MBSS Site Summary for: ANTI-111-R-2017

Site Photos

Field photo showing stream conditions at site ANTI-111-R-2017-MidpointDownstream (Opens in a new window) Field photo showing stream conditions at site ANTI-111-R-2017-MidpointUpstream (Opens in a new window)

Located on UT Little Antietam Creek in the Antietam Creek watershed, 8-digit code: 02140502.
This stream was visited in the spring on 3/21/2017 and again in the summer on 7/31/2017.

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 - 3.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 801 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 12.4 %
Agricultural Land Use 72.6 %
Forested Land Use 15 %


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

Physical Stream Habitat
Instream Habitat 12/20 (Suboptimal)
Epifaunal Substrate 15/20 (Suboptimal)
Velocity/Depth Diversity 13/20 (Suboptimal)
Pool Quality
Pool Extent = 43 meters 		11/20 (Suboptimal)
Riffle Quality
Riffle Extent = 34 meters 		13/20 (Suboptimal)
Shading 40 %
Embeddedness 30 %


Stream Water Quality:
pH (lab) 8.23
Alkalinity
(acid neutralizing capacity) 		2259.3 µeq/L
Dissolved organic carbon (DOC) 1.9953 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 7 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 233
Creek Chub 94
Fantail Darter 37
Bluntnose Minnow 36
White Sucker 19
Largemouth Bass 5
Longnose Dace 4
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Two-Lined Salamander
Northern Water Snake

Crayfish:
Orconectes virilis

Exotic Plants:
Japanese Honeysuckle
Japanese Stiltgrass
Oriental Bittersweet
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
DIPHETOR Mayfly 49
ORTHOCLADIUS Non-Biting Midges 23
CHIMARRA Fingernet Caddisfly 21
THIENEMANNIELLA Non-Biting Midges 17
CHEUMATOPSYCHE Net-Spinning Caddisfly 10
POLYPEDILUM Non-Biting Midges 9
TVETENIA Non-Biting Midges 6
TANYTARSUS Non-Biting Midges 6
PSEPHENUS Water Penny 6
ORTHOCLADIINAE Midge 5
DIAMESA Bloodworm 5
STENELMIS Beetle 4
NEOZAVRELIA 3
RHEOCRICOTOPUS Non-Biting Midges 3
PARAMETRIOCNEMUS Non-Biting Midges 2
HYDROPSYCHE Net-Spinning Caddisfly 1
CRANGONYX Amphipod 1
SIMULIUM Black Fly 1
NEOPHYLAX Caddisfly 1
MACCAFFERTIUM March Brown And Cahill Mayfly 1
ISONYCHIA Slate Drake Mayfly 1
EPHEMERELLA Sulphur Mayfly 1
THIENEMANNIMYIA GROUP Non-Biting Midges 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.