MBSS Site Summary for: MATT-101-A-2010

Site Photos

Located on Old Womans Creek in the Mattawoman Creek watershed, 8-digit code: 02140111.
This stream was visited in the spring on 4/17/2010 and again in the summer on 7/15/2010.

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 Fair - 3.7 / 5.0
Benthic IBI Good - 4.7 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 3,614 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 12.3 %
Agricultural Land Use 24 %
Forested Land Use 62.9 %


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

Physical Stream Habitat
Instream Habitat 17/20 (Optimal)
Epifaunal Substrate 14/20 (Suboptimal)
Velocity/Depth Diversity 12/20 (Suboptimal)
Pool Quality
Pool Extent = 49 meters 		15/20 (Suboptimal)
Riffle Quality
Riffle Extent = 36 meters 		11/20 (Suboptimal)
Shading 60 %
Embeddedness 30 %


Stream Water Quality:
pH (lab) 6.665
Alkalinity
(acid neutralizing capacity) 		145.8 µeq/L
Dissolved organic carbon (DOC) 2.5266 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 12 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 85
Creek Chub 15
Eastern Mudminnow 14
Tessellated Darter 12
Creek Chubsucker 11
White Sucker 11
American Eel 8
Sea Lamprey 3
Eastern Mosquitofish 1
Green Sunfish 1
Pirate Perch 1
Yellow Bullhead 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Northern Green Frog

Crayfish:
Cambarus diogenes
Orconectes limosus

Exotic Plants:
Japanese Stiltgrass
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Simulium Black Fly 21
Amphinemura Spring Stonefly 13
Chloroperlidae Green Stonefly 11
Plauditus Tiny Blue-Winged Olive Mayflies 10
Ephemerella Sulphur Mayfly 9
Haploperla Green Stonefly 8
Neophylax Caddisfly 4
Baetidae Small Minnow Mayfly 4
Ancyronyx Spider Riffle Beetle 3
Ephemerellidae Spiny Crawler Mayfly 3
Perlidae Common Stonefly 3
Isoperla Stripetail Stonefly 2
Oulimnius Riffle Beetle 2
Psephenus Water Penny 1
Agapetus Tiny Black Short-Horned Caddisfly 1
Hexatoma Crane Fly 1
Tipula Crane Fly 1
Neoplasta 1
Neoporus 1
Stenelmis Beetle 1
Maccaffertium March Brown And Cahill Mayfly 1
Cheumatopsyche Net-Spinning Caddisfly 1
Hydropsyche Net-Spinning Caddisfly 1
Polypedilum Non-Biting Midges 1
Tanytarsini Non-Biting Midges 1
Tanytarsus Non-Biting Midges 1
Ironoquia Northern Caddisfly 1
Dubiraphia Riffle Beetle 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.