MBSS Site Summary for: MO-P-258-213-97


Located on LITTLE PAINT BR in the Anacostia River watershed, 8-digit code: 02140205.
This stream was visited in the spring on 3/11/1997 and again in the summer on 6/16/1997.

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 - 2.3 / 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 739 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 26.5 %
Agricultural Land Use 31.7 %
Forested Land Use 37.8 %


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 17/20 (Optimal)
Velocity/Depth Diversity 10/20 (Marginal)
Pool Quality
Pool Extent = meters 		11/20 (Suboptimal)
Riffle Quality 15/20 (Suboptimal)
Shading 99 %
Embeddedness 0 %


Stream Water Quality:
Water temperature 19.9 ° C
Dissolved oxygen (DO) 8.8 mg/L
pH (lab) 7.24
Conductivity 128 µmho/cm
Alkalinity
(acid neutralizing capacity) 		483.1 µeq/L
Dissolved organic carbon (DOC) 2.1 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 8 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Longnose Dace 50
Blacknose Dace 29
Rosyside Dace 16
American Eel 11
Creek Chub 7
Cutlip Minnow 6
Fallfish 4
White Sucker 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
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
Naididae Aquatic Worm 41
Ephemerella Sulphur Mayfly 17
Cricotopus/Orthocladius Midge 10
Orthocladiinae A Non-Biting Midges 8
Parametriocnemus Non-Biting Midges 5
Clinocera Aquatic Dance Fly 4
Eurylophella Mayfly 3
Chaetocladius Non-Biting Midges 3
Diamesa Bloodworm 2
Tipula Crane Fly 1
Tubificidae Aquatic Worm 1
Cheumatopsyche Net-Spinning Caddisfly 1
Diplectrona Net-Spinning Caddisfly 1
Hydropsyche Net-Spinning Caddisfly 1
Corynoneura Non-Biting Midges 1
Eukiefferiella Non-Biting Midges 1
Polypedilum Non-Biting Midges 1
Optioservus Riffle Beetle 1
Hydrobius Water Scavenger Beetle 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.