MBSS Site Summary for: BA-P-077-322-95


Located on NORTH BR in the Jones Falls watershed, 8-digit code: 02130904.
This stream was visited in the spring on 4/10/1995 and again in the summer on 6/21/1995.

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 Fair - 3.0 / 5.0
Benthic IBI Good - 4.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 3,115 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 3.4 %
Agricultural Land Use 36.5 %
Forested Land Use 52.7 %


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

Physical Stream Habitat
Instream Habitat 14/20 (Suboptimal)
Epifaunal Substrate 17/20 (Optimal)
Velocity/Depth Diversity 10/20 (Marginal)
Pool Quality
Pool Extent = meters 		11/20 (Suboptimal)
Riffle Quality 16/20 (Optimal)
Shading 90 %
Embeddedness 15 %


Stream Water Quality:
Water temperature 17.1 ° C
Dissolved oxygen (DO) 8.2 mg/L
pH (lab) 7.65
Conductivity 216 µmho/cm
Alkalinity
(acid neutralizing capacity) 		1058 µeq/L
Dissolved organic carbon (DOC) 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 9 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 121
Creek Chub 70
Brown Trout 63
Longnose Dace 34
Rosyside Dace 17
Tessellated Darter 17
White Sucker 17
Bluegill 1
Green Sunfish 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern Red-Backed Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Ephemerella Sulphur Mayfly 64
Epeorus Mayfly 8
Stenonema Flatheaded Mayfly 5
Hydropsyche Net-Spinning Caddisfly 5
Rhyacophila Free-Living Caddisfly 3
Dolophilodes Medium Evening Sedge Caddisfly 3
Diphetor Mayfly 2
Serratella Mayfly 2
Micropsectra Non-Biting Midges 1
Orthocladius Non-Biting Midges 1
Oulimnius Riffle Beetle 1
Amphinemura Spring Stonefly 1
Nigronia Megaloptera (Dark Fishfly) 1
Cheumatopsyche Net-Spinning Caddisfly 1
Antocha Crane 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.