MBSS Site Summary for: ANTI-105-R-2003

Site Photos

Field photo showing stream conditions at site ANTI-105-R-2003-1 (Opens in a new window) Field photo showing stream conditions at site ANTI-105-R-2003-3 (Opens in a new window) Field photo showing stream conditions at site ANTI-105-R-2003-2 (Opens in a new window) Field photo showing stream conditions at site ANTI-105-R-2003-4 (Opens in a new window)

Located on LITTLE ANTIETAM CR (1) UT2 in the Antietam Creek watershed, 8-digit code: 02140502.
This stream was visited in the spring on 3/5/2003 and again in the summer on 7/15/2003.

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 Poor - 2.8 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 627 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 4 %
Agricultural Land Use 27 %
Forested Land Use 68 %


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 11/20 (Suboptimal)
Velocity/Depth Diversity 11/20 (Suboptimal)
Pool Quality
Pool Extent = 40 meters 		14/20 (Suboptimal)
Riffle Quality
Riffle Extent = 40 meters 		11/20 (Suboptimal)
Shading 94 %
Embeddedness 40 %


Stream Water Quality:
Water temperature 17.6 ° C
Dissolved oxygen (DO) 7.6 mg/L
pH (lab) 6.98
Conductivity 121 µmho/cm
Alkalinity
(acid neutralizing capacity) 		255.2 µeq/L
Dissolved organic carbon (DOC) 3 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 5 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 144
Creek Chub 17
Fantail Darter 14
White Sucker 2
Bluegill 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Two-Lined Salamander

Crayfish:
Cambaridae

Exotic Plants:
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Prosimulium Black Fly 42
Parametriocnemus Non-Biting Midges 11
Tanytarsus Non-Biting Midges 7
Wormaldia Fingernet Caddisfly 7
Capniidae Small Winter Stonefly 6
Prostoia Spring Stonefly 4
Optioservus Riffle Beetle 4
Orthocladius Non-Biting Midges 4
Bezzia Biting Midge 3
Tvetenia Non-Biting Midges 3
Elmidae Riffle Beetle 3
Amphinemura Spring Stonefly 2
Pisidiidae Pill Clam 2
Nigronia Megaloptera (Dark Fishfly) 2
Stilocladius Midge 2
Nemouridae Nemourid Stonefly 2
Diplectrona Net-Spinning Caddisfly 2
Diamesa Bloodworm 2
Neophylax Caddisfly 2
Pseudolimnophila Crane Fly 2
Heleniella European Non-Biting Midge 2
Perlidae Common Stonefly 1
Simuliidae Black Fly 1
Stegopterna Black Fly 1
Leuctra  Rolled-Winged Stonefly 1
Sialis Alderfly 1
Stenelmis Beetle 1
Corynoneura Non-Biting Midges 1
Eukiefferiella Non-Biting Midges 1
Micropsectra Non-Biting Midges 1
Hydrobaenus Midge 1
Orthocladiinae Midge 1
Clioperla Green-Winged Stonefly 1
Baetidae Small Minnow Mayfly 1
Tanytarsini Non-Biting Midges 1
Eccoptura Yellow Stone Stonefly 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.