MBSS Site Summary for: LTON-205-R-2002

Site Photos

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 - 2.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 3,874 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 8 %
Agricultural Land Use 9 %
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 15/20 (Suboptimal)
Epifaunal Substrate 14/20 (Suboptimal)
Velocity/Depth Diversity 13/20 (Suboptimal)
Pool Quality
Pool Extent = 65 meters 		14/20 (Suboptimal)
Riffle Quality
Riffle Extent = 15 meters 		8/20 (Marginal)
Shading 90 %
Embeddedness 35 %


Stream Water Quality:
Water temperature 17.5 ° C
Dissolved oxygen (DO) 9.1 mg/L
pH (lab) 7.19
Conductivity 310 µmho/cm
Alkalinity
(acid neutralizing capacity) 		602.7 µeq/L
Dissolved organic carbon (DOC) 1.9 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 11 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 260
Fantail Darter 72
Bluegill 46
Pumpkinseed 20
White Sucker 17
Potomac Sculpin 12
Common Shiner 7
Green Sunfish 5
Yellow Bullhead 4
Creek Chub 3
Bluntnose Minnow 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog
Northern Two-Lined Salamander
Northern Watersnake

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Stiltgrass
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Parametriocnemus Non-Biting Midges 38
Amphinemura Spring Stonefly 13
Paracapnia Small Winter Stonefly 11
Prosimulium Black Fly 8
Orthocladius Non-Biting Midges 5
Nemouridae Nemourid Stonefly 5
Oemopteryx Stonefly 5
Nigronia Megaloptera (Dark Fishfly) 3
Micropsectra Non-Biting Midges 3
Naididae Aquatic Worm 2
Rhyacophila Free-Living Caddisfly 2
Tanypodinae Non-Biting Midges 2
Lymnaeidae Pond Snail 1
Pycnopsyche Great Autumn Brown Sedge Caddisfly 1
Caenis Mayfly 1
Ceratopogonidae Biting Midge 1
Neophylax Caddisfly 1
Heterotrissocladius European Non-Biting Midge 1
Stenonema Flatheaded Mayfly 1
Sympotthastia Non-Biting Midges 1
Orthocladiinae Midge 1
Eukiefferiella 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.