MBSS Site Summary for: PRET-111-R-2000

Site Photos

Field photo showing stream conditions at site PRET-111-R-2000-01 (Opens in a new window)

Located on GRAVE RUN UT1 in the Prettyboy Reservoir watershed, 8-digit code: 02130806.
This stream was visited in the spring on 3/2/2000 and again in the summer on 6/13/2000.

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 Fair - 3.7 / 5.0
Benthic IBI Good - 4.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 364 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 0 %
Agricultural Land Use 73.9 %
Forested Land Use 26.1 %


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

Physical Stream Habitat
Instream Habitat 13/20 (Suboptimal)
Epifaunal Substrate 14/20 (Suboptimal)
Velocity/Depth Diversity 9/20 (Marginal)
Pool Quality
Pool Extent = 19 meters 		8/20 (Marginal)
Riffle Quality
Riffle Extent = 56 meters 		14/20 (Suboptimal)
Shading 5 %
Embeddedness 25 %


Stream Water Quality:
Water temperature 14.8 ° C
Dissolved oxygen (DO) 9.1 mg/L
pH (lab) 6.9
Conductivity 130 µmho/cm
Alkalinity
(acid neutralizing capacity) 		237.1 µeq/L
Dissolved organic carbon (DOC) 0.9 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 3 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 392
Blue Ridge Sculpin 109
Creek Chub 18
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Ephemerella Sulphur Mayfly 28
Prosimulium Black Fly 15
Micropsectra Non-Biting Midges 9
Corynoneura Non-Biting Midges 8
Perlodidae Perlodid Stonefly 7
Cricotopus/Orthocladius Midge 6
Thienemanniella Non-Biting Midges 6
Optioservus Riffle Beetle 5
Lumbriculidae Worm 3
Parametriocnemus Non-Biting Midges 3
Sympotthastia Non-Biting Midges 2
Eukiefferiella Non-Biting Midges 2
Paraleptophlebia Blue Quill Mayfly 2
Diplectrona Net-Spinning Caddisfly 2
Hydropsyche Net-Spinning Caddisfly 2
Larsia Non-Biting Midge 1
Brillia Non-Biting Midges 1
Conchapelopia Non-Biting Midges 1
Lepidostoma Little Brown Sedge Caddisfly 1
Eurylophella Mayfly 1
Diamesa Bloodworm 1
Stilocladius Midge 1
Trissopelopia Non-Biting Midges 1
Eccoptura Yellow Stone Stonefly 1
Anchytarsus Beetle 1
Baetidae Small Minnow Mayfly 1
Hemerodromia Tiny Fly 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.