MBSS Site Summary for: ANTI-201-R-2003

Site Photos

Field photo showing stream conditions at site ANTI-201-R-2003-1 (Opens in a new window) Field photo showing stream conditions at site ANTI-201-R-2003-3 (Opens in a new window) Field photo showing stream conditions at site ANTI-201-R-2003-2 (Opens in a new window) Field photo showing stream conditions at site ANTI-201-R-2003-4 (Opens in a new window)

Located on ANTIETAM CR UT2 in the Antietam Creek watershed, 8-digit code: 02140502.
This stream was visited in the spring on 3/11/2003 and again in the summer on 7/22/2003.

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 - 3.7 / 5.0
Benthic IBI Poor - 2.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 1,038 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 3 %
Agricultural Land Use 33 %
Forested Land Use 63 %


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 9/20 (Marginal)
Pool Quality
Pool Extent = 34 meters 		8/20 (Marginal)
Riffle Quality
Riffle Extent = 49 meters 		11/20 (Suboptimal)
Shading 86 %
Embeddedness 35 %


Stream Water Quality:
Water temperature 17.3 ° C
Dissolved oxygen (DO) 8.3 mg/L
pH (lab) 7.74
Conductivity 485 µmho/cm
Alkalinity
(acid neutralizing capacity) 		2409 µeq/L
Dissolved organic carbon (DOC) 2 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 12 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Bluntnose Minnow 364
Blacknose Dace 212
Green Sunfish 20
Longnose Dace 15
Creek Chub 9
Rainbow Darter 9
White Sucker 8
Longear Sunfish 2
Redbreast Sunfish 2
Yellow Bullhead 2
Largemouth Bass 1
River Chub 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Polypedilum Non-Biting Midges 25
Gammarus Amphipod 13
Diamesa Bloodworm 13
Optioservus Riffle Beetle 9
Microtendipes Non-Biting Midges 7
Thienemanniella Non-Biting Midges 6
Physa Air-Breathing Freshwater Snail 6
Psephenus Water Penny 5
Orthocladius Non-Biting Midges 5
Cheumatopsyche Net-Spinning Caddisfly 5
Enchytraeidae Aquatic Worm 4
Corynoneura Non-Biting Midges 3
Prosimulium Black Fly 2
Stenelmis Beetle 2
Parametriocnemus Non-Biting Midges 2
Hydroporus Water Beetle 1
Thienemannimyia group Non-Biting Midges 1
Pisidiidae Pill Clam 1
Lumbriculidae Worm 1
Ceratopogonidae Biting Midge 1
Naididae Aquatic Worm 1
Chelifera Aquatic Dance Fly 1
Limonia 1
Stagnicola Air Breathing Freshwater Snail 1
Stegopterna Black Fly 1
Smittia European Non-Biting Midge 1
Diamesinae Non-Biting Midges 1
Dicrotendipes 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.