MBSS Site Summary for: BA-P-322-203-96


Located on PINEY RUN in the Loch Raven Reservoir watershed, 8-digit code: 02130805.
This stream was visited in the spring on 4/4/1996 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 - 3.0 / 5.0
Benthic IBI Good - 5.0 / 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 6,523 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 0.6 %
Agricultural Land Use 72.5 %
Forested Land Use 26.6 %


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

Physical Stream Habitat
Instream Habitat 13/20 (Suboptimal)
Epifaunal Substrate 14/20 (Suboptimal)
Velocity/Depth Diversity 16/20 (Optimal)
Pool Quality
Pool Extent = meters 		11/20 (Suboptimal)
Riffle Quality 10/20 (Marginal)
Shading 60 %
Embeddedness 70 %
The embeddedness, a measure of silt on the stream bottom, was 70%. This is relatively high, and may exclude some biota.


Stream Water Quality:
Water temperature 18.6 ° C
Dissolved oxygen (DO) 10.2 mg/L
pH (lab) 7.41
Conductivity 180 µmho/cm
Alkalinity
(acid neutralizing capacity) 		495.3 µeq/L
Dissolved organic carbon (DOC) 1.5 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 14 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Longnose Dace 326
Blacknose Dace 307
Cutlip Minnow 62
Creek Chub 54
River Chub 52
Brown Trout 25
Common Shiner 22
Rosyside Dace 22
White Sucker 22
Tessellated Darter 4
Bluntnose Minnow 2
Northern Hogsucker 2
Margined Madtom 1
Swallowtail Shiner 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Dusky 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 46
Baetis Blue-Winged Olive Mayfly 8
Orthocladius Non-Biting Midges 6
Hydropsyche Net-Spinning Caddisfly 6
Conchapelopia Non-Biting Midges 4
Isonychia Slate Drake Mayfly 4
Optioservus Riffle Beetle 3
Oulimnius Riffle Beetle 2
Antocha Crane Fly 2
Chimarra Fingernet Caddisfly 2
Stenonema Flatheaded Mayfly 2
Stenelmis Beetle 2
Serratella Mayfly 2
Cheumatopsyche Net-Spinning Caddisfly 1
Simuliidae Black Fly 1
Epeorus Mayfly 1
Orthocladiinae A Non-Biting Midges 1
Parametriocnemus Non-Biting Midges 1
Polypedilum Non-Biting Midges 1
Dubiraphia Riffle Beetle 1
Baetidae Small Minnow Mayfly 1
Ephemerellidae Spiny Crawler Mayfly 1
Amphinemura Spring Stonefly 1
Prostoia Spring Stonefly 1
Endochironomus 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.