MBSS Site Summary for: TOWN-108-R-2002

Site Photos

Field photo showing stream conditions at site TOWN-108-R-2002-1 (Opens in a new window) Field photo showing stream conditions at site TOWN-108-R-2002-2 (Opens in a new window) Field photo showing stream conditions at site TOWN-108-R-2002-3 (Opens in a new window) Field photo showing stream conditions at site TOWN-108-R-2002-4 (Opens in a new window)

Located on BEAR HOLLOW in the Town Creek watershed, 8-digit code: 02140512.
This stream was visited in the spring on 3/26/2002 and again in the summer on 7/10/2002.

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 - 1.3 / 5.0
Benthic IBI Fair - 3.5 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 526 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 4 %
Agricultural Land Use 16 %
Forested Land Use 77 %


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

Physical Stream Habitat
Instream Habitat 9/20 (Marginal)
Epifaunal Substrate 15/20 (Suboptimal)
Velocity/Depth Diversity 5/20 (Poor)
Pool Quality
Pool Extent = 31 meters 		4/20 (Poor)
Riffle Quality
Riffle Extent = 44 meters 		6/20 (Marginal)
Shading 96 %
Embeddedness 20 %


Stream Water Quality:
Water temperature 21.8 ° C
Dissolved oxygen (DO) 7.5 mg/L
pH (lab) 7.37
Conductivity 170 µmho/cm
Alkalinity
(acid neutralizing capacity) 		641.7 µeq/L
Dissolved organic carbon (DOC) 2.6 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 2 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 53
Creek Chub 5
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
No amphibians and reptiles noted.

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Stiltgrass
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Amphinemura Spring Stonefly 23
Diphetor Mayfly 22
Baetidae Small Minnow Mayfly 11
Paraleptophlebia Blue Quill Mayfly 8
Diplectrona Net-Spinning Caddisfly 6
Tvetenia Non-Biting Midges 4
Leptophlebiidae Pronggilled Mayfly 4
Isotomurus Elongate-Bodied Springtail 4
Conchapelopia Non-Biting Midges 3
Ephemerella Sulphur Mayfly 3
Chloroperlidae Green Stonefly 2
Capniidae Small Winter Stonefly 2
Platysmittia 2
Leuctra  Rolled-Winged Stonefly 1
Tipulidae Cranefly 1
Chimarra Fingernet Caddisfly 1
Epeorus Mayfly 1
Eurylophella Mayfly 1
Corynoneura Non-Biting Midges 1
Micropsectra Non-Biting Midges 1
Microtendipes Non-Biting Midges 1
Tanytarsini Non-Biting Midges 1
Tanytarsus Non-Biting Midges 1
Acerpenna Tiny Blue-Winged Olive Mayflies 1
Psephenus Water Penny 1
Alloperla Stonefly 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.