MBSS Site Summary for: GWPY-205-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.
(Hint: Screen readers will announce definitions; mouse users can hover over dotted text.)
Catchment area 1,563 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 9 %
Agricultural Land Use 51 %
Forested Land Use 38 %


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 10/20 (Marginal)
Velocity/Depth Diversity 16/20 (Optimal)
Pool Quality
Pool Extent = 59 meters 		16/20 (Optimal)
Riffle Quality
Riffle Extent = 40 meters 		16/20 (Optimal)
Shading 90 %
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) 7.35
Alkalinity
(acid neutralizing capacity) 		523.3 µeq/L
Dissolved organic carbon (DOC) 1.5 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 14 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Green Sunfish 17
Central Stoneroller 15
Longnose Dace 14
Rosyside Dace 10
Blacknose Dace 9
Creek Chub 7
Redbreast Sunfish 6
Common Shiner 5
American Eel 4
Lepomis Hybrid 2
White Sucker 2
Bluegill 1
Fantail Darter 1
Largemouth Bass 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 35
Orthocladius Non-Biting Midges 18
Sympotthastia Non-Biting Midges 13
Diamesinae Non-Biting Midges 7
Diplocladius Non-Biting Midges 6
Chimarra Fingernet Caddisfly 3
Hydrobaenus Midge 2
Cheumatopsyche Net-Spinning Caddisfly 2
Hydropsyche Net-Spinning Caddisfly 2
Polypedilum Non-Biting Midges 2
Lumbriculidae Worm 2
Crangonyx Amphipod 1
Rheosmittia Non-Biting Midges 1
Thienemanniella Non-Biting Midges 1
Limnephilidae Northern Casemaker Caddisfly 1
Capniidae Small Winter Stonefly 1
Psephenus Water Penny 1
Limnophyes Non-Biting Midge 1
Corynoneura Non-Biting Midges 1
Stenonema Flatheaded Mayfly 1
Acroneuria Golden Stoneflies 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.