MBSS Site Summary for: TOWN-201-R-2002

Site Photos

Field photo showing stream conditions at site TOWN-201-R-2002-1 (Opens in a new window) Field photo showing stream conditions at site TOWN-201-R-2002-2 (Opens in a new window) Field photo showing stream conditions at site TOWN-201-R-2002-3 (Opens in a new window) Field photo showing stream conditions at site TOWN-201-R-2002-4 (Opens in a new window)

Located on SAW PIT RUN 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 8/13/2002.

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 - 2.7 / 5.0
Benthic IBI Poor - 2.5 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 2,813 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 2 %
Agricultural Land Use 11 %
Forested Land Use 86 %


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

Physical Stream Habitat
Instream Habitat 16/20 (Optimal)
Epifaunal Substrate 11/20 (Suboptimal)
Velocity/Depth Diversity 10/20 (Marginal)
Pool Quality
Pool Extent = 75 meters 		13/20 (Suboptimal)
Riffle Quality
Riffle Extent = 0 meters 		0/20 (Poor)
Shading 30 %
Embeddedness 50 %


Stream Water Quality:
Water temperature 21.8 ° C
Dissolved oxygen (DO) 5.5 mg/L
pH (lab) 7.17
Conductivity 210 µmho/cm
Alkalinity
(acid neutralizing capacity) 		429.6 µeq/L
Dissolved organic carbon (DOC) 2.4 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 10 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Creek Chubsucker 58
Bluegill 33
Creek Chub 24
Green Sunfish 21
Bluntnose Minnow 15
Chain Pickerel 7
Redbreast Sunfish 6
White Sucker 6
Rock Bass 2
Pumpkinseed 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
No amphibians and reptiles noted.

Crayfish:
No crayfish noted.

Exotic Plants:
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Siphlonurus Gray Drake Mayfly 40
Orthocladius Non-Biting Midges 27
Hydrobaenus Midge 7
Limnephilus 7
Crangonyx Amphipod 4
Menetus Air Breathing Freshwater Snail 3
Pseudosuccinea Air Breathing Freshwater Snail 3
Orthocladiinae Midge 3
Coenagrionidae Narrowwinged Damselfly 3
Corynoneura Non-Biting Midges 3
Lumbriculidae Worm 3
Physa Air-Breathing Freshwater Snail 2
Prodiamesa 1
Neophylax Caddisfly 1
Ormosia Cranefly 1
Peltodytes Crawling Water Beetle 1
Odonata Dragonfly, Damselfly 1
Tanypodinae Non-Biting Midges 1
Tanytarsini Non-Biting Midges 1
Thienemannimyia group Non-Biting Midges 1
Paracapnia Small Winter Stonefly 1
Dineutus Whirlygig Beetle 1
Caecidotea Isopod 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.