MBSS Site Summary for: HA-N-099-305-96


Located on BYNUM RUN in the Bynum Run watershed, 8-digit code: 02130704.
This stream was visited in the spring on 3/27/1996 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 Poor - 1.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 13,326 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 15.6 %
Agricultural Land Use 51.9 %
Forested Land Use 31.6 %


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 13/20 (Suboptimal)
Velocity/Depth Diversity 18/20 (Optimal)
Pool Quality
Pool Extent = meters 		15/20 (Suboptimal)
Riffle Quality 17/20 (Optimal)
Shading 60 %
Embeddedness 40 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 22.8 ° C
Dissolved oxygen (DO) 10.3 mg/L
pH (lab) 8.35
Conductivity 181 µmho/cm
Alkalinity
(acid neutralizing capacity) 		666.3 µeq/L
Dissolved organic carbon (DOC) 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 177
Swallowtail Shiner 90
Northern Hogsucker 81
Cutlip Minnow 75
Satinfin Shiner 68
Margined Madtom 65
American Eel 52
Blue Ridge Sculpin 52
River Chub 30
Tessellated Darter 30
Bluegill 17
Longnose Dace 16
Creek Chub 14
Redbreast Sunfish 10
Rosyside Dace 10
Blacknose Dace 7
Largemouth Bass 4
White Sucker 4
Pumpkinseed 2
Sea Lamprey 2
Smallmouth Bass 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Dusky Salamander
Northern Green Frog
Pickerel Frog

Crayfish:
No crayfish noted.

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Orthocladiinae A Non-Biting Midges 67
Orthocladius Non-Biting Midges 14
Cricotopus/Orthocladius Midge 9
Cheumatopsyche Net-Spinning Caddisfly 2
Isonychia Slate Drake Mayfly 2
Naididae Aquatic Worm 1
Tanytarsini Non-Biting Midges 1
Cryptochironomus Non-Biting Midges 1
Eukiefferiella Non-Biting Midges 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.