MBSS Site Summary for: GWPY-201-N-2004


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

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 1,362 acres Cows standing in a stream at a site with high agricultural land use. Cows survey the sampling procedure at this extreme example of a highly agriculturalized site.
Urban Land Use 10 %
Agricultural Land Use 56 %
Forested Land Use 32 %


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 15/20 (Suboptimal)
Velocity/Depth Diversity 15/20 (Suboptimal)
Pool Quality
Pool Extent = 61 meters 		17/20 (Optimal)
Riffle Quality
Riffle Extent = 53 meters 		16/20 (Optimal)
Shading 85 %
Embeddedness 35 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 18.5 ° C
Dissolved oxygen (DO) 8.5 mg/L
pH (lab) 7.49
Alkalinity
(acid neutralizing capacity) 		539.9 µeq/L
Dissolved organic carbon (DOC) 1.8 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 11 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 53
Longnose Dace 14
Rosyside Dace 12
Creek Chub 7
American Eel 5
White Sucker 5
Largemouth Bass 4
Redbreast Sunfish 3
Central Stoneroller 2
Green Sunfish 2
Common Shiner 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
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Orthocladius Non-Biting Midges 51
Diamesa Bloodworm 32
Diamesinae Non-Biting Midges 7
Sympotthastia Non-Biting Midges 4
Chimarra Fingernet Caddisfly 3
Hydrobaenus Midge 2
Orthocladiinae Midge 2
Hydropsyche Net-Spinning Caddisfly 2
Simulium Black Fly 2
Stegopterna Black Fly 1
Tipula Crane Fly 1
Crangonyx Amphipod 1
Chelifera Aquatic Dance Fly 1
Naididae Aquatic Worm 1
Prosimulium Black Fly 1
Brillia Non-Biting Midges 1
Cryptochironomus Non-Biting Midges 1
Eukiefferiella Non-Biting Midges 1
Cheumatopsyche Net-Spinning Caddisfly 1
Acroneuria Golden Stoneflies 1
Gerridae Water Strider 1
Lumbriculidae Worm 1
Polypedilum Non-Biting Midges 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.