MBSS Site Summary for: WEBR-105-R-2001

Site Photos

Field photo showing stream conditions at site WEBR-105-R-2001-147 (Opens in a new window) Field photo showing stream conditions at site WEBR-105-R-2001-148 (Opens in a new window)

Located on BACK BR in the Western Branch watershed, 8-digit code: 02131103.
This stream was visited in the spring on 3/27/2001 and again in the summer on 7/25/2001.

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 Good - 4.7 / 5.0
Benthic IBI Fair - 3.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 1,701 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 22 %
Agricultural Land Use 33 %
Forested Land Use 45 %


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

Physical Stream Habitat
Instream Habitat 13/20 (Suboptimal)
Epifaunal Substrate 14/20 (Suboptimal)
Velocity/Depth Diversity 12/20 (Suboptimal)
Pool Quality
Pool Extent = 65 meters 		13/20 (Suboptimal)
Riffle Quality
Riffle Extent = 11 meters 		7/20 (Marginal)
Shading 85 %
Embeddedness 20 %


Stream Water Quality:
Water temperature 22.2 ° C
Dissolved oxygen (DO) 7.2 mg/L
pH (lab) 7.16
Conductivity 240 µmho/cm
Alkalinity
(acid neutralizing capacity) 		261.3 µeq/L
Dissolved organic carbon (DOC) 1.6 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 13 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Rosyside Dace 110
Blacknose Dace 93
Tessellated Darter 50
Fallfish 37
Creek Chub 30
Eastern Mudminnow 28
Least Brook Lamprey 24
White Sucker 15
Pumpkinseed 5
American Eel 4
Sea Lamprey 4
Creek Chubsucker 1
Redfin Pickerel 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

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

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Japanese Stiltgrass
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Orthocladiinae A Non-Biting Midges 60
Parametriocnemus Non-Biting Midges 10
Gammarus Amphipod 6
Cheumatopsyche Net-Spinning Caddisfly 5
Boyeria Spotted Darner Dragonfly 3
Ephemerella Sulphur Mayfly 3
Conchapelopia Non-Biting Midges 2
Stenonema Flatheaded Mayfly 2
Orthocladiinae Midge 1
Chelifera Aquatic Dance Fly 1
Tipula Crane Fly 1
Polypedilum Non-Biting Midges 1
Tanypodinae Non-Biting Midges 1
Thienemanniella Non-Biting Midges 1
Amphipoda Scud 1
Prostoia Spring Stonefly 1
Isoperla Stripetail Stonefly 1
Hydropsyche Net-Spinning Caddisfly 1
Brillia 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.