MBSS Site Summary for: PRET-108-R-2000

Site Photos

Field photo showing stream conditions at site PRET-108-R-2000-01 (Opens in a new window)

Located on COMPASS RUN 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 6/8/2000.

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 - 3.3 / 5.0
Benthic IBI Good - 4.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 420 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 68.8 %
Forested Land Use 31.2 %


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

Physical Stream Habitat
Instream Habitat 17/20 (Optimal)
Epifaunal Substrate 16/20 (Optimal)
Velocity/Depth Diversity 7/20 (Marginal)
Pool Quality
Pool Extent = 9 meters 		6/20 (Marginal)
Riffle Quality
Riffle Extent = 66 meters 		12/20 (Suboptimal)
Shading 90 %
Embeddedness 10 %


Stream Water Quality:
Water temperature 15.3 ° C
Dissolved oxygen (DO) 9.5 mg/L
pH (lab) 7.1
Conductivity 190 µmho/cm
Alkalinity
(acid neutralizing capacity) 		225.4 µeq/L
Dissolved organic carbon (DOC) 1.3 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 4 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 123
Blue Ridge Sculpin 110
Longnose Dace 3
Creek Chub 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Dusky Salamander
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Mile-A-Minute
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Prosimulium Black Fly 19
Sympotthastia Non-Biting Midges 18
Epeorus Mayfly 9
Paraleptophlebia Blue Quill Mayfly 8
Ephemerella Sulphur Mayfly 7
Eukiefferiella Non-Biting Midges 6
Micropsectra Non-Biting Midges 5
Amphinemura Spring Stonefly 4
Corynoneura Non-Biting Midges 3
Acerpenna Tiny Blue-Winged Olive Mayflies 3
Stempellinella Non-Biting Midges 3
Stilocladius Midge 3
Diplectrona Net-Spinning Caddisfly 2
Parametriocnemus Non-Biting Midges 2
Eurylophella Mayfly 2
Cricotopus/Orthocladius Midge 2
Prostoia Spring Stonefly 2
Trissopelopia Non-Biting Midges 2
Perlodidae Perlodid Stonefly 1
Optioservus Riffle Beetle 1
Leuctridae Rolledwinged Stonefly 1
Allocapnia Small Winter Stonefly 1
Cricotopus Non-Biting Midges 1
Tubificidae Aquatic Worm 1
Probezzia Biting Midges 1
Hexatoma Crane Fly 1
Tipula Crane Fly 1
Paraphaenocladius Non-Biting Midges 1
Conchapelopia Non-Biting Midges 1
Lype Net Tube 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.