MBSS Site Summary for: WILL-415-H-2010

Site Photos

Field photo showing stream conditions at site WILL-415-H-2010-1 (Opens in a new window) Field photo showing stream conditions at site WILL-415-H-2010-2 (Opens in a new window)

Located on Wills Creek in the Wills Creek watershed, 8-digit code: 02141003.
This stream was visited in the spring on 4/7/2010 and again in the summer on 7/28/2010.

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 N R
Benthic IBI Fair - 3.5 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 118,143 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 3.8 %
Agricultural Land Use 12.2 %
Forested Land Use 83.8 %


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

Physical Stream Habitat
Instream Habitat 15/20 (Suboptimal)
Epifaunal Substrate 16/20 (Optimal)
Velocity/Depth Diversity 14/20 (Suboptimal)
Pool Quality
Pool Extent = 52 meters 		12/20 (Suboptimal)
Riffle Quality
Riffle Extent = 24 meters 		16/20 (Optimal)
Shading 50 %
Embeddedness 10 %


Stream Water Quality:
pH (lab) 9.095
Alkalinity
(acid neutralizing capacity) 		531.1 µeq/L
Dissolved organic carbon (DOC) 1.1324 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:
Fish data is unavailable or no fish observed.

Amphibians and Reptiles:
No amphibians and reptiles noted.

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 66
Leptoxis Freshwater Snail 9
Stenacron Mayfly 4
Ephemerella Sulphur Mayfly 4
Eukiefferiella Non-Biting Midges 3
Isonychia Slate Drake Mayfly 2
Polycentropus Tube Maker Caddisfly 2
Cheumatopsyche Net-Spinning Caddisfly 2
Orthocladius Non-Biting Midges 2
Polypedilum Non-Biting Midges 2
Drunella Blue-Winged Olive Mayfly 2
Maccaffertium March Brown And Cahill Mayfly 2
Caenis Mayfly 2
Epeorus Mayfly 2
Eurylophella Mayfly 2
Neophylax Caddisfly 1
Chimarra Fingernet Caddisfly 1
Pseudorthocladius Non-Biting Midges 1
Dubiraphia Riffle Beetle 1
Acroneuria Golden Stoneflies 1
Oecetis Long-Horned Caddisfly 1
Ceratopsyche 1
Hemerodromia Tiny Fly 1
Capniidae Small Winter Stonefly 1
Prostoia Spring Stonefly 1
Microtendipes Non-Biting Midges 1
Nanocladius 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.