MBSS Site Summary for: LMON-209-T-2000

Site Photos

Field photo showing stream conditions at site LMON-209-T-2000-01 (Opens in a new window)

Located on WELDON 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 6/28/2000.

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 Good - 4.0 / 5.0
Benthic IBI Good - 4.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 2,548 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 0.1 %
Agricultural Land Use 51.5 %
Forested Land Use 48 %


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 14/20 (Suboptimal)
Velocity/Depth Diversity 15/20 (Suboptimal)
Pool Quality
Pool Extent = 39 meters 		16/20 (Optimal)
Riffle Quality
Riffle Extent = 40 meters 		15/20 (Suboptimal)
Shading 70 %
Embeddedness 25 %


Stream Water Quality:
Water temperature 17.8 ° C
Dissolved oxygen (DO) 8.3 mg/L
pH (lab) 7.47
Conductivity 160 µmho/cm
Alkalinity
(acid neutralizing capacity) 		506.6 µeq/L
Dissolved organic carbon (DOC) 1.1 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 10 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 297
Potomac Sculpin 108
Blue Ridge Sculpin 97
Rosyside Dace 92
White Sucker 25
Fantail Darter 22
Longnose Dace 16
Creek Chub 11
Bluegill 2
Greenside Darter 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern Box Turtle
Northern Green Frog
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
Mile-A-Minute
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Ephemerella Sulphur Mayfly 35
Amphinemura Spring Stonefly 24
Simulium Black Fly 15
Stenonema Flatheaded Mayfly 10
Parametriocnemus Non-Biting Midges 8
Sympotthastia Non-Biting Midges 8
Thienemanniella Non-Biting Midges 8
Tanytarsus Non-Biting Midges 7
Orthocladiinae A Non-Biting Midges 6
Cricotopus/Orthocladius Midge 6
Cheumatopsyche Net-Spinning Caddisfly 4
Corynoneura Non-Biting Midges 2
Eurylophella Mayfly 2
Rheocricotopus Non-Biting Midges 2
Rheosmittia Non-Biting Midges 1
Stempellinella Non-Biting Midges 1
Tvetenia Non-Biting Midges 1
Perlodidae Perlodid Stonefly 1
Optioservus Riffle Beetle 1
Ancyronyx Spider Riffle Beetle 1
Hemerodromia Tiny Fly 1
Serratella Mayfly 1
Polypedilum Non-Biting Midges 1
Eukiefferiella Non-Biting Midges 1
Pisidium Freshwater Pea (Pill) Clam 1
Culicoides 1
Prosimulium Black Fly 1
Stegopterna Black Fly 1
Ameletus Combmouthed Minnow Mayfly 1
Strophopteryx Early Brown 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.