MBSS Site Summary for: LTON-108-R-2000

Site Photos

Field photo showing stream conditions at site LTON-108-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 801 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0.1 %
Agricultural Land Use 39.8 %
Forested Land Use 60.1 %


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

Physical Stream Habitat
Instream Habitat 8/20 (Marginal)
Epifaunal Substrate 3/20 (Poor)
Velocity/Depth Diversity 6/20 (Marginal)
Pool Quality
Pool Extent = 50 meters 		4/20 (Poor)
Riffle Quality
Riffle Extent = 30 meters 		9/20 (Marginal)
Shading 85 %
Embeddedness 55 %
The embeddedness, a measure of silt on the stream bottom, was 55%. This is relatively high, and may exclude some biota.


Stream Water Quality:
Water temperature 23.1 ° C
Dissolved oxygen (DO) 7.2 mg/L
pH (lab) 8.11
Conductivity 200 µmho/cm
Alkalinity
(acid neutralizing capacity) 		3468 µeq/L
Dissolved organic carbon (DOC) 2.7 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 5 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 160
Creek Chub 121
Fantail Darter 55
Bluntnose Minnow 44
Central Stoneroller 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog

Crayfish:
No crayfish noted.

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Amphinemura Spring Stonefly 22
Stenelmis Beetle 13
Stenonema Flatheaded Mayfly 10
Rheocricotopus Non-Biting Midges 10
Thienemanniella Non-Biting Midges 9
Simulium Black Fly 9
Cheumatopsyche Net-Spinning Caddisfly 5
Conchapelopia Non-Biting Midges 3
Gomphidae Clubtail Dragonfly 3
Chimarra Fingernet Caddisfly 3
Polypedilum Non-Biting Midges 3
Tvetenia Non-Biting Midges 2
Optioservus Riffle Beetle 2
Corynoneura Non-Biting Midges 2
Tabanidae Horse Fly 2
Nigronia Megaloptera (Dark Fishfly) 1
Cricotopus/Orthocladius Midge 1
Rhyacophila Free-Living Caddisfly 1
Girardia Freshwater Flatworm 1
Cryptochironomus Non-Biting Midges 1
Micropsectra Non-Biting Midges 1
Tipula Crane Fly 1
Diamesa Bloodworm 1
Ceratopogonidae Biting Midge 1
Clinocera Aquatic Dance Fly 1
Tubificidae Aquatic Worm 1
Stempellinella Non-Biting Midges 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.