MBSS Site Summary for: BA-P-002-319-95


Located on JONES FALLS in the Jones Falls watershed, 8-digit code: 02130904.
This stream was visited in the spring on 3/20/1995 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 - 3.3 / 5.0
Benthic IBI Fair - 3.7 / 5.0

Land Use

Land use can provide important information for determining stream health.
(Hint: Screen readers will announce definitions; mouse users can hover over dotted text.)
Catchment area 7,816 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 7.8 %
Agricultural Land Use 31.6 %
Forested Land Use 57.5 %


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

Physical Stream Habitat
Instream Habitat 9/20 (Marginal)
Epifaunal Substrate 17/20 (Optimal)
Velocity/Depth Diversity 16/20 (Optimal)
Pool Quality
Pool Extent = meters 		12/20 (Suboptimal)
Riffle Quality 16/20 (Optimal)
Shading 88 %
Embeddedness 10 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 19.2 ° C
Dissolved oxygen (DO) 8.6 mg/L
pH (lab) 8.01
Conductivity 294 µmho/cm
Alkalinity
(acid neutralizing capacity) 		1931 µeq/L
Dissolved organic carbon (DOC) 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 10 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Longnose Dace 39
Blacknose Dace 37
Creek Chub 34
Rosyside Dace 25
White Sucker 20
Brown Trout 12
Tessellated Darter 8
Cutlip Minnow 6
Green Sunfish 1
Rock Bass 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog

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 79
Parametriocnemus Non-Biting Midges 9
Cheumatopsyche Net-Spinning Caddisfly 6
Optioservus Riffle Beetle 4
Acerpenna Tiny Blue-Winged Olive Mayflies 3
Hydropsyche Net-Spinning Caddisfly 2
Orthocladius Non-Biting Midges 1
Prosimulium Black Fly 1
Ameletus Combmouthed Minnow Mayfly 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.