MBSS Site Summary for: MATT-101-A-2012

Site Photos

Field photo showing stream conditions at site MATT-101-A-2012-1 (Opens in a new window) Field photo showing stream conditions at site MATT-101-A-2012-2 (Opens in a new window)

Located on OLD WOMANS RUN in the Mattawoman Creek watershed, 8-digit code: 02140111.
This stream was visited in the spring on 3/6/2012 and again in the summer on 6/7/2012.

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 - 3.0 / 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 3,523 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 19.8 %
Agricultural Land Use 10.8 %
Forested Land Use 66.9 %


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

Physical Stream Habitat
Instream Habitat 11/20 (Suboptimal)
Epifaunal Substrate 16/20 (Optimal)
Velocity/Depth Diversity 11/20 (Suboptimal)
Pool Quality
Pool Extent = 54 meters 		12/20 (Suboptimal)
Riffle Quality
Riffle Extent = 28 meters 		8/20 (Marginal)
Shading 80 %
Embeddedness 40 %


Stream Water Quality:
pH (lab) 6.66
Alkalinity
(acid neutralizing capacity) 		139 µeq/L
Dissolved organic carbon (DOC) 1.117 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 9 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 57
White Sucker 36
American Eel 33
Green Sunfish 5
Eastern Mudminnow 4
Tessellated Darter 2
Least Brook Lamprey 1
Pirate Perch 1
Sea Lamprey 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern Ratsnake
Northern Green Frog
Pickerel Frog
Upland Chorus Frog

Crayfish:
Cambarus bartonii bartonii
Orconectes limosus

Exotic Plants:
Japanese Honeysuckle
Japanese Stiltgrass
Mile-A-Minute
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
EPHEMERELLIDAE Spiny Crawler Mayfly 22
Acerpenna Tiny Blue-Winged Olive Mayflies 21
Ephemerella Sulphur Mayfly 19
Amphinemura Spring Stonefly 12
Isoperla Stripetail Stonefly 5
Polypedilum Non-Biting Midges 3
Synurella Amphipod 3
Haploperla Green Stonefly 3
Strophopteryx Early Brown Stonefly 2
Maccaffertium March Brown And Cahill Mayfly 2
Corynoneura Non-Biting Midges 2
Orthocladius Non-Biting Midges 1
Parametriocnemus Non-Biting Midges 1
Agapetus Tiny Black Short-Horned Caddisfly 1
Rheocricotopus Non-Biting Midges 1
Rheotanytarsus Non-Biting Midges 1
Stempellinella Non-Biting Midges 1
Tanypodinae Non-Biting Midges 1
Tanytarsus Non-Biting Midges 1
Thienemanniella Non-Biting Midges 1
Oulimnius Riffle Beetle 1
BAETIDAE Small Minnow Mayfly 1
Caenis Mayfly 1
Orthocladiinae Midge 1
NEMOURIDAE Nemourid Stonefly 1
Perlesta 1
Clioperla Green-Winged Stonefly 1
Triaenodes Long-Horned Caddisfly 1
Spirosperma Aquatic Oligochaete Worm 1
ENCHYTRAEIDAE Aquatic Worm 1
Bezzia Biting Midge 1
Prosimulium Black Fly 1
Diamesa Bloodworm 1
Neophylax Caddisfly 1
Ameletus Combmouthed Minnow Mayfly 1
EMPIDIDAE Dance Fly 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.