MBSS Site Summary for: LOCH-224-R-2002

Site Photos

Field photo showing stream conditions at site LOCH-224-R-2002-510 (Opens in a new window) Field photo showing stream conditions at site LOCH-224-R-2002-511 (Opens in a new window) Field photo showing stream conditions at site LOCH-224-R-2002-512 (Opens in a new window)

Located on PINEY RUN in the Loch Raven Reservoir watershed, 8-digit code: 02130805.
This stream was visited in the spring on 4/3/2002 and again in the summer on 7/30/2002.

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 Good - 4.3 / 5.0
Benthic IBI Good - 4.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 5,839 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 3 %
Agricultural Land Use 73 %
Forested Land Use 24 %


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 14/20 (Suboptimal)
Velocity/Depth Diversity 17/20 (Optimal)
Pool Quality
Pool Extent = 60 meters 		17/20 (Optimal)
Riffle Quality
Riffle Extent = 26 meters 		16/20 (Optimal)
Shading 86 %
Embeddedness 0 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 25.2 ° C
Dissolved oxygen (DO) 8.5 mg/L
pH (lab) 7.74
Conductivity 340 µmho/cm
Alkalinity
(acid neutralizing capacity) 		643.9 µeq/L
Dissolved organic carbon (DOC) 1.8 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 19 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Common Shiner 155
Creek Chub 154
White Sucker 107
Rosyside Dace 56
Cutlip Minnow 51
Longnose Dace 49
Tessellated Darter 39
Brown Trout 36
River Chub 33
Bluntnose Minnow 23
Largemouth Bass 22
Bluegill 18
Blacknose Dace 10
Margined Madtom 6
Northern Hogsucker 6
Pumpkinseed 2
Smallmouth Bass 2
Green Sunfish 1
Rosyface Shiner 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Japanese Stiltgrass
Mile-A-Minute
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Ephemerella Sulphur Mayfly 84
Hydropsyche Net-Spinning Caddisfly 17
Cheumatopsyche Net-Spinning Caddisfly 8
Chimarra Fingernet Caddisfly 6
Stenelmis Beetle 4
Antocha Crane Fly 4
Rhyacophila Free-Living Caddisfly 2
Oulimnius Riffle Beetle 2
Psephenus Water Penny 2
Eukiefferiella Non-Biting Midges 2
Orthocladius Non-Biting Midges 2
Tvetenia Non-Biting Midges 2
Optioservus Riffle Beetle 1
Rheosmittia Non-Biting Midges 1
Leucotrichia 1
Conchapelopia Non-Biting Midges 1
Stenonema Flatheaded Mayfly 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.