MBSS Site Summary for: ANTI-101-S-2010

Site Photos

Field photo showing stream conditions at site ANTI-101-S-2010-1 (Opens in a new window) Field photo showing stream conditions at site ANTI-101-S-2010-2 (Opens in a new window)

Located on UT to Edgemont Reservoir in the Antietam Creek watershed, 8-digit code: 02140502.
This stream was visited in the spring on 3/18/2010 and again in the summer on 6/8/2010.

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 - 3.5 / 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 1,414 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 4.3 %
Agricultural Land Use 5.4 %
Forested Land Use 90.3 %


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 15/20 (Suboptimal)
Velocity/Depth Diversity 17/20 (Optimal)
Pool Quality
Pool Extent = 33 meters 		15/20 (Suboptimal)
Riffle Quality
Riffle Extent = 44 meters 		18/20 (Optimal)
Shading 85 %
Embeddedness 35 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
pH (lab) 7.66
Alkalinity
(acid neutralizing capacity) 		397.985 µeq/L
Dissolved organic carbon (DOC) 1.2615 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 83
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern American Toad
Eastern Red-Backed Salamander
Northern Slimy Salamander
Northern Two-Lined Salamander

Crayfish:
Cambarus bartonii bartonii

Exotic Plants:
Garlic Mustard
Japanese Stiltgrass
Norway Maple
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Epeorus Mayfly 27
Prosimulium Black Fly 13
Sweltsa Stonefly 8
Ameletus Combmouthed Minnow Mayfly 6
Diplectrona Net-Spinning Caddisfly 6
Leptophlebiidae Pronggilled Mayfly 5
Ephemerellidae Spiny Crawler Mayfly 5
Amphinemura Spring Stonefly 5
Prostoia Spring Stonefly 4
Nemouridae Nemourid Stonefly 4
Neophylax Caddisfly 4
Rhyacophila Free-Living Caddisfly 3
Maccaffertium March Brown And Cahill Mayfly 2
Sympotthastia Non-Biting Midges 2
Heptageniidae Flathead Mayfly 2
Oulimnius Riffle Beetle 2
Baetidae Small Minnow Mayfly 1
Wormaldia Fingernet Caddisfly 1
Paraleptophlebia Blue Quill Mayfly 1
Leuctra  Rolled-Winged Stonefly 1
Enchytraeidae Aquatic Worm 1
Tanytarsus Non-Biting Midges 1
Diphetor Mayfly 1
Acroneuria Golden Stoneflies 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.