MBSS Site Summary for: LMON-237-T-2000

Site Photos

Field photo showing stream conditions at site LMON-237-T-2000-01 (Opens in a new window) Field photo showing stream conditions at site LMON-237-T-2000-02 (Opens in a new window)

Located on CARROLL CR in the Lower Monocacy River watershed, 8-digit code: 02140302.
This stream was visited in the spring on 3/29/2000 and again in the summer on 7/18/2000.

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 - 1.8 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 2,871 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 4.7 %
Agricultural Land Use 69.1 %
Forested Land Use 26.3 %


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 9/20 (Marginal)
Velocity/Depth Diversity 14/20 (Suboptimal)
Pool Quality
Pool Extent = 53 meters 		15/20 (Suboptimal)
Riffle Quality
Riffle Extent = 30 meters 		14/20 (Suboptimal)
Shading 15 %
Embeddedness 35 %


Stream Water Quality:
Water temperature 15.5 ° C
Dissolved oxygen (DO) 8.1 mg/L
pH (lab) 7.66
Conductivity 470 µmho/cm
Alkalinity
(acid neutralizing capacity) 		2844 µeq/L
Dissolved organic carbon (DOC) 1.3 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 9 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 3249
Potomac Sculpin 217
White Sucker 210
Fantail Darter 142
Longnose Dace 64
Bluegill 10
Bluntnose Minnow 4
Redbreast Sunfish 2
Largemouth Bass 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Pickerel Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Canada Thistle
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Crangonyx Amphipod 24
Cricotopus/Orthocladius Midge 24
Cricotopus Non-Biting Midges 24
Tvetenia Non-Biting Midges 10
Dicrotendipes Non-Biting Midges 6
Cladotanytarsus Non-Biting Midge 2
Conchapelopia Non-Biting Midges 2
Antocha Crane Fly 2
Lirceus Isopod 2
Paratanytarsus Non-Biting Midges 2
Polypedilum Non-Biting Midges 1
Tanytarsus Non-Biting Midges 1
Prosimulium Black Fly 1
Simulium Black Fly 1
Ischnura 1
Brillia Non-Biting Midges 1
Microtendipes Non-Biting Midges 1
Parametriocnemus Non-Biting Midges 1
Macronychus Riffle Beetle 1
Optioservus Riffle Beetle 1
Hemerodromia Tiny 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.