MBSS Site Summary for: BA-P-202-202-96


Located on PINEY CR in the Loch Raven Reservoir watershed, 8-digit code: 02130805.
This stream was visited in the spring on 4/16/1996 and again in the summer on 7/1/1996.

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 - 2.3 / 5.0
Benthic IBI Good - 4.7 / 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 1,682 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 1.4 %
Agricultural Land Use 60.5 %
Forested Land Use 37.9 %


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 13/20 (Suboptimal)
Velocity/Depth Diversity 14/20 (Suboptimal)
Pool Quality
Pool Extent = meters 		11/20 (Suboptimal)
Riffle Quality 15/20 (Suboptimal)
Shading 75 %
Embeddedness 40 %


Stream Water Quality:
Water temperature 16.5 ° C
Dissolved oxygen (DO) 10.7 mg/L
pH (lab) 7.26
Conductivity 195 µmho/cm
Alkalinity
(acid neutralizing capacity) 		315.9 µeq/L
Dissolved organic carbon (DOC) 1.7 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 6 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 54
Longnose Dace 48
Brown Trout 23
Rosyside Dace 3
Creek Chub 1
White Sucker 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Pickerel Frog

Crayfish:
Orconectes virilis

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Ephemerella Sulphur Mayfly 51
Epeorus Mayfly 6
Cricotopus/Orthocladius Midge 5
Acerpenna Tiny Blue-Winged Olive Mayflies 5
Hydropsyche Net-Spinning Caddisfly 4
Parametriocnemus Non-Biting Midges 3
Polypedilum Non-Biting Midges 3
Leuctra  Rolled-Winged Stonefly 3
Simulium Black Fly 2
Stenonema Flatheaded Mayfly 2
Conchapelopia Non-Biting Midges 2
Cheumatopsyche Net-Spinning Caddisfly 2
Hemerodromia Tiny Fly 2
Amphinemura Spring Stonefly 2
Diplectrona Net-Spinning Caddisfly 1
Perlodidae Perlodid Stonefly 1
Optioservus Riffle Beetle 1
Rhyacophila Free-Living Caddisfly 1
Dolophilodes Medium Evening Sedge Caddisfly 1
Paraleptophlebia Blue Quill Mayfly 1
Lanthus Clubtail Dragonfly 1
Antocha Crane Fly 1
Tipula 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.