MBSS Site Summary for: GWPY-103-N-2004


Located on TURKEY RUN in the watershed, 8-digit code: .
This stream was visited in the spring on 3/9/2004 and again in the summer on 6/7/2004.

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 N R
Benthic IBI N R

Land Use

Land use can provide important information for determining stream health.
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Catchment area 666 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 19 %
Agricultural Land Use 14 %
Forested Land Use 66 %


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

Physical Stream Habitat
Instream Habitat 13/20 (Suboptimal)
Epifaunal Substrate 10/20 (Marginal)
Velocity/Depth Diversity 9/20 (Marginal)
Pool Quality
Pool Extent = 62 meters 		8/20 (Marginal)
Riffle Quality
Riffle Extent = 30 meters 		11/20 (Suboptimal)
Shading 90 %
Embeddedness 35 %


Stream Water Quality:
Water temperature 16 ° C
Dissolved oxygen (DO) 8.2 mg/L
pH (lab) 8.36
Alkalinity
(acid neutralizing capacity) 		1139 µeq/L
Dissolved organic carbon (DOC) 1.2 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 6 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 182
American Eel 12
Longnose Dace 9
Creek Chub 5
Central Stoneroller 1
Rosyside Dace 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Stiltgrass
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Diamesa Bloodworm 24
Orthocladius Non-Biting Midges 24
Hydrobaenus Midge 20
Diplocladius Non-Biting Midges 12
Micropsectra Non-Biting Midges 3
Tvetenia Non-Biting Midges 3
Parametriocnemus Non-Biting Midges 2
Paraphaenocladius Non-Biting Midges 2
Ameletus Combmouthed Minnow Mayfly 2
Sweltsa Stonefly 2
Hydropsychidae Common Netspinner Caddisfly 1
Tipula Crane Fly 1
Gordiidae Horsehair Worm 1
Caecidotea Isopod 1
Chironomidae Non-Biting Midge 1
Brillia Non-Biting Midges 1
Neophylax Caddisfly 1
Polypedilum Non-Biting Midges 1
Amphinemura Spring Stonefly 1
Prostoia Spring 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.