MBSS Site Summary for: PRET-109-R-2000

Site Photos

Field photo showing stream conditions at site PRET-109-R-2000-01 (Opens in a new window)

Located on GEORGE'S 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 6/14/2000.

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 Good - 4.3 / 5.0
Benthic IBI Poor - 2.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
(Hint: Screen readers will announce definitions; mouse users can hover over dotted text.)
Catchment area 1,682 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 3.5 %
Agricultural Land Use 84.4 %
Forested Land Use 11.8 %


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

Physical Stream Habitat
Instream Habitat 16/20 (Optimal)
Epifaunal Substrate 16/20 (Optimal)
Velocity/Depth Diversity 16/20 (Optimal)
Pool Quality
Pool Extent = 22 meters 		17/20 (Optimal)
Riffle Quality
Riffle Extent = 53 meters 		17/20 (Optimal)
Shading 85 %
Embeddedness 20 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 16.7 ° C
Dissolved oxygen (DO) 8.9 mg/L
pH (lab) 7.26
Conductivity 200 µmho/cm
Alkalinity
(acid neutralizing capacity) 		382.6 µeq/L
Dissolved organic carbon (DOC) 1.9 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 12 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 460
Blue Ridge Sculpin 321
Rosyside Dace 214
Bluntnose Minnow 66
White Sucker 62
Central Stoneroller 52
Creek Chub 40
Fantail Darter 33
Longnose Dace 23
Green Sunfish 7
Common Shiner 6
Yellow Bullhead 2
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
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
Cricotopus/Orthocladius Midge 67
Optioservus Riffle Beetle 10
Prosimulium Black Fly 8
Chimarra Fingernet Caddisfly 5
Cheumatopsyche Net-Spinning Caddisfly 4
Eurylophella Mayfly 4
Sympotthastia Non-Biting Midges 4
Parametriocnemus Non-Biting Midges 3
Tvetenia Non-Biting Midges 2
Thienemanniella Non-Biting Midges 2
Eukiefferiella Non-Biting Midges 2
Brillia Non-Biting Midges 2
Conchapelopia Non-Biting Midges 1
Trissopelopia Non-Biting Midges 1
Diplectrona Net-Spinning Caddisfly 1
Dicranota Hairy-Eyed Cranefly 1
Diamesa Bloodworm 1
Clinocera Aquatic Dance Fly 1
Stenelmis Beetle 1
Probezzia Biting Midges 1
Oulimnius Riffle Beetle 1
Isonychia Slate Drake Mayfly 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.