MBSS Site Summary for: CE-P-051-108-97


Located on SUSQUEHANNA R UT1 in the L Susquehanna River watershed, 8-digit code: 02120201.
This stream was visited in the spring on 3/4/1997 and again in the summer on 7/9/1997.

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 Poor - 1.3 / 5.0
Benthic IBI Poor - 2.7 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 181 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 0 %
Agricultural Land Use 63.5 %
Forested Land Use 35.9 %


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

Physical Stream Habitat
Instream Habitat 15/20 (Suboptimal)
Epifaunal Substrate 13/20 (Suboptimal)
Velocity/Depth Diversity 6/20 (Marginal)
Pool Quality
Pool Extent = meters 		13/20 (Suboptimal)
Riffle Quality 8/20 (Marginal)
Shading 80 %
Embeddedness 20 %


Stream Water Quality:
Water temperature 16.2 ° C
Dissolved oxygen (DO) 10.1 mg/L
pH (lab) 6.76
Conductivity 132 µmho/cm
Alkalinity
(acid neutralizing capacity) 		361.7 µeq/L
Dissolved organic carbon (DOC) 7.3 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 1 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 99
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern American Toad
Northern Red Salamander
Northern Two-Lined 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
Crangonyx Amphipod 77
Gammarus Amphipod 21
Baetis Blue-Winged Olive Mayfly 19
Ephemerella Sulphur Mayfly 5
Optioservus Riffle Beetle 2
Leuctra  Rolled-Winged Stonefly 1
Stenonema Flatheaded Mayfly 1
Eurylophella 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.