MBSS Site Summary for: JONE-105-R-2002

Site Photos

Field photo showing stream conditions at site JONE-105-R-2002-335 (Opens in a new window) Field photo showing stream conditions at site JONE-105-R-2002-336 (Opens in a new window)

Located on STONY RUN UT in the Jones Falls watershed, 8-digit code: 02130904.
This stream was visited in the spring on 3/4/2002 and again in the summer on 6/4/2002.

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 - 1.0 / 5.0
Benthic IBI Poor - 1.7 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 488 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 83 %
Agricultural Land Use 3 %
Forested Land Use 10 %


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

Physical Stream Habitat
Instream Habitat 1/20 (Poor)
Epifaunal Substrate 2/20 (Poor)
Velocity/Depth Diversity 2/20 (Poor)
Pool Quality
Pool Extent = 37 meters 		6/20 (Marginal)
Riffle Quality
Riffle Extent = 0 meters 		0/20 (Poor)
Shading 12 %
Embeddedness 100 %
The embeddedness, a measure of silt on the stream bottom, was 100%. This is very high, and may adversely affect biotic communities.
Several measures of instream habitat were considered 'Poor' at this location.


Stream Water Quality:
Water temperature 24.9 ° C
Dissolved oxygen (DO) 17.9 mg/L
pH (lab) 7.71
Conductivity 420 µmho/cm
Alkalinity
(acid neutralizing capacity) 		1567 µeq/L
Dissolved organic carbon (DOC) 4.2 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 1 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
No Fish Observed 0
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
No amphibians and reptiles noted.

Crayfish:
No crayfish noted.

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Cardiocladius Non-Biting Midge 48
Simulium Black Fly 31
Cricotopus Non-Biting Midges 14
Orthocladius Non-Biting Midges 7
Eukiefferiella Non-Biting Midges 6
Orthocladiinae Midge 6
Girardia Freshwater Flatworm 5
Hydropsyche Net-Spinning Caddisfly 2
Limonia 1
Placobdella 1
Tubificidae Aquatic Worm 1
Phaenopsectra Non-Biting Midges 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.