MBSS Site Summary for: LSUS-119-R-2004

Site Photos

Field photo showing stream conditions at site LSUS-119-R-2004-85 (Opens in a new window) Field photo showing stream conditions at site LSUS-119-R-2004-86 (Opens in a new window) Field photo showing stream conditions at site LSUS-119-R-2004-87 (Opens in a new window)

Located on HAPPY VALLEY BR 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 7/15/2004.

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 - 2.0 / 5.0
Benthic IBI Good - 4.7 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 565 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 21 %
Agricultural Land Use 29 %
Forested Land Use 47 %


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

Physical Stream Habitat
Instream Habitat 14/20 (Suboptimal)
Epifaunal Substrate 14/20 (Suboptimal)
Velocity/Depth Diversity 11/20 (Suboptimal)
Pool Quality
Pool Extent = 30 meters 		11/20 (Suboptimal)
Riffle Quality
Riffle Extent = 48 meters 		12/20 (Suboptimal)
Shading 95 %
Embeddedness 25 %


Stream Water Quality:
Water temperature 19.2 ° C
Dissolved oxygen (DO) 8.3 mg/L
pH (lab) 7.52
Conductivity 179 µmho/cm
Alkalinity
(acid neutralizing capacity) 		546.5 µeq/L
Dissolved organic carbon (DOC) 1.6 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 2 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 163
American Eel 27
Biologists sampling fish communities.
Electrofishing to sample fish communities.

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

Crayfish:
Cambaridae

Exotic Plants:
Japanese Honeysuckle
Japanese Stiltgrass
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Ephemerella Sulphur Mayfly 43
Amphinemura Spring Stonefly 23
Baetis Blue-Winged Olive Mayfly 20
Prosimulium Black Fly 9
Ameletus Combmouthed Minnow Mayfly 9
Gammarus Amphipod 7
Perlodidae Perlodid Stonefly 3
Sweltsa Stonefly 3
Cheumatopsyche Net-Spinning Caddisfly 2
Antocha Crane Fly 2
Epeorus Mayfly 2
Nigronia Megaloptera (Dark Fishfly) 1
Stegopterna Black Fly 1
Neophylax Caddisfly 1
Diplectrona Net-Spinning Caddisfly 1
Eccoptura Yellow Stone Stonefly 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.