MBSS Site Summary for: WEBR-113-R-2001

Site Photos

Field photo showing stream conditions at site WEBR-113-R-2001-154 (Opens in a new window) Field photo showing stream conditions at site WEBR-113-R-2001-155 (Opens in a new window) Field photo showing stream conditions at site WEBR-113-R-2001-156 (Opens in a new window)

Located on COLLINGTON BR UT4 in the Western Branch watershed, 8-digit code: 02131103.
This stream was visited in the spring on 3/28/2001 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 - 2.7 / 5.0
Benthic IBI Poor - 2.4 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 289 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 36 %
Agricultural Land Use 45 %
Forested Land Use 18 %


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

Physical Stream Habitat
Instream Habitat 12/20 (Suboptimal)
Epifaunal Substrate 12/20 (Suboptimal)
Velocity/Depth Diversity 11/20 (Suboptimal)
Pool Quality
Pool Extent = 72 meters 		15/20 (Suboptimal)
Riffle Quality
Riffle Extent = 3 meters 		6/20 (Marginal)
Shading 70 %
Embeddedness 35 %


Stream Water Quality:
Water temperature 20.5 ° C
Dissolved oxygen (DO) 8.2 mg/L
pH (lab) 7.22
Conductivity 440 µmho/cm
Alkalinity
(acid neutralizing capacity) 		1233 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 6 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Bluegill 169
Golden Shiner 100
Pumpkinseed 56
Blacknose Dace 15
Brown Bullhead 14
Tessellated Darter 3
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog
Northern Two-Lined Salamander
Pickerel Frog
Southern Leopard Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Polypedilum Non-Biting Midges 18
Cricotopus/Orthocladius Midge 14
Rheosmittia Non-Biting Midges 13
Conchapelopia Non-Biting Midges 10
Cheumatopsyche Net-Spinning Caddisfly 7
Calopteryx Damselfly 6
Gammarus Amphipod 4
Naididae Aquatic Worm 4
Chaetocladius Non-Biting Midges 4
Thienemannimyia group Non-Biting Midges 4
Ironoquia Northern Caddisfly 4
Tubificidae Aquatic Worm 3
Tipula Crane Fly 2
Enchytraeidae Aquatic Worm 2
Larsia Non-Biting Midge 2
Micropsectra Non-Biting Midges 2
Parametriocnemus Non-Biting Midges 2
Limnodrilus Worm 2
Phaenopsectra Non-Biting Midges 1
Nanocladius Non-Biting Midges 1
Endochironomus 1
Limnephilidae Northern Casemaker Caddisfly 1
Pyralidae Snout Moth 1
Hydroporus Water Beetle 1
Isotomurus Elongate-Bodied Springtail 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.