MBSS Site Summary for: LANG-101-A-2012

Site Photos

Field photo showing stream conditions at site LANG-101-A-2012-50mDownstream (Opens in a new window) Field photo showing stream conditions at site LANG-101-A-2012-50mUpstream (Opens in a new window)

Located on FANELS BRANCH UT in the Langford Creek watershed, 8-digit code: 02130506.
This stream was visited in the spring on 3/15/2012 and again in the summer on 6/19/2012.

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 - 4.0 / 5.0
Benthic IBI Good - 4.7 / 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 1,818 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 7.7 %
Agricultural Land Use 83.3 %
Forested Land Use 8 %


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 3/20 (Poor)
Velocity/Depth Diversity 9/20 (Marginal)
Pool Quality
Pool Extent = 75 meters 		16/20 (Optimal)
Riffle Quality
Riffle Extent = 4 meters 		6/20 (Marginal)
Shading 30 %
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:
pH (lab) 6.93
Alkalinity
(acid neutralizing capacity) 		403.3 µeq/L
Dissolved organic carbon (DOC) 1.6781 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 12 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Tessellated Darter 50
American Eel 47
Eastern Mudminnow 18
Eastern Mosquitofish 12
Largemouth Bass 9
Green Sunfish 7
Banded Killifish 5
Brown Bullhead 4
Least Brook Lamprey 4
Bluegill 2
Creek Chubsucker 1
Fallfish 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Cope's Gray Treefrog
Northern Green Frog

Crayfish:
Cambarus diogenes
Orconectes limosus

Exotic Plants:
Autumn Olive
Daylily
Hydrilla Verticillata
Japanese Barberry
Japanese Honeysuckle
Japanese Stiltgrass
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Tanytarsus Non-Biting Midges 24
Paratanytarsus Non-Biting Midges 22
Acerpenna Tiny Blue-Winged Olive Mayflies 12
Polypedilum Non-Biting Midges 10
Simulium Black Fly 7
Calopteryx Damselfly 5
Stempellinella Non-Biting Midges 5
Maccaffertium March Brown And Cahill Mayfly 4
Cheumatopsyche Net-Spinning Caddisfly 4
Orthocladius Non-Biting Midges 3
Enallagma Narrow-Winged Damselfly 2
Ischnura 2
Oxyethira Microcaddisfly 2
Thienemannimyia Group Non-Biting Midges 2
Dubiraphia Riffle Beetle 1
Tanypodinae Non-Biting Midges 1
Hemerodromia Tiny Fly 1
Orthocladiinae Midge 1
Argia Narrow-Winged Damselfly 1
Hydropsyche Net-Spinning Caddisfly 1
Chironomini Non-Biting Midge 1
Cricotopus Non-Biting Midges 1
Gammarus Amphipod 1
SIMULIIDAE Black Fly 1
Potthastia Non-Biting Midges 1
Rheocricotopus 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.