MBSS Site Summary for: PRMT-118-R-2002

Site Photos

Field photo showing stream conditions at site PRMT-118-R-2002-417 (Opens in a new window) Field photo showing stream conditions at site PRMT-118-R-2002-418 (Opens in a new window) Field photo showing stream conditions at site PRMT-118-R-2002-419 (Opens in a new window) Field photo showing stream conditions at site PRMT-118-R-2002-581 (Opens in a new window) Field photo showing stream conditions at site PRMT-118-R-2002-582 (Opens in a new window) Field photo showing stream conditions at site PRMT-118-R-2002-583 (Opens in a new window)

Located on REEDER RUN UT in the Potomac River M tidal watershed, 8-digit code: 02140102.
This stream was visited in the spring on 3/14/2002 and again in the summer on 7/9/2002.

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 - 5.0 / 5.0
Benthic IBI Good - 4.1 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 544 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0 %
Agricultural Land Use 10 %
Forested Land Use 88 %


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

Physical Stream Habitat
Instream Habitat 15/20 (Suboptimal)
Epifaunal Substrate 15/20 (Suboptimal)
Velocity/Depth Diversity 8/20 (Marginal)
Pool Quality
Pool Extent = 71 meters 		17/20 (Optimal)
Riffle Quality
Riffle Extent = 4 meters 		6/20 (Marginal)
Shading 35 %
Embeddedness 30 %


Stream Water Quality:
Water temperature 22.5 ° C
Dissolved oxygen (DO) 4.6 mg/L
Dissolved oxygen levels measured in the stream were very low (4.6 mg/L). Many fishes and other aquatic animals cannot tolerate low levels of oxygen in the water.
pH (lab) 6.64
Conductivity 50 µmho/cm
Alkalinity
(acid neutralizing capacity) 		180.7 µeq/L
Dissolved organic carbon (DOC) 4.2 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 9 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Creek Chubsucker 27
Eastern Mudminnow 19
Pumpkinseed 9
Redbreast Sunfish 9
American Eel 7
Golden Shiner 6
Chain Pickerel 4
Least Brook Lamprey 3
Green Sunfish 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Common Five-Lined Skink
Eastern Box Turtle
Eastern Cricket Frog
Fowler's Toad
Northern Green Frog
Northern Spring Peeper
Northern Watersnake
Pickerel Frog
Stinkpot

Crayfish:
Cambaridae

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Hyalella Amphipod 22
Caecidotea Isopod 16
Synurella Amphipod 8
Sphaerium Fingernail Clam 7
Tubificidae Aquatic Worm 6
Conchapelopia Non-Biting Midges 5
Parametriocnemus Non-Biting Midges 5
Tanytarsus Non-Biting Midges 4
Cricotopus Non-Biting Midges 3
Crangonyx Amphipod 2
Cheumatopsyche Net-Spinning Caddisfly 2
Caenis Mayfly 1
Orthocladius Non-Biting Midges 1
Corynoneura Non-Biting Midges 1
Ceratopogonidae Biting Midge 1
Simulium Black Fly 1
Parakiefferiella European Non-Biting Midge 1
Siphlonurus Gray Drake Mayfly 1
Naididae Aquatic Worm 1
Thienemanniella Non-Biting Midges 1
Trissopelopia Non-Biting Midges 1
Leptophlebiidae Pronggilled Mayfly 1
Ferrissia Small Air-Breathing Freshwater Limpets 1
Acerpenna Tiny Blue-Winged Olive Mayflies 1
Hydroporus Water Beetle 1
Corixidae Water Boatman 1
Tanypodinae 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.