MBSS Site Summary for: HA-N-068-308-96


Located on BYNUM RUN in the Bynum Run watershed, 8-digit code: 02130704.
This stream was visited in the spring on 3/25/1996 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 - 1.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 8,422 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 19.3 %
Agricultural Land Use 52.7 %
Forested Land Use 27.7 %


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 17/20 (Optimal)
Velocity/Depth Diversity 10/20 (Marginal)
Pool Quality
Pool Extent = meters 		10/20 (Marginal)
Riffle Quality 17/20 (Optimal)
Shading 75 %
Embeddedness 25 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 21 ° C
Dissolved oxygen (DO) 10 mg/L
pH (lab) 8.24
Conductivity 178 µmho/cm
Alkalinity
(acid neutralizing capacity) 		784.3 µeq/L
Dissolved organic carbon (DOC) 2.1 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 18 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blue Ridge Sculpin 165
Longnose Dace 58
Margined Madtom 57
Cutlip Minnow 48
Rosyside Dace 48
American Eel 38
River Chub 36
Blacknose Dace 32
Creek Chub 28
Common Shiner 26
Swallowtail Shiner 24
Tessellated Darter 9
White Sucker 4
Northern Hogsucker 3
Bluegill 2
Satinfin Shiner 2
Cyprinid Hybrid 1
Green Sunfish 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern American Toad
Northern Dusky Salamander

Crayfish:
Cambarus bartonii bartonii

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Cricotopus/Orthocladius Midge 110
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.