MBSS Site Summary for: ANTI-105-R-2017

Site Photos

Field photo showing stream conditions at site ANTI-105-R-2017-MidpointDownstream (Opens in a new window) Field photo showing stream conditions at site ANTI-105-R-2017-MidpointUpstream (Opens in a new window)

Located on Little Antietam Creek in the Antietam Creek watershed, 8-digit code: 02140502.
This stream was visited in the spring on 4/5/2017 and again in the summer on 6/20/2017.

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 Good - 4.0 / 5.0
Benthic IBI Fair - 3.5 / 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 27.6 %
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 16/20 (Optimal)
Velocity/Depth Diversity 10/20 (Marginal)
Pool Quality
Pool Extent = 39 meters 		10/20 (Marginal)
Riffle Quality
Riffle Extent = 41 meters 		15/20 (Suboptimal)
Shading 80 %
Embeddedness 35 %


Stream Water Quality:
pH (lab) 7.32
Alkalinity
(acid neutralizing capacity) 		286.1 µeq/L
Dissolved organic carbon (DOC) 2.542 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 145
Checkered Sculpin 97
Creek Chub 53
Fantail Darter 25
White Sucker 9
Bluegill 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog
Northern Slimy Salamander

Crayfish:
Cambarus bartonii bartonii
Orconectes virilis

Exotic Plants:
Japanese Barberry
Japanese Honeysuckle
Japanese Stiltgrass
Multiflora Rose
Tree Of Heaven
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
AMPHINEMURA Spring Stonefly 55
MACCAFFERTIUM March Brown And Cahill Mayfly 22
SIMULIUM Black Fly 6
NEOPHYLAX Caddisfly 5
PARAMETRIOCNEMUS Non-Biting Midges 4
LEUCTRA  Rolled-Winged Stonefly 3
DIPLECTRONA Net-Spinning Caddisfly 3
CORYNONEURA Non-Biting Midges 3
ORTHOCLADIUS Non-Biting Midges 2
CHEUMATOPSYCHE Net-Spinning Caddisfly 2
THIENEMANNIMYIA GROUP Non-Biting Midges 2
LEPTOPHLEBIIDAE Pronggilled Mayfly 2
EPHEMERELLA Sulphur Mayfly 2
RHYACOPHILA Free-Living Caddisfly 2
OPTIOSERVUS Riffle Beetle 1
TRISSOPELOPIA Non-Biting Midges 1
ANCHYTARSUS Beetle 1
BEZZIA Biting Midge 1
LANTHUS Clubtail Dragonfly 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.