MBSS Site Summary for: BODK-101-R-2015

Site Photos

Field photo showing stream conditions at site BODK-101-R-2015_Midpoint-looking-downstream (Opens in a new window) Field photo showing stream conditions at site BODK-101-R-2015_Midpoint-looking-upstream (Opens in a new window)

Located on MAIN CREEK UT in the Bodkin Creek watershed, 8-digit code: 02130902.
This stream was visited in the spring on 3/16/2015 and again in the summer on 7/28/2015.

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 - 2.0 / 5.0
Benthic IBI Poor - 2.7 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 796 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 46.3 %
Agricultural Land Use 2 %
Forested Land Use 49.2 %


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

Physical Stream Habitat
Instream Habitat 4/20 (Poor)
Epifaunal Substrate 3/20 (Poor)
Velocity/Depth Diversity 4/20 (Poor)
Pool Quality
Pool Extent = 74 meters 		2/20 (Poor)
Riffle Quality
Riffle Extent = 22 meters 		3/20 (Poor)
Shading 35 %
Embeddedness 100 %
The embeddedness, a measure of silt on the stream bottom, was 100%. This is very high, and may adversely affect biotic communities.
Several measures of instream habitat were considered 'Poor' at this location.


Stream Water Quality:
pH (lab) 6.21
Alkalinity
(acid neutralizing capacity) 		204.4 µeq/L
Dissolved organic carbon (DOC) 4.4875 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 4 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Eastern Mudminnow 6
Green Sunfish 5
American Eel 4
Bluegill 2
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Northern Green Frog
Pickerel Frog
Southern Leopard Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Stiltgrass
Mile-A-Minute
Multiflora Rose
Wineberry
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Stegopterna Black Fly 27
Thienemannimyia Group Non-Biting Midges 24
Pisidiidae Pill Clam 8
Alotanypus Non-Biting Midges 7
Tubificidae Aquatic Worm 6
Procladius Non-Biting Midge 6
Parametriocnemus Non-Biting Midges 5
Ironoquia Northern Caddisfly 5
Isotomidae Springtail 4
Zavrelimyia Non-Biting Midges 3
Prostoma Freshwater Nemertean (Ribbon Worm) 3
Ptilostomis Giant Casemaker Caddisfly 2
Coenagrionidae Narrowwinged Damselfly 2
Tipula Crane Fly 2
Stenochironomus European Non-Biting Midge 2
Limnephilidae Northern Casemaker Caddisfly 2
Physa Air-Breathing Freshwater Snail 2
Polypedilum Non-Biting Midges 1
Musculium Fingernail Clam 1
Cheumatopsyche Net-Spinning Caddisfly 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.