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

Site Photos

Field photo showing stream conditions at site LANG-205-R-2008-1 (Opens in a new window) Field photo showing stream conditions at site LANG-205-R-2008-2 (Opens in a new window)

Located on 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 Fair - 3.7 / 5.0
Benthic IBI Fair - 3.0 / 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 2,979 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 1.1 %
Agricultural Land Use 87.3 %
Forested Land Use 10.3 %


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 11/20 (Suboptimal)
Pool Quality
Pool Extent = 66 meters 		11/20 (Suboptimal)
Riffle Quality
Riffle Extent = 26 meters 		12/20 (Suboptimal)
Shading 80 %
Embeddedness 60 %
The embeddedness, a measure of silt on the stream bottom, was 60%. This is relatively high, and may exclude some biota.


Stream Water Quality:
Water temperature 28.1 ° C
Dissolved oxygen (DO) 7.6 mg/L
pH (lab) 7.14
Conductivity 136 µmho/cm
Alkalinity
(acid neutralizing capacity) 		526.1 µeq/L
Dissolved organic carbon (DOC) 2.9995 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 14 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Bluegill 697
Eastern Mudminnow 93
American Eel 84
Brown Bullhead 65
Black Crappie 20
Golden Shiner 20
Largemouth Bass 16
Pumpkinseed 13
Creek Chubsucker 12
Green Sunfish 6
Eastern Mosquitofish 3
Tessellated Darter 3
Channel Catfish 2
Yellow Perch 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Eastern Painted Turtle
Eastern Snapping Turtle
Northern Green Frog
Northern Two-Lined Salamander
Northern Watersnake
Pickerel Frog
Stinkpot

Crayfish:
Cambarus diogenes
Orconectes limosus

Exotic Plants:
Japanese Honeysuckle
Japanese Stiltgrass
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Cheumatopsyche Net-Spinning Caddisfly 23
Glyptotendipes 18
Caecidotea Isopod 13
Orthocladius Non-Biting Midges 10
Musculium Fingernail Clam 8
Caenis Mayfly 4
Polypedilum Non-Biting Midges 3
Thienemannimyia Group Non-Biting Midges 3
Rheotanytarsus Non-Biting Midges 2
Orthocladiinae Midge 2
Dicrotendipes Non-Biting Midges 2
Diplocladius Non-Biting Midges 2
Coenagrionidae Narrowwinged Damselfly 1
Enallagma Narrow-Winged Damselfly 1
Hydropsyche Net-Spinning Caddisfly 1
Ablabesmyia Non-Biting Midge 1
Chaetocladius Non-Biting Midges 1
Oxyethira Microcaddisfly 1
Hydrobaenus Midge 1
Girardia Freshwater Flatworm 1
Stenochironomus European Non-Biting Midge 1
Paratanytarsus Non-Biting Midges 1
Hemerodromia Tiny Fly 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.