MBSS Site Summary for: BA-P-077-315-96


Located on NORTH BR in the Jones Falls watershed, 8-digit code: 02130904.
This stream was visited in the spring on 3/8/1996 and again in the summer on 8/29/1996.

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 Good - 4.3 / 5.0
Benthic IBI Good - 4.7 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 3,836 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 4.1 %
Agricultural Land Use 33.2 %
Forested Land Use 56.6 %


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

Physical Stream Habitat
Instream Habitat 19/20 (Optimal)
Epifaunal Substrate 18/20 (Optimal)
Velocity/Depth Diversity 18/20 (Optimal)
Pool Quality
Pool Extent = meters 		17/20 (Optimal)
Riffle Quality 16/20 (Optimal)
Shading 87 %
Embeddedness 20 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 18.5 ° C
Dissolved oxygen (DO) 8.3 mg/L
pH (lab) 7.6
Conductivity 182 µmho/cm
Alkalinity
(acid neutralizing capacity) 		795 µeq/L
Dissolved organic carbon (DOC) 2.6 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 11 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Brown Trout 45
Blacknose Dace 41
White Sucker 30
Longnose Dace 23
Creek Chub 20
Rosyside Dace 11
Cutlip Minnow 8
Green Sunfish 3
Bluegill 2
Tessellated Darter 2
Smallmouth Bass 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern American Toad
Northern Dusky Salamander
Northern Two-Lined Salamander

Crayfish:
Cambarus bartonii bartonii
Orconectes virilis

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Prosimulium Black Fly 23
Ephemerella Sulphur Mayfly 16
Prostoia Spring Stonefly 15
Optioservus Riffle Beetle 6
Isonychia Slate Drake Mayfly 5
Baetis Blue-Winged Olive Mayfly 5
Epeorus Mayfly 4
Stenonema Flatheaded Mayfly 2
Rhyacophila Free-Living Caddisfly 2
Perlidae Common Stonefly 2
Parametriocnemus Non-Biting Midges 2
Cricotopus/Orthocladius Midge 2
Hydropsyche Net-Spinning Caddisfly 1
Conchapelopia Non-Biting Midges 1
Eukiefferiella Non-Biting Midges 1
Nanocladius Non-Biting Midges 1
Orthocladius Non-Biting Midges 1
Zavrelimyia Non-Biting Midges 1
Perlodidae Perlodid Stonefly 1
Pseudolimnophila Crane Fly 1
Eurylophella Mayfly 1
Hemerodromia Tiny Fly 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.