MBSS Site Summary for: LTON-205-R-2008

Site Photos

Field photo showing stream conditions at site LTON-205-R-2008-1 (Opens in a new window) Field photo showing stream conditions at site LTON-205-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 Poor - 2.8 / 5.0

Land Use

Land use can provide important information for determining stream health.
(Hint: Screen readers will announce definitions; mouse users can hover over dotted text.)
Catchment area 2,436 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 4.2 %
Agricultural Land Use 10.3 %
Forested Land Use 85 %


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 = 67 meters 		10/20 (Marginal)
Riffle Quality
Riffle Extent = 17 meters 		8/20 (Marginal)
Shading 50 %
Embeddedness 30 %


Stream Water Quality:
Water temperature 20.2 ° C
Dissolved oxygen (DO) 6.5 mg/L
pH (lab) 7.04
Conductivity 148 µmho/cm
Alkalinity
(acid neutralizing capacity) 		297.7 µeq/L
Dissolved organic carbon (DOC) 1.7785 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 6 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 59
Creek Chub 12
Fantail Darter 10
Bluegill 2
Potomac Sculpin 1
Sunfish (Hybrid) 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Two-Lined Salamander

Crayfish:
Orconectes virilis

Exotic Plants:
Japanese Honeysuckle
Japanese Stiltgrass
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Parametriocnemus Non-Biting Midges 31
Ameletus Combmouthed Minnow Mayfly 15
Prosimulium Black Fly 12
Rhyacophila Free-Living Caddisfly 9
Prostoia Spring Stonefly 7
Orthocladius Non-Biting Midges 6
Stenelmis Beetle 3
Perlodidae Perlodid Stonefly 3
Cheumatopsyche Net-Spinning Caddisfly 3
Diamesinae Non-Biting Midges 2
Dicrotendipes Non-Biting Midges 2
Tipula Crane Fly 2
Diamesa Bloodworm 2
Neophylax Caddisfly 2
Antocha Crane Fly 1
Taenionema 1
Clinocera Aquatic Dance Fly 1
Spirosperma Aquatic Oligochaete Worm 1
Helichus Beetle 1
Stenonema Flatheaded Mayfly 1
Dolichopodidae Long-Legged Fly 1
Stilocladius Midge 1
Chironomini Non-Biting Midge 1
Optioservus Riffle Beetle 1
Capniidae Small Winter Stonefly 1
Isoperla Stripetail Stonefly 1
Paratanytarsus Non-Biting Midges 1
Tvetenia 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.