MBSS Site Summary for: MATT-108-R-2000

Site Photos

Field photo showing stream conditions at site MATT-108-R-2000-01 (Opens in a new window) Field photo showing stream conditions at site MATT-108-R-2000-02 (Opens in a new window)

Located on MATTAWOMAN CR UT1 in the Mattawoman Creek watershed, 8-digit code: 02140111.
This stream was visited in the spring on 3/9/2000 and again in the summer on 6/19/2000.

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 Poor - 2.7 / 5.0
Benthic IBI Poor - 2.4 / 5.0

Land Use

Land use can provide important information for determining stream health.
(Hint: Screen readers will announce definitions; mouse users can hover over dotted text.)
Catchment area 1,192 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0.5 %
Agricultural Land Use 21.5 %
Forested Land Use 78 %


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

Physical Stream Habitat
Instream Habitat 19/20 (Optimal)
Epifaunal Substrate 17/20 (Optimal)
Velocity/Depth Diversity 17/20 (Optimal)
Pool Quality
Pool Extent = 40 meters 		17/20 (Optimal)
Riffle Quality
Riffle Extent = 40 meters 		16/20 (Optimal)
Shading 80 %
Embeddedness 35 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 20.7 ° C
Dissolved oxygen (DO) 7.1 mg/L
pH (lab) 5.99
Conductivity 70 µmho/cm
Alkalinity
(acid neutralizing capacity) 		39.1 µeq/L
Dissolved organic carbon (DOC) 2.9 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 6 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Eastern Mudminnow 31
Bluegill 20
Golden Shiner 4
Creek Chubsucker 2
Green Sunfish 2
Redfin Pickerel 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
No amphibians and reptiles noted.

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Amphinemura Spring Stonefly 34
Prosimulium Black Fly 29
Nemouridae Nemourid Stonefly 15
Stegopterna Black Fly 12
Rhyacophila Free-Living Caddisfly 9
Caecidotea Isopod 8
Eukiefferiella Non-Biting Midges 5
Polypedilum Non-Biting Midges 3
Clioperla Green-Winged Stonefly 2
Conchapelopia Non-Biting Midges 1
Corynoneura Non-Biting Midges 1
Tipula Crane Fly 1
Simulium Black Fly 1
Tanytarsus 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.