MBSS Site Summary for: MATT-110-A-2010

Site Photos

Field photo showing stream conditions at site MATT-110-A-2010-1 (Opens in a new window) Field photo showing stream conditions at site MATT-110-A-2010-2 (Opens in a new window)

Located on UT Old Woman's Creek in the Mattawoman Creek watershed, 8-digit code: 02140111.
This stream was visited in the spring on 4/18/2010 and again in the summer on 7/10/2010.

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 Poor - 1.0 / 5.0
Benthic IBI Fair - 3.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 195 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 3.5 %
Agricultural Land Use 10 %
Forested Land Use 85.8 %


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

Physical Stream Habitat
Instream Habitat 10/20 (Marginal)
Epifaunal Substrate 10/20 (Marginal)
Velocity/Depth Diversity 10/20 (Marginal)
Pool Quality
Pool Extent = 60 meters 		8/20 (Marginal)
Riffle Quality
Riffle Extent = 18 meters 		10/20 (Marginal)
Shading 70 %
Embeddedness 50 %


Stream Water Quality:
pH (lab) 5.84
Alkalinity
(acid neutralizing capacity) 		59.2 µeq/L
Dissolved organic carbon (DOC) 2.3391 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 1 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
No Fish Observed 0
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Gray Treefrog
Northern Green Frog
Pickerel Frog
Wood Frog

Crayfish:
Cambarus diogenes

Exotic Plants:
No Exotic Plants Observed
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Polypedilum Non-Biting Midges 18
Rheocricotopus Non-Biting Midges 18
Synurella Amphipod 14
Ironoquia Northern Caddisfly 8
Crangonyctidae Scud 6
Paratendipes European Non-Biting Midge 5
Tubificidae Aquatic Worm 4
Leuctra  Rolled-Winged Stonefly 3
Caecidotea Isopod 3
Thienemannimyia Group Non-Biting Midges 3
Nanocladius Non-Biting Midges 2
Hydrobaenus Midge 2
Chironomini Non-Biting Midge 2
Heteroplectron Caddisfly 2
Tipula Crane Fly 1
Tipulidae Cranefly 1
Paralauterborniella 1
Ceratopogon Biting Midge 1
Simulium Black Fly 1
Corynoneura Non-Biting Midges 1
Cryptochironomus Non-Biting Midges 1
Microtendipes Non-Biting Midges 1
Diplectrona Net-Spinning Caddisfly 1
Musculium Fingernail Clam 1
Pycnopsyche Great Autumn Brown Sedge Caddisfly 1
Tribelos Non-Biting Midges 1
Libellulidae Skimmer Dragonfly 1
Tanytarsus Non-Biting Midges 1
Thienemanniella 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.