MBSS Site Summary for: LANG-108-R-2008

Site Photos

Field photo showing stream conditions at site LANG-108-R-2008-1 (Opens in a new window) Field photo showing stream conditions at site LANG-108-R-2008-2 (Opens in a new window)

Located on UT EAST FORK LANGFORD CREEK in the Langford Creek watershed, 8-digit code: 02130506.
This stream was visited in the spring on 3/19/2008 and again in the summer on 7/1/2008.

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 Good - 4.7 / 5.0
Benthic IBI Fair - 3.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 1,790 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 %
Agricultural Land Use 89.4 %
Forested Land Use 7.6 %


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

Physical Stream Habitat
Instream Habitat 11/20 (Suboptimal)
Epifaunal Substrate 9/20 (Marginal)
Velocity/Depth Diversity 8/20 (Marginal)
Pool Quality
Pool Extent = 75 meters 		11/20 (Suboptimal)
Riffle Quality
Riffle Extent = 4 meters 		11/20 (Suboptimal)
Shading 55 %
Embeddedness 100 %
The embeddedness, a measure of silt on the stream bottom, was 100%. This is very high, and may adversely affect biotic communities.


Stream Water Quality:
Water temperature 19.5 ° C
Dissolved oxygen (DO) 7.1 mg/L
pH (lab) 6.89
Conductivity 163 µmho/cm
Alkalinity
(acid neutralizing capacity) 		384.3 µeq/L
Dissolved organic carbon (DOC) 1.1212 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
Pumpkinseed 102
Bluegill 82
Tessellated Darter 48
Eastern Mudminnow 34
Green Sunfish 31
American Eel 29
Least Brook Lamprey 28
Largemouth Bass 26
Fallfish 18
Creek Chubsucker 11
Eastern Mosquitofish 7
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Common Five-Lined Skink
Northern Green Frog
Northern Two-Lined Salamander
Pickerel Frog

Crayfish:
Cambarus diogenes
Orconectes limosus

Exotic Plants:
Japanese Stiltgrass
Multiflora Rose
Wineberry
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Polycentropus Tube Maker Caddisfly 22
Ceratopogonidae Biting Midge 15
Argia Narrow-Winged Damselfly 15
Caecidotea Isopod 9
Clinotanypus Non-Biting Midge 7
Calopteryx Damselfly 5
Ablabesmyia Non-Biting Midge 4
Orthocladius Non-Biting Midges 4
Paratanytarsus Non-Biting Midges 4
Dubiraphia Riffle Beetle 4
Tanytarsus Non-Biting Midges 3
Micropsectra Non-Biting Midges 3
Stempellinella Non-Biting Midges 2
Phaenopsectra Non-Biting Midges 2
Sialis Alderfly 2
Triaenodes Long-Horned Caddisfly 2
Coenagrionidae Narrowwinged Damselfly 2
Enallagma Narrow-Winged Damselfly 1
Ceratopogon Biting Midge 1
Rheotanytarsus Non-Biting Midges 1
Chironomini Non-Biting Midge 1
Cricotopus 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.