MBSS Site Summary for: PG-N-249-128-97


Located on PEA HILL BR in the Piscataway Creek watershed, 8-digit code: 02140203.
This stream was visited in the spring on 3/1/1997 and again in the summer on 7/8/1997.

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 Poor - 2.7 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 2,059 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 54.4 %
Agricultural Land Use 19.2 %
Forested Land Use 25.4 %


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

Physical Stream Habitat
Instream Habitat not sampled
Epifaunal Substrate not sampled
Velocity/Depth Diversity not sampled
Pool Quality not sampled
Riffle Quality not sampled
Shading not sampled
Embeddedness not sampled


Stream Water Quality:
pH (lab) 6.85
Alkalinity
(acid neutralizing capacity) 		345.5 µeq/L
Dissolved organic carbon (DOC) 3.1 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:
Fish data is unavailable or no fish observed.

Amphibians and Reptiles:
Eastern Box Turtle
Northern Watersnake

Crayfish:
No crayfish noted.

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Cricotopus/Orthocladius Midge 15
Cricotopus Non-Biting Midges 15
Xylotopus Midge 8
Lumbriculidae Worm 8
Conchapelopia Non-Biting Midges 5
Acerpenna Tiny Blue-Winged Olive Mayflies 4
Hemerodromia Tiny Fly 2
Isoperla Stripetail Stonefly 2
Caenis Mayfly 2
Cordulegaster Spiketail Dragonfly 1
Brillia Non-Biting Midges 1
Macromia 1
Antocha Crane Fly 1
Stenochironomus European Non-Biting Midge 1
Gyrinus Whirlygig 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.