MBSS Site Summary for: LOCH-120-S-2001

Site Photos

Field photo showing stream conditions at site LOCH-120-S-2001-1 (Opens in a new window) Field photo showing stream conditions at site LOCH-120-S-2001-2 (Opens in a new window)

Located on BAISMAN RUN in the Loch Raven Reservoir watershed, 8-digit code: 02130805.
This stream was visited in the spring on 3/7/2001 and again in the summer on 6/28/2001.

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 - 2.7 / 5.0
Benthic IBI Good - 5.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 427 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 2.1 %
Agricultural Land Use 42.9 %
Forested Land Use 54.6 %


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 17/20 (Optimal)
Velocity/Depth Diversity 10/20 (Marginal)
Pool Quality
Pool Extent = 20 meters 		10/20 (Marginal)
Riffle Quality
Riffle Extent = 60 meters 		15/20 (Suboptimal)
Shading 95 %
Embeddedness 20 %


Stream Water Quality:
Water temperature 18.6 ° C
Dissolved oxygen (DO) 8.7 mg/L
pH (lab) 7.14
Conductivity 130 µmho/cm
Alkalinity
(acid neutralizing capacity) 		199 µeq/L
Dissolved organic carbon (DOC) 0.8 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 4 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Creek Chub 80
Blacknose Dace 58
Longnose Dace 20
Rosyside Dace 14
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern Red-Backed Salamander
Northern Dusky Salamander
Northern Red Salamander
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Stiltgrass
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Ephemerella Sulphur Mayfly 35
Prosimulium Black Fly 17
Epeorus Mayfly 17
Nemouridae Nemourid Stonefly 10
Perlidae Common Stonefly 7
Sympotthastia Non-Biting Midges 4
Optioservus Riffle Beetle 4
Pteronarcys Giant Stonefly 3
Acroneuria Golden Stoneflies 2
Pycnopsyche Great Autumn Brown Sedge Caddisfly 2
Ameletus Combmouthed Minnow Mayfly 2
Stenonema Flatheaded Mayfly 2
Eurylophella Mayfly 2
Serratella Mayfly 2
Tipula Crane Fly 2
Eukiefferiella Non-Biting Midges 2
Capniidae Small Winter Stonefly 1
Oemopteryx Stonefly 1
Tanytarsus Non-Biting Midges 1
Tvetenia Non-Biting Midges 1
Heterotrissocladius European Non-Biting Midge 1
Antocha Crane Fly 1
Stegopterna Black Fly 1
Diamesa Bloodworm 1
Chelifera Aquatic Dance Fly 1
Ceratopogon Biting Midge 1
Hydropsyche Net-Spinning Caddisfly 1
Corynoneura Non-Biting Midges 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.