MBSS Site Summary for: BA-P-341-212-96


Located on PINEY RUN 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 7/2/1996.

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 - 3.7 / 5.0
Benthic IBI Fair - 3.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 4,158 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 0.9 %
Agricultural Land Use 75 %
Forested Land Use 23.8 %


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

Physical Stream Habitat
Instream Habitat 10/20 (Marginal)
Epifaunal Substrate 12/20 (Suboptimal)
Velocity/Depth Diversity 12/20 (Suboptimal)
Pool Quality
Pool Extent = meters 		11/20 (Suboptimal)
Riffle Quality 15/20 (Suboptimal)
Shading 50 %
Embeddedness 65 %
The embeddedness, a measure of silt on the stream bottom, was 65%. This is relatively high, and may exclude some biota.


Stream Water Quality:
Water temperature 21 ° C
Dissolved oxygen (DO) 10.4 mg/L
pH (lab) 7.35
Conductivity 242 µmho/cm
Alkalinity
(acid neutralizing capacity) 		576.6 µeq/L
Dissolved organic carbon (DOC) 3.6 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
Longnose Dace 150
Blacknose Dace 99
River Chub 28
Creek Chub 24
Rosyside Dace 22
Brown Trout 21
Cutlip Minnow 21
Common Shiner 15
Margined Madtom 3
White Sucker 2
Tessellated Darter 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Dusky Salamander
Northern Two-Lined Salamander

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 31
Cricotopus/Orthocladius Midge 17
Stenonema Flatheaded Mayfly 7
Hydropsyche Net-Spinning Caddisfly 7
Conchapelopia Non-Biting Midges 7
Polypedilum Non-Biting Midges 3
Antocha Crane Fly 3
Cladotanytarsus Non-Biting Midge 2
Lumbriculidae Worm 2
Eccoptura Yellow Stone Stonefly 1
Microtendipes Non-Biting Midges 1
Isonychia Slate Drake Mayfly 1
Polycentropus Tube Maker Caddisfly 1
Pseudolimnophila Crane Fly 1
Tipula Crane Fly 1
Leuctra  Rolled-Winged Stonefly 1
Helichus Beetle 1
Paraleptophlebia Blue Quill Mayfly 1
Epeorus Mayfly 1
Cheumatopsyche Net-Spinning Caddisfly 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.