MBSS Site Summary for: MATT-305-X-2000


Located on MATTAWOMAN CR in the Mattawoman Creek watershed, 8-digit code: 02140111.
This stream was visited in the summer on 8/16/2000.

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 - 3.3 / 5.0
Benthic IBI Fair - 3.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 29,027 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 11 %
Agricultural Land Use 19.2 %
Forested Land Use 65.8 %


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

Physical Stream Habitat
Instream Habitat 16/20 (Optimal)
Epifaunal Substrate 15/20 (Suboptimal)
Velocity/Depth Diversity 17/20 (Optimal)
Pool Quality
Pool Extent = 45 meters 		15/20 (Suboptimal)
Riffle Quality
Riffle Extent = 30 meters 		16/20 (Optimal)
Shading 95 %
Embeddedness 25 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 22 ° C
Dissolved oxygen (DO) 7.6 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 11 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
American Eel 36
Bluegill 29
Eastern Mudminnow 11
Tessellated Darter 9
Pumpkinseed 4
Blacknose Dace 3
Tadpole Madtom 3
Yellow Bullhead 3
Brown Bullhead 2
Largemouth Bass 2
Chain Pickerel 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Eastern Box Turtle
Northern Green Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Japanese Stiltgrass
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Cheumatopsyche Net-Spinning Caddisfly 63
Hydropsychidae Common Netspinner Caddisfly 18
Stenelmis Beetle 16
Simulium Black Fly 9
Hydropsyche Net-Spinning Caddisfly 9
Heptageniidae Flathead Mayfly 7
Rheosmittia Non-Biting Midges 3
Tanytarsus Non-Biting Midges 2
Pisidiidae Pill Clam 1
Acerpenna Tiny Blue-Winged Olive Mayflies 1
Cricotopus/Orthocladius Midge 1
Ablabesmyia Non-Biting Midge 1
Synurella Amphipod 1
Prosimulium Black 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.