MBSS Site Summary for: ANTI-401-H-2011

Site Photos

Field photo showing stream conditions at site ANTI-401-H-2011-1 (Opens in a new window) Field photo showing stream conditions at site ANTI-401-H-2011-2 (Opens in a new window) Field photo showing stream conditions at site ANTI-401-H-2011-1 (Opens in a new window) Field photo showing stream conditions at site ANTI-401-H-2011-2 (Opens in a new window)

Located on ANTIETAM CREEK in the Antietam Creek watershed, 8-digit code: 02140502.
This stream was visited in the spring on 4/11/2011 and again in the summer on 8/22/2011.

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 N R
Benthic IBI Fair - 3.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 179,513 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 16 %
Agricultural Land Use 53.4 %
Forested Land Use 29.9 %


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

Physical Stream Habitat
Instream Habitat not sampled
Epifaunal Substrate not sampled
Velocity/Depth Diversity not sampled
Pool Quality not sampled
Riffle Quality not sampled
Shading not sampled
Embeddedness not sampled


Stream Water Quality:
pH (lab) 8.12
Alkalinity
(acid neutralizing capacity) 		3424.8 µeq/L
Dissolved organic carbon (DOC) 1.5609 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:
Fish data is unavailable or no fish observed.

Amphibians and Reptiles:
Queen Snake

Crayfish:
Orconectes rusticus

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Orthocladius Non-Biting Midges 24
Ephemerella Sulphur Mayfly 24
Gammarus Amphipod 23
Stenelmis Beetle 6
Orthocladiinae Midge 6
Hydrobaenus Midge 5
AMPHIPODA Scud 4
Leptoxis Freshwater Snail 4
Cheumatopsyche Net-Spinning Caddisfly 4
Maccaffertium March Brown And Cahill Mayfly 3
NAIDIDAE Aquatic Worm 2
Teloganopsis Mayfly 1
Acroneuria Golden Stoneflies 1
CHLOROPERLIDAE Green Stonefly 1
Caecidotea Isopod 1
Lepidostoma Little Brown Sedge Caddisfly 1
Amphinemura Spring Stonefly 1
Macronychus Riffle Beetle 1
Optioservus Riffle Beetle 1
Ophiogomphus 1
Argia Narrow-Winged Damselfly 1
Polycentropus Tube Maker Caddisfly 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.