MBSS Site Summary for: ANTI-101-C-2000

Site Photos

Field photo showing stream conditions at site ANTI-101-C-2000-3 (Opens in a new window)

Located on EDGEMONT RESERVOIR UT1 in the Antietam Creek watershed, 8-digit code: 02140502.
This stream was visited in the spring on 4/5/2000 and again in the summer on 7/6/2000.

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 - 3.0 / 5.0
Benthic IBI Good - 4.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 1,402 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0 %
Agricultural Land Use 12.3 %
Forested Land Use 87.7 %


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

Physical Stream Habitat
Instream Habitat 18/20 (Optimal)
Epifaunal Substrate 18/20 (Optimal)
Velocity/Depth Diversity 10/20 (Marginal)
Pool Quality
Pool Extent = 30 meters 		10/20 (Marginal)
Riffle Quality
Riffle Extent = 50 meters 		17/20 (Optimal)
Shading 90 %
Embeddedness 10 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 14 ° C
Dissolved oxygen (DO) 8 mg/L
pH (lab) 7.54
Conductivity 110 µmho/cm
Alkalinity
(acid neutralizing capacity) 		414.1 µeq/L
Dissolved organic carbon (DOC) 1.8 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 2 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 110
Creek Chub 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Dusky Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Amphinemura Spring Stonefly 24
Prosimulium Black Fly 13
Leuctra  Rolled-Winged Stonefly 11
Ameletus Combmouthed Minnow Mayfly 10
Ephemerella Sulphur Mayfly 8
Micropsectra Non-Biting Midges 7
Cinygmula Dark Red Quill Mayfly 7
Epeorus Mayfly 5
Oulimnius Riffle Beetle 4
Diplectrona Net-Spinning Caddisfly 4
Perlidae Common Stonefly 3
Diamesa Bloodworm 2
Eukiefferiella Non-Biting Midges 2
Lumbriculidae Worm 1
Hydropsyche Net-Spinning Caddisfly 1
Baetis Blue-Winged Olive Mayfly 1
Enchytraeidae Aquatic Worm 1
Tipula Crane Fly 1
Cheumatopsyche Net-Spinning Caddisfly 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.