MBSS Site Summary for: LSUS-109-R-2004

Site Photos

Field photo showing stream conditions at site LSUS-109-R-2004-77 (Opens in a new window) Field photo showing stream conditions at site LSUS-109-R-2004-78 (Opens in a new window) Field photo showing stream conditions at site LSUS-109-R-2004-79 (Opens in a new window)

Located on SUSQUEHANNA R UT 2 in the L Susquehanna River watershed, 8-digit code: 02120201.
This stream was visited in the spring on 3/30/2004 and again in the summer on 7/29/2004.

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 - 2.7 / 5.0
Benthic IBI Poor - 1.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 592 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 39 %
Agricultural Land Use 33 %
Forested Land Use 22 %


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 18/20 (Optimal)
Velocity/Depth Diversity 14/20 (Suboptimal)
Pool Quality
Pool Extent = 23 meters 		13/20 (Suboptimal)
Riffle Quality
Riffle Extent = 62 meters 		17/20 (Optimal)
Shading 95 %
Embeddedness 5 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 20.9 ° C
Dissolved oxygen (DO) 8.4 mg/L
pH (lab) 7.38
Conductivity 267 µmho/cm
Alkalinity
(acid neutralizing capacity) 		452.6 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 5 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 48
American Eel 26
Creek Chub 2
Rosyside Dace 2
Tessellated Darter 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Mile-A-Minute
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Diamesa Bloodworm 54
Orthocladius Non-Biting Midges 28
Hydrobaenus Midge 18
Cricotopus Non-Biting Midges 12
Diamesinae Non-Biting Midges 3
Orthocladiinae Midge 2
Antocha Crane Fly 1
Parametriocnemus Non-Biting Midges 1
Gammarus Amphipod 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.