MBSS Site Summary for: HA-P-151-102-96


Located on PLUMTREE RUN in the Atkisson Reservoir watershed, 8-digit code: 02130703.
This stream was visited in the spring on 3/25/1996 and again in the summer on 7/18/1996.

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 Poor - 2.3 / 5.0
Benthic IBI Poor - 1.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 1,215 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 46.3 %
Agricultural Land Use 31.6 %
Forested Land Use 21.9 %


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

Physical Stream Habitat
Instream Habitat 8/20 (Marginal)
Epifaunal Substrate 11/20 (Suboptimal)
Velocity/Depth Diversity 6/20 (Marginal)
Pool Quality
Pool Extent = meters 		6/20 (Marginal)
Riffle Quality 10/20 (Marginal)
Shading 98 %
Embeddedness 65 %
The embeddedness, a measure of silt on the stream bottom, was 65%. This is relatively high, and may exclude some biota.


Stream Water Quality:
Water temperature 20.3 ° C
Dissolved oxygen (DO) 9.5 mg/L
pH (lab) 7.25
Conductivity 255 µmho/cm
Alkalinity
(acid neutralizing capacity) 		811.7 µeq/L
Dissolved organic carbon (DOC) 2.1 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:
The following 8 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 91
Creek Chub 73
Rosyside Dace 20
Bluntnose Minnow 17
Longnose Dace 10
Tessellated Darter 9
White Sucker 4
Redbreast Sunfish 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Pickerel Frog

Crayfish:
Orconectes limosus
Procambarus acutus acutus

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Cricotopus/Orthocladius Midge 92
Hydropsyche Net-Spinning Caddisfly 2
Conchapelopia Non-Biting Midges 2
Eurylophella Mayfly 2
Antocha Crane Fly 1
Oulimnius Riffle Beetle 1
Ephemerella Sulphur Mayfly 1
Lumbriculidae Worm 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.