MBSS Site Summary for: ANTI-111-R-2003

Site Photos

Field photo showing stream conditions at site ANTI-111-R-2003-1 (Opens in a new window) Field photo showing stream conditions at site ANTI-111-R-2003-4 (Opens in a new window) Field photo showing stream conditions at site ANTI-111-R-2003-2 (Opens in a new window) Field photo showing stream conditions at site ANTI-111-R-2003-5 (Opens in a new window)

Located on DOG CR UT1 in the Antietam Creek watershed, 8-digit code: 02140502.
This stream was visited in the spring on 3/17/2003 and again in the summer on 7/16/2003.

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 Poor - 2.0 / 5.0
Benthic IBI Poor - 1.5 / 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 9 %
Agricultural Land Use 77 %
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 14/20 (Suboptimal)
Epifaunal Substrate 5/20 (Poor)
Velocity/Depth Diversity 12/20 (Suboptimal)
Pool Quality
Pool Extent = 39 meters 		12/20 (Suboptimal)
Riffle Quality
Riffle Extent = 40 meters 		11/20 (Suboptimal)
Shading 65 %
Embeddedness 60 %
The embeddedness, a measure of silt on the stream bottom, was 60%. This is relatively high, and may exclude some biota.


Stream Water Quality:
Water temperature 19.8 ° C
Dissolved oxygen (DO) 6.9 mg/L
pH (lab) 8.69
Conductivity 461 µmho/cm
Alkalinity
(acid neutralizing capacity) 		1907 µeq/L
Dissolved organic carbon (DOC) 2.7 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 279
Longnose Dace 22
White Sucker 10
Bluegill 2
Bluntnose Minnow 1
Creek Chub 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
Canada Thistle
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Sphaerium Fingernail Clam 67
Thienemanniella Non-Biting Midges 17
Diamesa Bloodworm 5
Orthocladius Non-Biting Midges 3
Parametriocnemus Non-Biting Midges 3
Crangonyx Amphipod 3
Tubificidae Aquatic Worm 2
Planariidae Flatworm 2
Agabus Predatory Aquatic Beetle 2
Corynoneura Non-Biting Midges 2
Optioservus Riffle Beetle 1
Amphinemura Spring Stonefly 1
Thienemannimyia group Non-Biting Midges 1
Tvetenia Non-Biting Midges 1
Polypedilum Non-Biting Midges 1
Heterotrissocladius European Non-Biting Midge 1
Prostoma Freshwater Nemertean (Ribbon Worm) 1
Caecidotea Isopod 1
Stenelmis Beetle 1
Naididae Aquatic Worm 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.