MBSS Site Summary for: PRMT-101-X-2017

Site Photos

Field photo showing stream conditions at site PRMT-101-X-2017-MidpointDownstream (Opens in a new window) Field photo showing stream conditions at site PRMT-101-X-2017-MidpointUpstream (Opens in a new window)

Located on UT Mallows Bay in the Potomac River M tidal watershed, 8-digit code: 02140102.
This stream was visited in the spring on 3/7/2017.

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 N R
Benthic IBI Good - 5.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area No data available A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 5.5 %
Agricultural Land Use 15.5 %
Forested Land Use 72.2 %


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:
The following 1 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Two-Lined Salamander

Crayfish:
Cambarus bartonii bartonii

Exotic Plants:
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
POLYPEDILUM Non-Biting Midges 13
ACERPENNA Tiny Blue-Winged Olive Mayflies 12
AMPHINEMURA Spring Stonefly 10
NAIDIDAE Aquatic Worm 7
CHIMARRA Fingernet Caddisfly 7
MACCAFFERTIUM March Brown And Cahill Mayfly 5
DIPHETOR Mayfly 4
EURYLOPHELLA Mayfly 4
HAPLOPERLA Green Stonefly 4
LEPTOPHLEBIA Pronggilled Mayfly 4
THIENEMANNIMYIA GROUP Non-Biting Midges 4
RHEOCRICOTOPUS Non-Biting Midges 3
RHEOTANYTARSUS Non-Biting Midges 3
LEPTOPHLEBIIDAE Pronggilled Mayfly 3
ORTHOCLADIINAE Midge 3
PSEPHENUS Water Penny 3
ORTHOCLADIUS Non-Biting Midges 2
PARAMETRIOCNEMUS Non-Biting Midges 2
PROBEZZIA Biting Midges 2
OULIMNIUS Riffle Beetle 2
LEUCTRIDAE Rolledwinged Stonefly 2
TANYTARSUS Non-Biting Midges 2
THIENEMANNIELLA Non-Biting Midges 1
TRISSOPELOPIA Non-Biting Midges 1
TVETENIA Non-Biting Midges 1
STEMPELLINELLA Non-Biting Midges 1
ANCYRONYX Spider Riffle Beetle 1
STEMPELLINA 1
DUBIRAPHIA Riffle Beetle 1
MACRONYCHUS Riffle Beetle 1
PARALEPTOPHLEBIA Blue Quill Mayfly 1
HAGENIUS Clubtail Dragonfly 1
PERLIDAE Common Stonefly 1
HEXATOMA Crane Fly 1
ISOTOMURUS Elongate-Bodied Springtail 1
CAECIDOTEA Isopod 1
DIPLECTRONA Net-Spinning Caddisfly 1
HYDROPSYCHE Net-Spinning Caddisfly 1
UNNIELLA Non-Biting Midge 1
CHAETOCLADIUS Non-Biting Midges 1
EUKIEFFERIELLA Non-Biting Midges 1
NANOCLADIUS Non-Biting Midges 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.