MBSS Site Summary for: LTON-101-B-2008

Site Photos

Field photo showing stream conditions at site LTON-101-B-2008-1 (Opens in a new window) Field photo showing stream conditions at site LTON-101-B-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 Poor - 1.0 / 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 481 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 4.9 %
Agricultural Land Use 15.9 %
Forested Land Use 78.3 %


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 13/20 (Suboptimal)
Velocity/Depth Diversity 9/20 (Marginal)
Pool Quality
Pool Extent = 56 meters 		10/20 (Marginal)
Riffle Quality
Riffle Extent = 22 meters 		9/20 (Marginal)
Shading 70 %
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 17.4 ° C
Dissolved oxygen (DO) 7.3 mg/L
pH (lab) 6.86
Conductivity 138 µmho/cm
Alkalinity
(acid neutralizing capacity) 		147.3 µeq/L
Dissolved organic carbon (DOC) 1.6992 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 1 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
No Fish Observed 0
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Dusky Salamander

Crayfish:
Cambarus bartonii bartonii

Exotic Plants:
Garlic Mustard
Japanese Barberry
Japanese Honeysuckle
Japanese Stiltgrass
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Prosimulium Black Fly 19
Ephemerella Sulphur Mayfly 13
Amphinemura Spring Stonefly 11
Ameletus Combmouthed Minnow Mayfly 10
Heptageniidae Flathead Mayfly 6
Perlodidae Perlodid Stonefly 5
Eurylophella Mayfly 4
Parametriocnemus Non-Biting Midges 4
Isoperla Stripetail Stonefly 3
Orthocladiinae Midge 3
Chloroperlidae Green Stonefly 3
Leuctra  Rolled-Winged Stonefly 3
Ceratopogon Biting Midge 3
Pseudolimnophila Crane Fly 2
Stegopterna Black Fly 2
Neophylax Caddisfly 2
Nemouridae Nemourid Stonefly 2
Parachaetocladius Non-Biting Midge 1
Diplocladius Non-Biting Midges 1
Orthocladius Non-Biting Midges 1
Epeorus Mayfly 1
Leptophlebiidae Pronggilled Mayfly 1
Cinygmula Dark Red Quill Mayfly 1
Taenionema 1
Physa Air-Breathing Freshwater Snail 1
Ectopria Water Penny Beetle 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.