MBSS Site Summary for: HA-N-068-301-96


Located on BYNUM RUN in the Bynum Run watershed, 8-digit code: 02130704.
This stream was visited in the spring on 3/26/1996 and again in the summer on 7/15/1996.

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 Poor - 1.7 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 8,329 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 19.5 %
Agricultural Land Use 52.9 %
Forested Land Use 27.3 %


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

Physical Stream Habitat
Instream Habitat 18/20 (Optimal)
Epifaunal Substrate 17/20 (Optimal)
Velocity/Depth Diversity 16/20 (Optimal)
Pool Quality
Pool Extent = meters 		16/20 (Optimal)
Riffle Quality 16/20 (Optimal)
Shading 70 %
Embeddedness 35 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 21.2 ° C
Dissolved oxygen (DO) 10 mg/L
pH (lab) 7.66
Conductivity 185 µmho/cm
Alkalinity
(acid neutralizing capacity) 		807.1 µeq/L
Dissolved organic carbon (DOC) 2.4 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 19 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Northern Hogsucker 61
Common Shiner 54
White Sucker 48
American Eel 36
River Chub 36
Cutlip Minnow 32
Blue Ridge Sculpin 21
Redbreast Sunfish 19
Swallowtail Shiner 18
Margined Madtom 14
Tessellated Darter 14
Creek Chub 8
Smallmouth Bass 8
Bluegill 7
Satinfin Shiner 5
Longnose Dace 4
Rosyside Dace 4
Largemouth Bass 1
Sea Lamprey 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog

Crayfish:
Orconectes limosus

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Cricotopus/Orthocladius Midge 61
Cheumatopsyche Net-Spinning Caddisfly 8
Eurylophella Mayfly 5
Stenonema Flatheaded Mayfly 4
Chimarra Fingernet Caddisfly 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.