MBSS Site Summary for: HA-P-164-306-96


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 7/16/1996.

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 Fair - 3.7 / 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 6,904 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 21.8 %
Agricultural Land Use 51.3 %
Forested Land Use 26.7 %


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

Physical Stream Habitat
Instream Habitat 12/20 (Suboptimal)
Epifaunal Substrate 5/20 (Poor)
Velocity/Depth Diversity 13/20 (Suboptimal)
Pool Quality
Pool Extent = meters 		13/20 (Suboptimal)
Riffle Quality 13/20 (Suboptimal)
Shading 60 %
Embeddedness 80 %
The embeddedness, a measure of silt on the stream bottom, was 80%. This is relatively high, and may exclude some biota.


Stream Water Quality:
Water temperature 22.8 ° C
Dissolved oxygen (DO) 10.2 mg/L
pH (lab) 8.19
Conductivity 207 µmho/cm
Alkalinity
(acid neutralizing capacity) 		855.6 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 20 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
White Sucker 86
Creek Chub 41
Cutlip Minnow 37
Redbreast Sunfish 36
Swallowtail Shiner 34
Rosyside Dace 32
Tessellated Darter 30
American Eel 23
Margined Madtom 22
Common Shiner 20
Green Sunfish 14
Bluegill 11
Northern Hogsucker 10
Blue Ridge Sculpin 7
Largemouth Bass 7
Pumpkinseed 5
River Chub 5
Creek Chubsucker 3
Blacknose Dace 1
Sea Lamprey 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Pickerel Frog

Crayfish:
Orconectes limosus

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 84
Eurylophella Mayfly 3
Centroptilum Small Minnow Mayfly 2
Stenelmis Beetle 2
Cricotopus/Orthocladius Midge 2
Argia Narrow-Winged Damselfly 1
Cheumatopsyche Net-Spinning Caddisfly 1
Nanocladius Non-Biting Midges 1
Antocha Crane Fly 1
Stenonema Flatheaded Mayfly 1
Caenis Mayfly 1
Stenacron Mayfly 1
Dubiraphia Riffle Beetle 1
Optioservus Riffle Beetle 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.