MBSS Site Summary for: LOCH-120-S-2011

Site Photos

Field photo showing stream conditions at site LOCH-120-S-2011-1 (Opens in a new window) Field photo showing stream conditions at site LOCH-120-S-2011-2 (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 3/8/2011 and again in the summer on 6/6/2011.

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.
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Catchment area 417 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 2.2 %
Agricultural Land Use 41.4 %
Forested Land Use 56 %


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 16/20 (Optimal)
Velocity/Depth Diversity 8/20 (Marginal)
Pool Quality
Pool Extent = 30 meters 		9/20 (Marginal)
Riffle Quality
Riffle Extent = 46 meters 		15/20 (Suboptimal)
Shading 90 %
Embeddedness 15 %


Stream Water Quality:
pH (lab) 7.11
Alkalinity
(acid neutralizing capacity) 		219.9 µeq/L
Dissolved organic carbon (DOC) 1.3879 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 5 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Creek Chub 91
Blacknose Dace 72
Rosyside Dace 38
Longnose Dace 4
Brown Trout 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog
Northern Two-Lined Salamander
Wood Frog

Crayfish:
Cambarus bartonii bartonii
Orconectes virilis

Exotic Plants:
Japanese Barberry
Japanese Stiltgrass
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Prosimulium Black Fly 21
NEMOURIDAE Nemourid Stonefly 13
Eukiefferiella Non-Biting Midges 8
Neophylax Caddisfly 7
Diplectrona Net-Spinning Caddisfly 6
Corynoneura Non-Biting Midges 5
Optioservus Riffle Beetle 4
Allocapnia Small Winter Stonefly 3
Parametriocnemus Non-Biting Midges 3
Cheumatopsyche Net-Spinning Caddisfly 3
Dolophilodes Medium Evening Sedge Caddisfly 3
Clinocera Aquatic Dance Fly 2
PERLIDAE Common Stonefly 2
Antocha Crane Fly 2
Epeorus Mayfly 2
Hydropsyche Net-Spinning Caddisfly 2
Ephemerella Sulphur Mayfly 2
LUMBRICULIDAE Worm 1
Oulimnius Riffle Beetle 1
Polypedilum Non-Biting Midges 1
Sympotthastia Non-Biting Midges 1
Tanypodinae Non-Biting Midges 1
Tanytarsus Non-Biting Midges 1
Tvetenia Non-Biting Midges 1
Hexatoma Crane Fly 1
Tipula Crane Fly 1
HEPTAGENIIDAE Flathead Mayfly 1
Acroneuria Golden Stoneflies 1
Maccaffertium March Brown And Cahill Mayfly 1
Anchytarsus Beetle 1
CERATOPOGONIDAE Biting Midge 1
Stegopterna Black Fly 1
Stilocladius Midge 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.