MBSS Site Summary for: WOLF-201-N-2004


Located on WOLFTRAP CR in the watershed, 8-digit code: .
This stream was visited in the spring on 3/9/2004 and again in the summer on 6/14/2004.

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 N R
Benthic IBI N R

Land Use

Land use can provide important information for determining stream health.
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Catchment area 2,330 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 66 %
Agricultural Land Use 10 %
Forested Land Use 22 %


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 15/20 (Suboptimal)
Velocity/Depth Diversity 14/20 (Suboptimal)
Pool Quality
Pool Extent = 54 meters 		16/20 (Optimal)
Riffle Quality
Riffle Extent = 36 meters 		12/20 (Suboptimal)
Shading 88 %
Embeddedness 35 %


Stream Water Quality:
Water temperature 19.5 ° C
Dissolved oxygen (DO) 8.2 mg/L
pH (lab) 7.57
Alkalinity
(acid neutralizing capacity) 		614 µeq/L
Dissolved organic carbon (DOC) 2.6 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 14 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 79
Longnose Dace 18
White Sucker 18
Tessellated Darter 15
Rosyside Dace 10
Bluegill 7
Creek Chub 7
Swallowtail Shiner 6
Yellow Bullhead 6
American Eel 4
Green Sunfish 3
Pumpkinseed 3
Largemouth Bass 2
Central Stoneroller 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern Snapping Turtle
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Stiltgrass
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Cheumatopsyche Net-Spinning Caddisfly 42
Stenelmis Beetle 13
Hydropsyche Net-Spinning Caddisfly 10
Orthocladius Non-Biting Midges 4
Hydrobaenus Midge 4
Lumbriculidae Worm 4
Brillia Non-Biting Midges 3
Diamesa Bloodworm 3
Antocha Crane Fly 2
Calopteryx Damselfly 2
Eukiefferiella Non-Biting Midges 2
Ancyronyx Spider Riffle Beetle 2
Rheosmittia Non-Biting Midges 1
Tvetenia Non-Biting Midges 1
Crangonyctidae Scud 1
Prostoma Freshwater Nemertean (Ribbon Worm) 1
Stylogomphus Clubtail Dragonfly 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.