MBSS Site Summary for: EVIT-103-R-2009

Site Photos

Field photo showing stream conditions at site EVIT-103-R-2009-1 (Opens in a new window) Field photo showing stream conditions at site EVIT-103-R-2009-2 (Opens in a new window)

Located on UT Evitts Creek in the Evitts Creek watershed, 8-digit code: 02141002.
This stream was visited in the spring on 3/23/2009 and again in the summer on 6/2/2009.

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 - 1.5 / 5.0
Benthic IBI Fair - 3.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 499 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 5.6 %
Agricultural Land Use 6.3 %
Forested Land Use 88.2 %


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

Physical Stream Habitat
Instream Habitat 6/20 (Marginal)
Epifaunal Substrate 8/20 (Marginal)
Velocity/Depth Diversity 9/20 (Marginal)
Pool Quality
Pool Extent = 53 meters 		7/20 (Marginal)
Riffle Quality
Riffle Extent = 32 meters 		7/20 (Marginal)
Shading 80 %
Embeddedness 0 %


Stream Water Quality:
Water temperature 15.1 ° C
Dissolved oxygen (DO) 8.6 mg/L
pH (lab) 7.96
Conductivity 465 µmho/cm
Alkalinity
(acid neutralizing capacity) 		2242 µeq/L
Dissolved organic carbon (DOC) 1.8188 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 2 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 136
Creek Chub 43
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
Garlic Mustard
Japanese Honeysuckle
Japanese Stiltgrass
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Diplectrona Net-Spinning Caddisfly 15
Gammarus Amphipod 13
Sweltsa Stonefly 10
Thienemannimyia Group Non-Biting Midges 8
Eurylophella Mayfly 8
Sympotthastia Non-Biting Midges 7
Parametriocnemus Non-Biting Midges 6
Optioservus Riffle Beetle 5
Psephenus Water Penny 5
Heleniella European Non-Biting Midge 5
Orthocladius Non-Biting Midges 4
Isotomurus Elongate-Bodied Springtail 3
Heptageniidae Flathead Mayfly 3
Pseudolimnophila Crane Fly 3
Ceratopogon Biting Midge 2
Chloroperlidae Green Stonefly 2
Stylogomphus Clubtail Dragonfly 2
Tanypodinae Non-Biting Midges 2
Dubiraphia Riffle Beetle 1
Polypedilum Non-Biting Midges 1
Stempellinella Non-Biting Midges 1
Lumbriculidae Worm 1
Ephemerellidae Spiny Crawler Mayfly 1
Isoperla Stripetail Stonefly 1
Heterotrissocladius European Non-Biting Midge 1
Chimarra Fingernet Caddisfly 1
Epeorus Mayfly 1
Orthocladiinae Midge 1
Diamesa Bloodworm 1
Neophylax Caddisfly 1
Bezzia Biting Midge 1
Tipula Crane Fly 1
Calopteryx Damselfly 1
Chrysops Deerfly 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.