MBSS Site Summary for: BA-P-065-117-96


Located on BUSH CABIN RUN in the Loch Raven Reservoir watershed, 8-digit code: 02130805.
This stream was visited in the spring on 4/17/1996 and again in the summer on 6/13/1996.

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 Poor - 2.0 / 5.0
Benthic IBI Good - 4.3 / 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 298 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 0.7 %
Agricultural Land Use 86.9 %
Forested Land Use 12.4 %


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

Physical Stream Habitat
Instream Habitat 16/20 (Optimal)
Epifaunal Substrate 13/20 (Suboptimal)
Velocity/Depth Diversity 14/20 (Suboptimal)
Pool Quality
Pool Extent = meters 		12/20 (Suboptimal)
Riffle Quality 15/20 (Suboptimal)
Shading 65 %
Embeddedness 50 %


Stream Water Quality:
Water temperature 14.7 ° C
Dissolved oxygen (DO) 10.2 mg/L
pH (lab) 6.84
Conductivity 172 µmho/cm
Alkalinity
(acid neutralizing capacity) 		311.4 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 2 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 168
Creek Chub 7
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Dusky Salamander

Crayfish:
Cambarus bartonii bartonii

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Amphinemura Spring Stonefly 28
Diplectrona Net-Spinning Caddisfly 14
Dolophilodes Medium Evening Sedge Caddisfly 13
Parametriocnemus Non-Biting Midges 10
Cricotopus/Orthocladius Midge 7
Paraleptophlebia Blue Quill Mayfly 7
Polypedilum Non-Biting Midges 4
Rheocricotopus Non-Biting Midges 2
Epeorus Mayfly 2
Simulium Black Fly 2
Ephemerella Sulphur Mayfly 2
Polycentropus Tube Maker Caddisfly 1
Diamesa Bloodworm 1
Leuctra  Rolled-Winged Stonefly 1
Ceratopogon Biting Midge 1
Eurylophella Mayfly 1
Serratella Mayfly 1
Neophylax Caddisfly 1
Pseudolimnophila Crane Fly 1
Tanytarsus Non-Biting Midges 1
Trissopelopia Non-Biting Midges 1
Baetidae Small Minnow Mayfly 1
Lype Net Tube Caddisfly 1
Conchapelopia 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.