MBSS Site Summary for: LMON-147-T-2000

Site Photos

Field photo showing stream conditions at site LMON-147-T-2000-01 (Opens in a new window)

Located on DOLLYHIDE CR UT1 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 6/27/2000.

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 - 1.0 / 5.0
Benthic IBI Poor - 1.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
(Hint: Screen readers will announce definitions; mouse users can hover over dotted text.)
Catchment area 263 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 %
Agricultural Land Use 96.5 %
Forested Land Use 3.4 %


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

Physical Stream Habitat
Instream Habitat 5/20 (Poor)
Epifaunal Substrate 4/20 (Poor)
Velocity/Depth Diversity 6/20 (Marginal)
Pool Quality
Pool Extent = 37 meters 		7/20 (Marginal)
Riffle Quality
Riffle Extent = 38 meters 		7/20 (Marginal)
Shading 10 %
Embeddedness 75 %
The embeddedness, a measure of silt on the stream bottom, was 75%. This is relatively high, and may exclude some biota.


Stream Water Quality:
Water temperature 19.7 ° C
Dissolved oxygen (DO) 6.8 mg/L
pH (lab) 7.86
Conductivity 350 µmho/cm
Alkalinity
(acid neutralizing capacity) 		2336 µeq/L
Dissolved organic carbon (DOC) 2.6 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 1 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 11
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Northern Green Frog
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
Canada Thistle
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Lirceus Isopod 45
Cricotopus/Orthocladius Midge 27
Parametriocnemus Non-Biting Midges 8
Conchapelopia Non-Biting Midges 4
Diamesa Bloodworm 2
Pseudolimnophila Crane Fly 2
Heterotrissocladius European Non-Biting Midge 2
Girardia Freshwater Flatworm 1
Micropsectra Non-Biting Midges 1
Orthocladiinae A Non-Biting Midges 1
Coenagrionidae Narrowwinged Damselfly 1
Tanypodinae Non-Biting Midges 1
Agabus Predatory Aquatic Beetle 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.