MBSS Site Summary for: NANT-122-R-2002

Site Photos

Located on REWASTICO CR in the Nanticoke River watershed, 8-digit code: 02130305.
This stream was visited in the spring on 3/13/2002 and again in the summer on 6/17/2002.

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 Fair - 3.3 / 5.0
Benthic IBI Good - 4.1 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area No data available 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 No data available
Agricultural Land Use No data available
Forested Land Use No data available


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

Physical Stream Habitat
Instream Habitat 18/20 (Optimal)
Epifaunal Substrate 16/20 (Optimal)
Velocity/Depth Diversity 15/20 (Suboptimal)
Pool Quality
Pool Extent = 35 meters 		17/20 (Optimal)
Riffle Quality
Riffle Extent = 45 meters 		16/20 (Optimal)
Shading 90 %
Embeddedness 25 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 23.6 ° C
Dissolved oxygen (DO) 8.8 mg/L
pH (lab) 6.9
Conductivity 160 µmho/cm
Alkalinity
(acid neutralizing capacity) 		354.9 µeq/L
Dissolved organic carbon (DOC) 2.5 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 6 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
American Eel 65
Bluegill 23
Least Brook Lamprey 21
Pirate Perch 11
Eastern Mosquitofish 4
Eastern Mudminnow 3
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Northern Green Frog
Northern Watersnake
Southern Leopard Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Japanese Stiltgrass
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Parametriocnemus Non-Biting Midges 17
Rheocricotopus Non-Biting Midges 13
Microcylloepus Riffle Beetle 8
Gammarus Amphipod 8
Stenonema Flatheaded Mayfly 8
Cheumatopsyche Net-Spinning Caddisfly 6
Heptageniidae Flathead Mayfly 6
Polypedilum Non-Biting Midges 5
Simulium Black Fly 4
Labrundinia Non-Biting Midges 4
Cricotopus Non-Biting Midges 3
Chimarra Fingernet Caddisfly 3
Rheosmittia Non-Biting Midges 3
Pisidiidae Pill Clam 2
Ancyronyx Spider Riffle Beetle 2
Lype Net Tube Caddisfly 2
Corynoneura Non-Biting Midges 2
Hydropsyche Net-Spinning Caddisfly 1
Conchapelopia Non-Biting Midges 1
Pycnopsyche Great Autumn Brown Sedge Caddisfly 1
Nigronia Megaloptera (Dark Fishfly) 1
Calopteryx Damselfly 1
Synurella Amphipod 1
Naididae Aquatic Worm 1
Culicoides 1
Sialis Alderfly 1
Hemerodromia Tiny Fly 1
Potthastia Non-Biting Midges 1
Macronychus Riffle Beetle 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.