MBSS Site Summary for: STMA-113-R-2003

Site Photos

Field photo showing stream conditions at site STMA-113-R-2003-1 (Opens in a new window) Field photo showing stream conditions at site STMA-113-R-2003-4 (Opens in a new window) Field photo showing stream conditions at site STMA-113-R-2003-2 (Opens in a new window) Field photo showing stream conditions at site STMA-113-R-2003-5 (Opens in a new window) Field photo showing stream conditions at site STMA-113-R-2003-3 (Opens in a new window)

Located on CHURCH CR UT1 in the St. Mary's River watershed, 8-digit code: 02140103.
This stream was visited in the spring on 3/12/2003 and again in the summer on 6/10/2003.

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 - 2.3 / 5.0
Benthic IBI Poor - 1.9 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 487 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 4 %
Agricultural Land Use 14 %
Forested Land Use 81 %


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

Physical Stream Habitat
Instream Habitat 14/20 (Suboptimal)
Epifaunal Substrate 13/20 (Suboptimal)
Velocity/Depth Diversity 12/20 (Suboptimal)
Pool Quality
Pool Extent = 60 meters 		15/20 (Suboptimal)
Riffle Quality
Riffle Extent = 16 meters 		13/20 (Suboptimal)
Shading 92 %
Embeddedness 35 %


Stream Water Quality:
Water temperature 16.5 ° C
Dissolved oxygen (DO) 8.5 mg/L
pH (lab) 5.59
Conductivity 47 µmho/cm
Alkalinity
(acid neutralizing capacity) 		19.2 µeq/L
Dissolved organic carbon (DOC) 3.3 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 104
American Eel 9
Creek Chubsucker 9
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Prosimulium Black Fly 54
Stegopterna Black Fly 52
Allocapnia Small Winter Stonefly 5
Oulimnius Riffle Beetle 4
Asellidae Aquatic Sow Bug 2
Lumbriculidae Worm 1
Parametriocnemus Non-Biting Midges 1
Tanytarsini 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.