MBSS Site Summary for: BODK-101-R-2001

Site Photos

Field photo showing stream conditions at site BODK-101-R-2001-1 (Opens in a new window) Field photo showing stream conditions at site BODK-101-R-2001-2 (Opens in a new window)

Located on MAIN CR UT1 in the Bodkin Creek watershed, 8-digit code: 02130902.
This stream was visited in the spring on 3/1/2001 and again in the summer on 6/5/2001.

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 - 1.7 / 5.0
Benthic IBI Poor - 1.9 / 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 21 %
Agricultural Land Use 14 %
Forested Land Use 65 %


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 5/20 (Poor)
Velocity/Depth Diversity 5/20 (Poor)
Pool Quality
Pool Extent = 60 meters 		9/20 (Marginal)
Riffle Quality
Riffle Extent = 16 meters 		6/20 (Marginal)
Shading 90 %
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 19.1 ° C
Dissolved oxygen (DO) 5.2 mg/L
pH (lab) 5.3
Conductivity 350 µmho/cm
Alkalinity
(acid neutralizing capacity) 		101.9 µeq/L
Dissolved organic carbon (DOC) 2.5 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 1 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Eastern Mudminnow 69
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Northern Green Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Stiltgrass
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Zavrelimyia Non-Biting Midges 35
Clinotanypus Non-Biting Midge 19
Culicoides 12
Caecidotea Isopod 10
Chironomus Non-Biting Midges 10
Sialis Alderfly 8
Alotanypus Non-Biting Midges 7
Bittacomorpha 3
Enchytraeidae Aquatic Worm 3
Tipulidae Cranefly 1
Musculium Fingernail Clam 1
Ptilostomis Giant Casemaker Caddisfly 1
Acilius 1
Synurella Amphipod 1
Limnodrilus Worm 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.