MBSS Site Summary for: QA-N-033-318-95


Located on RED LION BR in the Upper Chester River watershed, 8-digit code: 02130510.
This stream was visited in the spring on 4/5/1995 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 - 4.0 / 5.0
Benthic IBI Good - 4.7 / 5.0

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 10,160 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 7/20 (Marginal)
Epifaunal Substrate 3/20 (Poor)
Velocity/Depth Diversity 6/20 (Marginal)
Pool Quality
Pool Extent = meters 		9/20 (Marginal)
Riffle Quality 4/20 (Poor)
Shading 85 %
Embeddedness 100 %
The embeddedness, a measure of silt on the stream bottom, was 100%. This is very high, and may adversely affect biotic communities.


Stream Water Quality:
Water temperature 22.8 ° C
Dissolved oxygen (DO) 6.4 mg/L
pH (lab) 7.03
Conductivity 169 µmho/cm
Alkalinity
(acid neutralizing capacity) 		389.1 µeq/L
Dissolved organic carbon (DOC) 3 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 23
Bluegill 19
Pumpkinseed 17
American Eel 13
Eastern Mudminnow 7
Chain Pickerel 6
Redbreast Sunfish 4
Black Crappie 3
Redfin Pickerel 3
Brown Bullhead 2
Fallfish 2
Pirate Perch 2
Creek Chubsucker 1
Largemouth Bass 1
Tadpole Madtom 1
Yellow Perch 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Pickerel Frog
Stinkpot

Crayfish:
No crayfish noted.

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Isoperla Stripetail Stonefly 15
Stenonema Flatheaded Mayfly 9
Cricotopus/Orthocladius Midge 8
Lumbriculidae Worm 6
Cheumatopsyche Net-Spinning Caddisfly 4
Amnicola Freshwater Snail 3
Centroptilum Small Minnow Mayfly 3
Acerpenna Tiny Blue-Winged Olive Mayflies 2
Polycentropus Tube Maker Caddisfly 2
Gomphus Clubtail Dragonfly 2
Polypedilum Non-Biting Midges 2
Tanytarsus Non-Biting Midges 2
Clinotanypus Non-Biting Midge 2
Procladius Non-Biting Midge 2
Labrundinia Non-Biting Midges 1
Caecidotea Isopod 1
Serratella Mayfly 1
Calopteryx Damselfly 1
Stegopterna Black Fly 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.