MBSS Site Summary for: LTON-102-R-2000

Site Photos

Field photo showing stream conditions at site LTON-102-R-2000-01 (Opens in a new window)

Located on LITTLE TONOLOWAY CR UT2 in the Little Tonoloway Creek watershed, 8-digit code: 02140509.
This stream was visited in the spring on 3/30/2000 and again in the summer on 8/3/2000.

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 645 acres Cows standing in a stream at a site with high agricultural land use. Cows survey the sampling procedure at this extreme example of a highly agriculturalized site.
Urban Land Use 2.3 %
Agricultural Land Use 65.7 %
Forested Land Use 31 %


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

Physical Stream Habitat
Instream Habitat 13/20 (Suboptimal)
Epifaunal Substrate 13/20 (Suboptimal)
Velocity/Depth Diversity 10/20 (Marginal)
Pool Quality
Pool Extent = 45 meters 		10/20 (Marginal)
Riffle Quality
Riffle Extent = 35 meters 		12/20 (Suboptimal)
Shading 80 %
Embeddedness 20 %


Stream Water Quality:
Water temperature 19.1 ° C
Dissolved oxygen (DO) 8.4 mg/L
pH (lab) 8.05
Conductivity 200 µmho/cm
Alkalinity
(acid neutralizing capacity) 		3933 µeq/L
Dissolved organic carbon (DOC) 1.6 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 90
Fantail Darter 19
Bluegill 2
Potomac Sculpin 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
No amphibians and reptiles noted.

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 91
Simulium Black Fly 11
Optioservus Riffle Beetle 6
Isotomurus Elongate-Bodied Springtail 4
Gammarus Amphipod 2
Naididae Aquatic Worm 2
Tubificidae Aquatic Worm 1
Prosimulium Black Fly 1
Baetidae Small Minnow Mayfly 1
Allocapnia Small Winter Stonefly 1
Pseudolimnophila Crane Fly 1
Rhyacophila Free-Living Caddisfly 1
Girardia Freshwater Flatworm 1
Clioperla Green-Winged Stonefly 1
Caecidotea Isopod 1
Corynoneura Non-Biting Midges 1
Nanocladius Non-Biting Midges 1
Parametriocnemus Non-Biting Midges 1
Tanytarsus Non-Biting Midges 1
Isoperla Stripetail 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.