivity 124 µmho/cm
Alkalinity
(acid neutralizing capacity) 		458 µeq/L
Dissolved organic carbon (DOC) 6 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 12 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Redbreast Sunfish 67
Tessellated Darter 53
Sea Lamprey 30
Bluegill 28
American Eel 24
Eastern Mudminnow 11
Least Brook Lamprey 11
Pumpkinseed 7
Fallfish 6
Pirate Perch 6
Largemouth Bass 5
Chain Pickerel 2
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Eastern Box Turtle
Southern Leopard Frog

Crayfish:
No crayfish noted.

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Ephemerella Sulphur Mayfly 50
Stenelmis Beetle 11
Isoperla Stripetail Stonefly 10
Ostrocerca Stonefly 9
Sphaerium Fingernail Clam 7
Optioservus Riffle Beetle 4
Macronychus Riffle Beetle 3
Cheumatopsyche Net-Spinning Caddisfly 3
Prosimulium Black Fly 2
Hexatoma Crane Fly 1
Strophopteryx Early Brown Stonefly 1
Tabanus Biting Horsefly 1
Conchapelopia Non-Biting Midges 1
Corynoneura Non-Biting Midges 1
Orthocladius Non-Biting Midges 1
Oulimnius Riffle Beetle 1
Stenonema Flatheaded Mayfly 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.