MBSS Site Summary for: HA-P-141-303-96


Located on WINTERS RUN in the Atkisson Reservoir watershed, 8-digit code: 02130703.
This stream was visited in the spring on 3/25/1996 and again in the summer on 7/24/1996.

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 Fair - 3.3 / 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 12,620 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 1.2 %
Agricultural Land Use 58.3 %
Forested Land Use 40.1 %


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

Physical Stream Habitat
Instream Habitat 14/20 (Suboptimal)
Epifaunal Substrate 12/20 (Suboptimal)
Velocity/Depth Diversity 15/20 (Suboptimal)
Pool Quality
Pool Extent = meters 		15/20 (Suboptimal)
Riffle Quality 14/20 (Suboptimal)
Shading 40 %
Embeddedness 40 %


Stream Water Quality:
Water temperature 18.9 ° C
Dissolved oxygen (DO) 9.6 mg/L
pH (lab) 7.38
Conductivity 129 µmho/cm
Alkalinity
(acid neutralizing capacity) 		275.8 µeq/L
Dissolved organic carbon (DOC) 1.2 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 21 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Common Shiner 257
Bluntnose Minnow 211
River Chub 145
Rosyside Dace 122
Northern Hogsucker 108
Blue Ridge Sculpin 84
Cutlip Minnow 70
Creek Chub 65
White Sucker 39
Swallowtail Shiner 28
Tessellated Darter 22
Fallfish 21
Longnose Dace 15
Margined Madtom 15
Rosyface Shiner 12
Blacknose Dace 6
Smallmouth Bass 4
Least Brook Lamprey 3
Cyprinid Hybrid 2
Bluegill 1
Pumpkinseed 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
No amphibians and reptiles noted.

Crayfish:
Orconectes virilis

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Orthocladius Non-Biting Midges 27
Ephemerella Sulphur Mayfly 17
Cricotopus/Orthocladius Midge 13
Prosimulium Black Fly 9
Stenonema Flatheaded Mayfly 4
Orthocladiinae A Non-Biting Midges 4
Prostoia Spring Stonefly 4
Eurylophella Mayfly 3
Sympotthastia Non-Biting Midges 2
Optioservus Riffle Beetle 1
Oulimnius Riffle Beetle 1
Diploperla 1
Hemerodromia Tiny Fly 1
Lumbriculidae Worm 1
Cheumatopsyche Net-Spinning Caddisfly 1
Diplectrona Net-Spinning Caddisfly 1
Baetis Blue-Winged Olive Mayfly 1
Antocha Crane Fly 1
Corydalus Dobsonfly 1
Chimarra Fingernet 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.