MBSS Site Summary for: UMON-229-R-2000

Site Photos

Field photo showing stream conditions at site UMON-229-R-2000-01 (Opens in a new window) Field photo showing stream conditions at site UMON-229-R-2000-02 (Opens in a new window)

Located on MUDDY RUN in the Upper Monocacy River watershed, 8-digit code: 02140303.
This stream was visited in the spring on 3/27/2000 and again in the summer on 7/5/2000.

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 - 2.5 / 5.0
Benthic IBI Fair - 3.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 1,327 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 2.8 %
Agricultural Land Use 3.1 %
Forested Land Use 94.1 %


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

Physical Stream Habitat
Instream Habitat 12/20 (Suboptimal)
Epifaunal Substrate 11/20 (Suboptimal)
Velocity/Depth Diversity 8/20 (Marginal)
Pool Quality
Pool Extent = 35 meters 		8/20 (Marginal)
Riffle Quality
Riffle Extent = 45 meters 		13/20 (Suboptimal)
Shading 80 %
Embeddedness 45 %


Stream Water Quality:
Water temperature 19.2 ° C
Dissolved oxygen (DO) 7.7 mg/L
pH (lab) 7.23
Conductivity 80 µmho/cm
Alkalinity
(acid neutralizing capacity) 		274.4 µeq/L
Dissolved organic carbon (DOC) 1.7 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
Blacknose Dace 215
Blue Ridge Sculpin 103
Rosyside Dace 76
Potomac Sculpin 36
Creek Chub 23
White Sucker 11
Central Stoneroller 3
Pumpkinseed 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Dusky Salamander
Northern Green Frog
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Amphinemura Spring Stonefly 39
Prosimulium Black Fly 24
Ephemerella Sulphur Mayfly 17
Perlodidae Perlodid Stonefly 7
Oulimnius Riffle Beetle 5
Eukiefferiella Non-Biting Midges 4
Cricotopus/Orthocladius Midge 4
Simulium Black Fly 3
Neophylax Caddisfly 3
Ameletus Combmouthed Minnow Mayfly 3
Acentrella Tiny Blue-Winged Olive Mayflies 3
Micrasema 2
Heptageniidae Flathead Mayfly 2
Rhyacophila Free-Living Caddisfly 2
Nemouridae Nemourid Stonefly 1
Conchapelopia Non-Biting Midges 1
Hexatoma Crane Fly 1
Parametriocnemus Non-Biting Midges 1
Sympotthastia Non-Biting Midges 1
Leuctridae Rolledwinged Stonefly 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.