MBSS Site Summary for: PRFR-107-X-2016

Site Photos

Field photo showing stream conditions at site PRFR-107-X-2016_midpoint looking downstream (Opens in a new window) Field photo showing stream conditions at site PRFR-107-X-2016_midpoint looking upstream (Opens in a new window)

Located on UT Little Catoctin Creek in the Potomac River FR Cnty watershed, 8-digit code: 02140301.
This stream was visited in the spring on 4/20/2016.

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 Poor - 2.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 924 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 3.2 %
Agricultural Land Use 60.7 %
Forested Land Use 30.2 %


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:
No water quality measurements available for this site.

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:
No amphibians and reptiles noted.

Crayfish:
Orconectes virilis

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Simulium Black Fly 46
Cricotopus Non-Biting Midges 13
Orthocladius Non-Biting Midges 10
Thienemannimyia Group Non-Biting Midges 9
Baetis Blue-Winged Olive Mayfly 7
Parametriocnemus Non-Biting Midges 6
Tanypodinae Non-Biting Midges 4
Hemerodromia Tiny Fly 4
Tvetenia Non-Biting Midges 3
Micropsectra Non-Biting Midges 3
Naididae Aquatic Worm 3
Girardia Freshwater Flatworm 3
Caenis Mayfly 2
Polypedilum Non-Biting Midges 2
Limnophyes Non-Biting Midge 2
Thienemanniella Non-Biting Midges 2
Acentrella Tiny Blue-Winged Olive Mayflies 1
Corynoneura Non-Biting Midges 1
Diamesinae Non-Biting Midges 1
Microtendipes Non-Biting Midges 1
Orthocladiinae Midge 1
Argia Narrow-Winged Damselfly 1
Pagastia 1
Parakiefferiella European Non-Biting Midge 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.