MBSS Site Summary for: QA-N-033-311-95


Located on RED LION BR in the Upper Chester River watershed, 8-digit code: 02130510.
This stream was visited in the spring on 5/6/1995 and again in the summer on 7/17/1995.

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 Good - 4.7 / 5.0
Benthic IBI Fair - 3.9 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 10,090 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 1.8 %
Agricultural Land Use 69 %
Forested Land Use 28.6 %


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 = meters 		15/20 (Suboptimal)
Riffle Quality 16/20 (Optimal)
Shading 65 %
Embeddedness 40 %


Stream Water Quality:
Water temperature 23.8 ° C
Dissolved oxygen (DO) 7.1 mg/L
pH (lab) 6.92
Conductivity 170 µmho/cm
Alkalinity
(acid neutralizing capacity) 		398.7 µeq/L
Dissolved organic carbon (DOC) 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 19 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Tessellated Darter 75
Fallfish 54
American Eel 43
Pumpkinseed 33
Bluegill 20
Pirate Perch 19
Tadpole Madtom 13
Creek Chubsucker 12
Redbreast Sunfish 12
Swallowtail Shiner 9
Chain Pickerel 7
Eastern Mudminnow 7
Least Brook Lamprey 4
Margined Madtom 4
Yellow Perch 3
Brown Bullhead 1
Golden Shiner 1
Largemouth Bass 1
Redfin Pickerel 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Pickerel Frog

Crayfish:
No crayfish noted.

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Cheumatopsyche Net-Spinning Caddisfly 37
Hydropsyche Net-Spinning Caddisfly 15
Isoperla Stripetail Stonefly 13
Stenelmis Beetle 5
Serratella Mayfly 4
Gammarus Amphipod 3
Polypedilum Non-Biting Midges 3
Rheotanytarsus Non-Biting Midges 2
Tanytarsus Non-Biting Midges 2
Acerpenna Tiny Blue-Winged Olive Mayflies 2
Optioservus Riffle Beetle 2
Oulimnius Riffle Beetle 2
Simulium Black Fly 2
Stenonema Flatheaded Mayfly 2
Conchapelopia Non-Biting Midges 2
Cryptochironomus Non-Biting Midges 1
Orthocladius Non-Biting Midges 1
Hyalella Amphipod 1
Hemerodromia Tiny Fly 1
Limnephilidae Northern Casemaker Caddisfly 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.