MBSS Site Summary for: LTON-210-R-2002

Site Photos

Field photo showing stream conditions at site LTON-210-R-2002-1 (Opens in a new window) Field photo showing stream conditions at site LTON-210-R-2002-2 (Opens in a new window) Field photo showing stream conditions at site LTON-210-R-2002-3 (Opens in a new window) Field photo showing stream conditions at site LTON-210-R-2002-4 (Opens in a new window)

Located on LITTLE TONOLOWAY CR in the Little Tonoloway Creek watershed, 8-digit code: 02140509.
This stream was visited in the spring on 3/7/2002 and again in the summer on 6/20/2002.

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 - 3.7 / 5.0
Benthic IBI Poor - 2.8 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 3,918 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 8 %
Agricultural Land Use 8 %
Forested Land Use 82 %


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 14/20 (Suboptimal)
Velocity/Depth Diversity 5/20 (Poor)
Pool Quality
Pool Extent = 40 meters 		10/20 (Marginal)
Riffle Quality
Riffle Extent = 35 meters 		6/20 (Marginal)
Shading 80 %
Embeddedness 40 %


Stream Water Quality:
Water temperature 17.5 ° C
Dissolved oxygen (DO) 9.1 mg/L
pH (lab) 7.34
Conductivity 310 µmho/cm
Alkalinity
(acid neutralizing capacity) 		604.7 µeq/L
Dissolved organic carbon (DOC) 2.2 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 250
Fantail Darter 76
Potomac Sculpin 29
Bluegill 16
Pumpkinseed 5
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Dusky Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Parametriocnemus Non-Biting Midges 15
Hydrobaenus Midge 11
Cheumatopsyche Net-Spinning Caddisfly 9
Amphinemura Spring Stonefly 6
Chimarra Fingernet Caddisfly 5
Prostoia Spring Stonefly 4
Tanytarsini Non-Biting Midges 4
Tvetenia Non-Biting Midges 3
Paracapnia Small Winter Stonefly 3
Corynoneura Non-Biting Midges 3
Hydropsyche Net-Spinning Caddisfly 3
Rhyacophila Free-Living Caddisfly 3
Molannodes 3
Stegopterna Black Fly 3
Lumbriculidae Worm 3
Neophylax Caddisfly 2
Prosimulium Black Fly 2
Paranemoura 2
Isotomurus Elongate-Bodied Springtail 2
Heterotrissocladius European Non-Biting Midge 2
Diplectrona Net-Spinning Caddisfly 2
Diplocladius Non-Biting Midges 1
Orthocladius Non-Biting Midges 1
Ablabesmyia Non-Biting Midge 1
Chironomini Non-Biting Midge 1
Conchapelopia Non-Biting Midges 1
Taeniopteryx Winter Stonefly 1
Thienemanniella Non-Biting Midges 1
Tanypodinae Non-Biting Midges 1
Sphaerium Fingernail Clam 1
Orthocladiinae Midge 1
Girardia Freshwater Flatworm 1
Clioperla Green-Winged Stonefly 1
Dolophilodes Medium Evening Sedge Caddisfly 1
Nigronia Megaloptera (Dark Fishfly) 1
Sialis Alderfly 1
Stenelmis Beetle 1
Probezzia Biting Midges 1
Limnephilus 1
Gomphidae Clubtail Dragonfly 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.