MBSS Site Summary for: LMON-220-T-2000

Site Photos

Field photo showing stream conditions at site LMON-220-T-2000-01 (Opens in a new window) Field photo showing stream conditions at site LMON-220-T-2000-02 (Opens in a new window)

Located on ROCK CR in the Lower Monocacy River watershed, 8-digit code: 02140302.
This stream was visited in the spring on 3/15/2000 and again in the summer on 7/13/2000.

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 Fair - 3.7 / 5.0
Benthic IBI Poor - 1.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 2,271 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 20.9 %
Agricultural Land Use 34.7 %
Forested Land Use 44.1 %


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

Physical Stream Habitat
Instream Habitat 14/20 (Suboptimal)
Epifaunal Substrate 13/20 (Suboptimal)
Velocity/Depth Diversity 14/20 (Suboptimal)
Pool Quality
Pool Extent = 40 meters 		14/20 (Suboptimal)
Riffle Quality
Riffle Extent = 35 meters 		13/20 (Suboptimal)
Shading 70 %
Embeddedness 25 %


Stream Water Quality:
Water temperature 17.6 ° C
Dissolved oxygen (DO) 8.4 mg/L
pH (lab) 8.44
Conductivity 590 µmho/cm
Alkalinity
(acid neutralizing capacity) 		2362 µeq/L
Dissolved organic carbon (DOC) 1.4 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 6 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 344
Fantail Darter 109
Potomac Sculpin 93
White Sucker 37
Bluntnose Minnow 19
Longnose Dace 14
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Red Salamander
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
Mile-A-Minute
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Cricotopus/Orthocladius Midge 37
Naididae Aquatic Worm 30
Cricotopus Non-Biting Midges 25
Gammarus Amphipod 23
Diamesa Bloodworm 6
Hydropsyche Net-Spinning Caddisfly 2
Girardia Freshwater Flatworm 1
Micropsectra Non-Biting Midges 1
Thienemanniella Non-Biting Midges 1
Optioservus Riffle Beetle 1
Psephenus Water Penny 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.