MBSS Site Summary for: ANTI-104-R-2009

Site Photos

Field photo showing stream conditions at site ANTI-104-R-2009-1 (Opens in a new window) Field photo showing stream conditions at site ANTI-104-R-2009-2 (Opens in a new window)

Located on UT Antietam Creek in the Antietam Creek watershed, 8-digit code: 02140502.
This stream was visited in the spring on 4/14/2009 and again in the summer on 6/29/2009.

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 - 3.3 / 5.0
Benthic IBI Fair - 3.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 828 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 7.3 %
Agricultural Land Use 49.7 %
Forested Land Use 42.9 %


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

Physical Stream Habitat
Instream Habitat 11/20 (Suboptimal)
Epifaunal Substrate 12/20 (Suboptimal)
Velocity/Depth Diversity 11/20 (Suboptimal)
Pool Quality
Pool Extent = 54 meters 		12/20 (Suboptimal)
Riffle Quality
Riffle Extent = 23 meters 		11/20 (Suboptimal)
Shading 60 %
Embeddedness 50 %


Stream Water Quality:
Water temperature 18 ° C
Dissolved oxygen (DO) 8.9 mg/L
pH (lab) 7.73
Conductivity 87 µmho/cm
Alkalinity
(acid neutralizing capacity) 		452 µeq/L
Dissolved organic carbon (DOC) 1.2918 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 6 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 419
Fantail Darter 29
White Sucker 28
Creek Chub 14
Bluegill 6
Longnose Dace 4
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Northern Two-Lined Salamander

Crayfish:
Orconectes virilis

Exotic Plants:
Canada Thistle
Japanese Barberry
Japanese Stiltgrass
Multiflora Rose
Wineberry
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Amphinemura Spring Stonefly 44
Orthocladius Non-Biting Midges 30
Stenelmis Beetle 18
Micropsectra Non-Biting Midges 5
Eurylophella Mayfly 4
Rheocricotopus Non-Biting Midges 4
Tanytarsini Non-Biting Midges 4
Thienemannimyia Group Non-Biting Midges 4
Polypedilum Non-Biting Midges 3
Diamesa Bloodworm 3
Clinocera Aquatic Dance Fly 2
Optioservus Riffle Beetle 2
Dytiscidae Predaceous Diving Beetle 2
Agabus Predatory Aquatic Beetle 1
Tanytarsus Non-Biting Midges 1
Rheotanytarsus Non-Biting Midges 1
Simulium Black Fly 1
Parametriocnemus Non-Biting Midges 1
Ephemerella Sulphur Mayfly 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.