MBSS Site Summary for: WILL-110-R-2004


Located on BRADDOCK RUN UT 2 in the Wills Creek watershed, 8-digit code: 02141003.
This stream was visited in the spring on 3/11/2004 and again in the summer on 6/1/2004.

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 Fair - 3.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 1,116 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 8 %
Agricultural Land Use 7 %
Forested Land Use 85 %


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 16/20 (Optimal)
Velocity/Depth Diversity 11/20 (Suboptimal)
Pool Quality
Pool Extent = 19 meters 		16/20 (Optimal)
Riffle Quality
Riffle Extent = 60 meters 		12/20 (Suboptimal)
Shading 60 %
Embeddedness 30 %


Stream Water Quality:
Water temperature 14.8 ° C
Dissolved oxygen (DO) 8.8 mg/L
pH (lab) 7.48
Conductivity 171 µmho/cm
Alkalinity
(acid neutralizing capacity) 		462.4 µeq/L
Dissolved organic carbon (DOC) 1.2 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 5 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 282
Creek Chub 4
Rosyside Dace 3
Pumpkinseed 1
White Sucker 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
Canada Thistle
Japanese Honeysuckle
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Diamesa Bloodworm 21
Ephemerella Sulphur Mayfly 15
Parametriocnemus Non-Biting Midges 14
Amphinemura Spring Stonefly 10
Neophylax Caddisfly 7
Prosimulium Black Fly 7
Tvetenia Non-Biting Midges 6
Prostoia Spring Stonefly 6
Perlodidae Perlodid Stonefly 4
Ameletus Combmouthed Minnow Mayfly 4
Caecidotea Isopod 4
Epeorus Mayfly 4
Orthocladiinae Midge 4
Parachaetocladius Non-Biting Midge 3
Gammarus Amphipod 2
Leuctridae Rolledwinged Stonefly 2
Capniidae Small Winter Stonefly 2
Sweltsa Stonefly 1
Polypedilum Non-Biting Midges 1
Rheocricotopus Non-Biting Midges 1
Baetidae Small Minnow Mayfly 1
Diamesinae Non-Biting Midges 1
Diplectrona Net-Spinning Caddisfly 1
Hexatoma Crane Fly 1
Tipula Crane Fly 1
Planariidae Flatworm 1
Acroneuria Golden Stoneflies 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.