MBSS Site Summary for: LTON-113-R-2002

Site Photos

Field photo showing stream conditions at site LTON-113-R-2002-1 (Opens in a new window) Field photo showing stream conditions at site LTON-113-R-2002-2 (Opens in a new window) Field photo showing stream conditions at site LTON-113-R-2002-3 (Opens in a new window)

Located on SAWMILL HOLLOW in the Little Tonoloway Creek watershed, 8-digit code: 02140509.
This stream was visited in the spring on 3/25/2002 and again in the summer on 6/20/2002.

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 - 1.0 / 5.0
Benthic IBI Poor - 1.8 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 89 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 10 %
Agricultural Land Use 6 %
Forested Land Use 84 %


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

Physical Stream Habitat
Instream Habitat 6/20 (Marginal)
Epifaunal Substrate 10/20 (Marginal)
Velocity/Depth Diversity 6/20 (Marginal)
Pool Quality
Pool Extent = 55 meters 		4/20 (Poor)
Riffle Quality
Riffle Extent = 20 meters 		6/20 (Marginal)
Shading 95 %
Embeddedness 50 %


Stream Water Quality:
Water temperature 17.8 ° C
Dissolved oxygen (DO) 7.7 mg/L
pH (lab) 4.35
Conductivity 1050 µmho/cm
Alkalinity
(acid neutralizing capacity) 		-51.3 µeq/L
Dissolved organic carbon (DOC) 2.2 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 1 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
No Fish Observed 0
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Northern Green Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Stiltgrass
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Micropsectra Non-Biting Midges 55
Chaetocladius Non-Biting Midges 15
Polycentropus Tube Maker Caddisfly 10
Parametriocnemus Non-Biting Midges 8
Culicoides 5
Paraphaenocladius Non-Biting Midges 4
Rheocricotopus Non-Biting Midges 4
Corynoneura Non-Biting Midges 3
Ceratopogon Biting Midge 1
Probezzia Biting Midges 1
Hexatoma Crane Fly 1
Tipula Crane Fly 1
Odonata Dragonfly, Damselfly 1
Nigronia Megaloptera (Dark Fishfly) 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.