MBSS Site Summary for: JONE-312-R-2002

Site Photos

Field photo showing stream conditions at site JONE-312-R-2002-337 (Opens in a new window) Field photo showing stream conditions at site JONE-312-R-2002-338 (Opens in a new window) Field photo showing stream conditions at site JONE-312-R-2002-339 (Opens in a new window) Field photo showing stream conditions at site JONE-312-R-2002-340 (Opens in a new window)

Located on JONES FALLS 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 7/25/2002.

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 Fair - 3.7 / 5.0
Benthic IBI Poor - 2.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 89,312 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 23 %
Agricultural Land Use 41 %
Forested Land Use 36 %


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

Physical Stream Habitat
Instream Habitat 17/20 (Optimal)
Epifaunal Substrate 14/20 (Suboptimal)
Velocity/Depth Diversity 17/20 (Optimal)
Pool Quality
Pool Extent = 60 meters 		16/20 (Optimal)
Riffle Quality
Riffle Extent = 50 meters 		16/20 (Optimal)
Shading 60 %
Embeddedness 55 %
The embeddedness, a measure of silt on the stream bottom, was 55%. This is relatively high, and may exclude some biota.
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 23.9 ° C
Dissolved oxygen (DO) 7.4 mg/L
pH (lab) 7.94
Conductivity 470 µmho/cm
Alkalinity
(acid neutralizing capacity) 		1542 µeq/L
Dissolved organic carbon (DOC) 2.7 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 12 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Longnose Dace 298
White Sucker 220
Satinfin Shiner 193
Tessellated Darter 101
Bluntnose Minnow 70
Yellow Bullhead 42
Redbreast Sunfish 23
Mummichog 15
Swallowtail Shiner 14
American Eel 10
Largemouth Bass 5
Northern Hogsucker 3
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
No amphibians and reptiles noted.

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Cricotopus Non-Biting Midges 51
Hydropsyche Net-Spinning Caddisfly 14
Orthocladiinae Midge 10
Cheumatopsyche Net-Spinning Caddisfly 8
Antocha Crane Fly 5
Simulium Black Fly 5
Cardiocladius Non-Biting Midge 3
Ferrissia Small Air-Breathing Freshwater Limpets 3
Lumbriculidae Worm 3
Caecidotea Isopod 2
Orthocladius Non-Biting Midges 2
Crangonyx Amphipod 2
Stenelmis Beetle 1
Diamesa Bloodworm 1
Girardia Freshwater Flatworm 1
Limnophyes Non-Biting Midge 1
Eukiefferiella Non-Biting Midges 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.