MBSS Site Summary for: LTON-113-R-2000

Site Photos

Field photo showing stream conditions at site LTON-113-R-2000-01 (Opens in a new window)

Located on LITTLE TONOLOWAY CR UT1 in the Little Tonoloway Creek watershed, 8-digit code: 02140509.
This stream was visited in the spring on 3/30/2000 and again in the summer on 8/9/2000.

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 - 3.3 / 5.0
Benthic IBI Poor - 2.5 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 1,264 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0.1 %
Agricultural Land Use 45.2 %
Forested Land Use 54.7 %


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 12/20 (Suboptimal)
Pool Quality
Pool Extent = 30 meters 		14/20 (Suboptimal)
Riffle Quality
Riffle Extent = 50 meters 		7/20 (Marginal)
Shading 75 %
Embeddedness 45 %


Stream Water Quality:
Water temperature 22.9 ° C
Dissolved oxygen (DO) 7.7 mg/L
pH (lab) 8.28
Conductivity 400 µmho/cm
Alkalinity
(acid neutralizing capacity) 		3871 µeq/L
Dissolved organic carbon (DOC) 2.4 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 9 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 128
Creek Chub 52
Bluntnose Minnow 48
Fantail Darter 33
Bluegill 4
Goldfish 4
Central Stoneroller 3
Potomac Sculpin 2
White Sucker 2
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog

Crayfish:
No crayfish noted.

Exotic Plants:
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Amphinemura Spring Stonefly 54
Simulium Black Fly 10
Chimarra Fingernet Caddisfly 5
Stenelmis Beetle 4
Diphetor Mayfly 4
Polypedilum Non-Biting Midges 4
Tanytarsus Non-Biting Midges 3
Thienemanniella Non-Biting Midges 3
Cricotopus/Orthocladius Midge 3
Stenonema Flatheaded Mayfly 3
Cheumatopsyche Net-Spinning Caddisfly 2
Conchapelopia Non-Biting Midges 2
Corynoneura Non-Biting Midges 1
Orthocladius Non-Biting Midges 1
Ceratopogonidae Biting Midge 1
Prosimulium Black Fly 1
Optioservus Riffle Beetle 1
Rheosmittia Non-Biting Midges 1
Prostoia Spring 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.