MBSS Site Summary for: WA-A-139-235-95


Located on LITTLE TONOLOWAY CR UT2 in the Little Tonoloway Creek watershed, 8-digit code: 02140509.
This stream was visited in the spring on 3/17/1995 and again in the summer on 6/14/1995.

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 Fair - 3.8 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 720 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0.1 %
Agricultural Land Use 26.6 %
Forested Land Use 73.5 %


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

Physical Stream Habitat
Instream Habitat 11/20 (Suboptimal)
Epifaunal Substrate 5/20 (Poor)
Velocity/Depth Diversity 6/20 (Marginal)
Pool Quality
Pool Extent = meters 		12/20 (Suboptimal)
Riffle Quality 7/20 (Marginal)
Shading 90 %
Embeddedness 50 %


Stream Water Quality:
Water temperature 16 ° C
Dissolved oxygen (DO) 8.2 mg/L
pH (lab) 8.08
Conductivity 380 µmho/cm
Alkalinity
(acid neutralizing capacity) 		3384 µeq/L
Dissolved organic carbon (DOC) 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 4 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 139
Creek Chub 59
Fantail Darter 10
Potomac Sculpin 7
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern Box Turtle
Northern Two-Lined Salamander
Pickerel Frog

Crayfish:
Cambarus

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Diphetor Mayfly 36
Amphinemura Spring Stonefly 26
Crangonyx Amphipod 22
Optioservus Riffle Beetle 13
Tanytarsus Non-Biting Midges 12
Conchapelopia Non-Biting Midges 3
Parametriocnemus Non-Biting Midges 3
Prosimulium Black Fly 3
Prostoia Spring Stonefly 3
Neophylax Caddisfly 2
Tipula Crane Fly 2
Wormaldia Fingernet Caddisfly 2
Stenonema Flatheaded Mayfly 2
Rhyacophila Free-Living Caddisfly 2
Allocapnia Small Winter Stonefly 2
Thienemanniella Non-Biting Midges 1
Tvetenia Non-Biting Midges 1
Nigronia Megaloptera (Dark Fishfly) 1
Cheumatopsyche Net-Spinning Caddisfly 1
Clioperla Green-Winged Stonefly 1
Ameletus Combmouthed Minnow Mayfly 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.