MBSS Site Summary for: BA-P-141-206-96


Located on BUSH CABIN RUN in the Loch Raven Reservoir watershed, 8-digit code: 02130805.
This stream was visited in the spring on 4/8/1996 and again in the summer on 7/10/1996.

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 Fair - 3.3 / 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 1,925 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 0.1 %
Agricultural Land Use 63.1 %
Forested Land Use 36.6 %


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 16/20 (Optimal)
Velocity/Depth Diversity 15/20 (Suboptimal)
Pool Quality
Pool Extent = meters 		14/20 (Suboptimal)
Riffle Quality 17/20 (Optimal)
Shading 75 %
Embeddedness 20 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 16.1 ° C
Dissolved oxygen (DO) 11.5 mg/L
pH (lab) 7.34
Conductivity 124 µmho/cm
Alkalinity
(acid neutralizing capacity) 		249.9 µeq/L
Dissolved organic carbon (DOC) 0.9 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
Blacknose Dace 440
Rosyside Dace 99
Longnose Dace 53
Common Shiner 22
Creek Chub 22
American Eel 7
Cutlip Minnow 7
White Sucker 7
Bluegill 6
Tessellated Darter 4
Central Stoneroller 2
Northern Hogsucker 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Long-Tailed Salamander
Northern Dusky Salamander
Northern Green Frog

Crayfish:
No crayfish noted.

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Amphinemura Spring Stonefly 14
Ephemerella Sulphur Mayfly 14
Stenonema Flatheaded Mayfly 13
Prosimulium Black Fly 6
Hydropsyche Net-Spinning Caddisfly 5
Parametriocnemus Non-Biting Midges 4
Acroneuria Golden Stoneflies 3
Orthocladius Non-Biting Midges 3
Cricotopus/Orthocladius Midge 2
Cheumatopsyche Net-Spinning Caddisfly 1
Simulium Black Fly 1
Antocha Crane Fly 1
Glossosoma Little Black Caddisfly 1
Eurylophella Mayfly 1
Dolophilodes Medium Evening Sedge Caddisfly 1
Paratanytarsus Non-Biting Midges 1
Optioservus Riffle Beetle 1
Oulimnius Riffle Beetle 1
Acentrella Tiny Blue-Winged Olive Mayflies 1
Acerpenna Tiny Blue-Winged Olive Mayflies 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.