MBSS Site Summary for: LTON-202-R-2008

Site Photos

Field photo showing stream conditions at site LTON-202-R-2008-1 (Opens in a new window) Field photo showing stream conditions at site LTON-202-R-2008-2 (Opens in a new window)

Located on UT LITTLE TONOLOWAY CREEK in the Little Tonoloway Creek watershed, 8-digit code: 02140509.
This stream was visited in the spring on 3/19/2008 and again in the summer on 6/16/2008.

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 - 3.0 / 5.0
Benthic IBI Fair - 3.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 2,380 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 4.4 %
Agricultural Land Use 10.2 %
Forested Land Use 84.9 %


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

Physical Stream Habitat
Instream Habitat 14/20 (Suboptimal)
Epifaunal Substrate 9/20 (Marginal)
Velocity/Depth Diversity 12/20 (Suboptimal)
Pool Quality
Pool Extent = 62 meters 		13/20 (Suboptimal)
Riffle Quality
Riffle Extent = 32 meters 		12/20 (Suboptimal)
Shading 40 %
Embeddedness 99 %
The embeddedness, a measure of silt on the stream bottom, was 99%. This is very high, and may adversely affect biotic communities.


Stream Water Quality:
Water temperature 20.8 ° C
Dissolved oxygen (DO) 7.4 mg/L
pH (lab) 7.13
Conductivity 151 µmho/cm
Alkalinity
(acid neutralizing capacity) 		299.3 µeq/L
Dissolved organic carbon (DOC) 1.7156 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 30
Creek Chub 23
Bluegill 8
Fantail Darter 6
Pumpkinseed 2
White Sucker 2
Brown Bullhead 1
Green Sunfish 1
Yellow Bullhead 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog

Crayfish:
Orconectes virilis

Exotic Plants:
Garlic Mustard
Japanese Honeysuckle
Japanese Stiltgrass
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Ameletus Combmouthed Minnow Mayfly 31
Prosimulium Black Fly 8
Orthocladiinae Midge 7
Nemouridae Nemourid Stonefly 6
Prostoia Spring Stonefly 6
Isoperla Stripetail Stonefly 5
Rhyacophila Free-Living Caddisfly 5
Parametriocnemus Non-Biting Midges 4
Neophylax Caddisfly 3
Hydrobaenus Midge 3
Perlodidae Perlodid Stonefly 2
Corynoneura Non-Biting Midges 2
Centroptilum Small Minnow Mayfly 2
Capniidae Small Winter Stonefly 2
Orthocladius Non-Biting Midges 2
Amphinemura Spring Stonefly 1
Diplocladius Non-Biting Midges 1
Pisidiidae Pill Clam 1
Ephemerella Sulphur Mayfly 1
Lumbriculidae Worm 1
Clioperla Green-Winged Stonefly 1
Cheumatopsyche Net-Spinning Caddisfly 1
Stilocladius Midge 1
Stegopterna Black Fly 1
Diamesa Bloodworm 1
Stenonema Flatheaded Mayfly 1
Physa Air-Breathing Freshwater Snail 1
Clinocera Aquatic Dance Fly 1
Helichus Beetle 1
Stenelmis Beetle 1
Bezzia Biting Midge 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.