MBSS Site Summary for: WEBR-106-R-2001

Site Photos

Field photo showing stream conditions at site WEBR-106-R-2001-32 (Opens in a new window) Field photo showing stream conditions at site WEBR-106-R-2001-33 (Opens in a new window) Field photo showing stream conditions at site WEBR-106-R-2001-34 (Opens in a new window) Field photo showing stream conditions at site WEBR-106-R-2001-35 (Opens in a new window) Field photo showing stream conditions at site WEBR-106-R-2001-36 (Opens in a new window)

Located on FOLLEY BR UT1 in the Western Branch watershed, 8-digit code: 02131103.
This stream was visited in the spring on 3/23/2001 and again in the summer on 6/14/2001.

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 - 2.0 / 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 391 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 46 %
Agricultural Land Use 19 %
Forested Land Use 32 %


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

Physical Stream Habitat
Instream Habitat 8/20 (Marginal)
Epifaunal Substrate 14/20 (Suboptimal)
Velocity/Depth Diversity 7/20 (Marginal)
Pool Quality
Pool Extent = 20 meters 		7/20 (Marginal)
Riffle Quality
Riffle Extent = 6 meters 		7/20 (Marginal)
Shading 92 %
Embeddedness 35 %


Stream Water Quality:
Water temperature 19.6 ° C
Dissolved oxygen (DO) 2.3 mg/L
Dissolved oxygen levels measured in the stream were very low (2.3 mg/L). Many fishes and other aquatic animals cannot tolerate low levels of oxygen in the water.
pH (lab) 7.12
Conductivity 240 µmho/cm
Alkalinity
(acid neutralizing capacity) 		620.3 µeq/L
Dissolved organic carbon (DOC) 10.4 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 4 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Bluegill 81
Eastern Mudminnow 10
American Eel 3
Yellow Bullhead 2
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Multiflora Rose
Tree Of Heaven
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Stegopterna Black Fly 83
Cricotopus/Orthocladius Midge 16
Prostoia Spring Stonefly 4
Parametriocnemus Non-Biting Midges 2
Rheocricotopus Non-Biting Midges 1
Lumbriculidae Worm 1
Physa Air-Breathing Freshwater Snail 1
Tubificidae Aquatic Worm 1
Simulium Black Fly 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.