MBSS Site Summary for: CH-S-033-314-95


Located on MATTAWOMAN CR in the Mattawoman Creek watershed, 8-digit code: 02140111.
This stream was visited in the spring on 3/7/1995 and again in the summer on 6/2/1995.

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 Poor - 2.7 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 40,507 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 9.5 %
Agricultural Land Use 17.7 %
Forested Land Use 69.6 %


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

Physical Stream Habitat
Instream Habitat 15/20 (Suboptimal)
Epifaunal Substrate 14/20 (Suboptimal)
Velocity/Depth Diversity 17/20 (Optimal)
Pool Quality
Pool Extent = meters 		15/20 (Suboptimal)
Riffle Quality 16/20 (Optimal)
Shading 80 %
Embeddedness 40 %


Stream Water Quality:
Water temperature 19.4 ° C
Dissolved oxygen (DO) 7.1 mg/L
pH (lab) 6.6
Conductivity 114 µmho/cm
Alkalinity
(acid neutralizing capacity) 		107.9 µeq/L
Dissolved organic carbon (DOC) 4 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 17 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Spottail Shiner 252
Bluegill 81
Tessellated Darter 59
American Eel 35
Pumpkinseed 16
Eastern Mudminnow 10
Chain Pickerel 8
Brown Bullhead 6
Creek Chubsucker 4
Blacknose Dace 3
Tadpole Madtom 3
Black Crappie 2
Eastern Silvery Minnow 2
Least Brook Lamprey 2
Sea Lamprey 2
White Sucker 2
Redbreast Sunfish 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern Ratsnake
Northern Green Frog
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Prosimulium Black Fly 108
Oemopteryx Stonefly 13
Rhyacophila Free-Living Caddisfly 2
Limnephilidae Northern Casemaker Caddisfly 2
Sperchopsis 1
Crangonyx Amphipod 1
Clioperla Green-Winged Stonefly 1
Orthocladius Non-Biting Midges 1
Parametriocnemus Non-Biting Midges 1
Agapetus Tiny Black Short-Horned Caddisfly 1
Taeniopteryx Winter Stonefly 1
Lumbriculidae Worm 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.