MBSS Site Summary for: QA-N-033-317-95


Located on RED LION BR in the Upper Chester River watershed, 8-digit code: 02130510.
This stream was visited in the spring on 4/4/1995 and again in the summer on 7/13/1995.

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 - 4.3 / 5.0
Benthic IBI Good - 4.7 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 10,217 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 69.1 %
Forested Land Use 28.5 %


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

Physical Stream Habitat
Instream Habitat 15/20 (Suboptimal)
Epifaunal Substrate 15/20 (Suboptimal)
Velocity/Depth Diversity 16/20 (Optimal)
Pool Quality
Pool Extent = meters 		14/20 (Suboptimal)
Riffle Quality 16/20 (Optimal)
Shading 80 %
Embeddedness 0 %


Stream Water Quality:
Water temperature 21.4 ° C
Dissolved oxygen (DO) 6.7 mg/L
pH (lab) 7.03
Conductivity 159 µmho/cm
Alkalinity
(acid neutralizing capacity) 		361.7 µeq/L
Dissolved organic carbon (DOC) 4 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 16 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Tessellated Darter 116
Eastern Mudminnow 61
Fallfish 56
American Eel 36
Redbreast Sunfish 13
Pirate Perch 12
Pumpkinseed 7
Bluegill 6
Chain Pickerel 6
Tadpole Madtom 4
Creek Chubsucker 3
Yellow Perch 3
Redfin Pickerel 2
Black Crappie 1
Least Brook Lamprey 1
Sea Lamprey 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Northern Green 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 15
Hydropsyche Net-Spinning Caddisfly 12
Stenelmis Beetle 10
Neophylax Caddisfly 7
Stenonema Flatheaded Mayfly 6
Serratella Mayfly 5
Simulium Black Fly 4
Acerpenna Tiny Blue-Winged Olive Mayflies 4
Oulimnius Riffle Beetle 3
Gammarus Amphipod 3
Isoperla Stripetail Stonefly 2
Oecetis Long-Horned Caddisfly 2
Tanytarsus Non-Biting Midges 2
Dubiraphia Riffle Beetle 2
Optioservus Riffle Beetle 2
Ablabesmyia Non-Biting Midge 2
Conchapelopia Non-Biting Midges 1
Orthocladius Non-Biting Midges 1
Parametriocnemus Non-Biting Midges 1
Polypedilum Non-Biting Midges 1
Argia Narrow-Winged Damselfly 1
Eurylophella Mayfly 1
Calopteryx Damselfly 1
Goniobasis 1
Valvata 1
Physa Air-Breathing Freshwater Snail 1
Prostoia Spring Stonefly 1
Corixidae Water Boatman 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.