MBSS Site Summary for: PRMO-120-R-2002

Site Photos

Field photo showing stream conditions at site PRMO-120-R-2002-1 (Opens in a new window) Field photo showing stream conditions at site PRMO-120-R-2002-2 (Opens in a new window) Field photo showing stream conditions at site PRMO-120-R-2002-3 (Opens in a new window) Field photo showing stream conditions at site PRMO-120-R-2002-4 (Opens in a new window)

Located on LITTLE MONOCACY R UT 1 in the Potomac River MO Cnty watershed, 8-digit code: 02140202.
This stream was visited in the spring on 3/4/2002 and again in the summer on 6/24/2002.

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 - 2.0 / 5.0
Benthic IBI Poor - 2.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 343 acres Cows standing in a stream at a site with high agricultural land use. Cows survey the sampling procedure at this extreme example of a highly agriculturalized site.
Urban Land Use 5 %
Agricultural Land Use 74 %
Forested Land Use 14 %


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 11/20 (Suboptimal)
Velocity/Depth Diversity 8/20 (Marginal)
Pool Quality
Pool Extent = 30 meters 		8/20 (Marginal)
Riffle Quality
Riffle Extent = 45 meters 		7/20 (Marginal)
Shading 92 %
Embeddedness 35 %


Stream Water Quality:
Water temperature 19.5 ° C
Dissolved oxygen (DO) 8.8 mg/L
pH (lab) 7.61
Conductivity 400 µmho/cm
Alkalinity
(acid neutralizing capacity) 		1322 µeq/L
Dissolved organic carbon (DOC) 3.4 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 3 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 73
Creek Chub 49
Green Sunfish 3
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern American Toad
Wood Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Canada Thistle
Japanese Stiltgrass
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Amphinemura Spring Stonefly 28
Tanypodinae Non-Biting Midges 14
Parametriocnemus Non-Biting Midges 8
Tanytarsini Non-Biting Midges 7
Micropsectra Non-Biting Midges 6
Paracapnia Small Winter Stonefly 5
Caecidotea Isopod 4
Orthocladiinae Midge 4
Crangonyx Amphipod 4
Tipula Crane Fly 4
Ameletus Combmouthed Minnow Mayfly 3
Clioperla Green-Winged Stonefly 3
Diplectrona Net-Spinning Caddisfly 2
Larsia Non-Biting Midge 2
Conchapelopia Non-Biting Midges 2
Corynoneura Non-Biting Midges 2
Eukiefferiella Non-Biting Midges 2
Microtendipes Non-Biting Midges 2
Pisidiidae Pill Clam 2
Perlodidae Perlodid Stonefly 1
Stempellinella Non-Biting Midges 1
Isotomurus Elongate-Bodied Springtail 1
Rhyacophila Free-Living Caddisfly 1
Anchytarsus Beetle 1
Bezzia Biting Midge 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.