MBSS Site Summary for: WA-A-003-308-95


Located on LITTLE TONOLOWAY CR UT1 in the Little Tonoloway Creek watershed, 8-digit code: 02140509.
This stream was visited in the spring on 3/17/1995 and again in the summer on 6/13/1995.

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 Good - 4.3 / 5.0
Benthic IBI Good - 4.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 5,004 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 5 %
Agricultural Land Use 13.5 %
Forested Land Use 81 %


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

Physical Stream Habitat
Instream Habitat 5/20 (Poor)
Epifaunal Substrate 5/20 (Poor)
Velocity/Depth Diversity 7/20 (Marginal)
Pool Quality
Pool Extent = meters 		16/20 (Optimal)
Riffle Quality 11/20 (Suboptimal)
Shading 90 %
Embeddedness 25 %


Stream Water Quality:
Water temperature 16.5 ° C
Dissolved oxygen (DO) 8.3 mg/L
pH (lab) 7.34
Conductivity 255 µmho/cm
Alkalinity
(acid neutralizing capacity) 		335.6 µeq/L
Dissolved organic carbon (DOC) 3 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 6 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 297
Potomac Sculpin 117
Fantail Darter 102
Creek Chub 19
White Sucker 2
Central Stoneroller 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Chimarra Fingernet Caddisfly 39
Amphinemura Spring Stonefly 26
Parametriocnemus Non-Biting Midges 15
Rhyacophila Free-Living Caddisfly 9
Neophylax Caddisfly 9
Prosimulium Black Fly 7
Eukiefferiella Non-Biting Midges 7
Prostoia Spring Stonefly 7
Cinygmula Dark Red Quill Mayfly 6
Cheumatopsyche Net-Spinning Caddisfly 4
Oemopteryx Stonefly 4
Glossosomatidae Saddlecase Maker Caddisfly 4
Polypedilum Non-Biting Midges 3
Perlodidae Perlodid Stonefly 3
Conchapelopia Non-Biting Midges 3
Stegopterna Black Fly 3
Ameletus Combmouthed Minnow Mayfly 3
Stenelmis Beetle 3
Clinocera Aquatic Dance Fly 2
Baetis Blue-Winged Olive Mayfly 2
Micropsectra Non-Biting Midges 2
Hydropsyche Net-Spinning Caddisfly 2
Epeorus Mayfly 1
Microtendipes Non-Biting Midges 1
Physa Air-Breathing Freshwater Snail 1
Probezzia Biting Midges 1
Optioservus Riffle Beetle 1
Rheotanytarsus Non-Biting Midges 1
Ephemerella Sulphur Mayfly 1
Lumbriculidae Worm 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.