MBSS Site Summary for: LOCH-120-S-2017

Site Photos

Field photo showing stream conditions at site LOCH-120-S-2017-ApproximateMidpointLookingUpstream (Opens in a new window) Field photo showing stream conditions at site LOCH-120-S-2017-MidpointLookingDownstream (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 3/22/2017 and again in the summer on 6/30/2017.

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 - 5.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 417 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 39.1 %
Agricultural Land Use 0.2 %
Forested Land Use 59.1 %


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

Physical Stream Habitat
Instream Habitat 17/20 (Optimal)
Epifaunal Substrate 16/20 (Optimal)
Velocity/Depth Diversity 9/20 (Marginal)
Pool Quality
Pool Extent = 26 meters 		8/20 (Marginal)
Riffle Quality
Riffle Extent = 62 meters 		14/20 (Suboptimal)
Shading 92 %
Embeddedness 45 %


Stream Water Quality:
pH (lab) 7.18
Alkalinity
(acid neutralizing capacity) 		227.9 µeq/L
Dissolved organic carbon (DOC) 1.2408 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 6 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 55
Creek Chub 30
Rosyside Dace 23
Brook Trout 13
Longnose Dace 8
Brown Trout 3
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Two-Lined Salamander
Pickerel Frog

Crayfish:
Cambarus bartonii bartonii
Orconectes virilis

Exotic Plants:
Japanese Barberry
Japanese Honeysuckle
Japanese Stiltgrass
Multiflora Rose
Wineberry
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
EPHEMERELLA Sulphur Mayfly 33
EPEORUS Mayfly 14
OULIMNIUS Riffle Beetle 12
HYDROPSYCHE Net-Spinning Caddisfly 9
EUKIEFFERIELLA Non-Biting Midges 9
PERLODIDAE Perlodid Stonefly 6
PERLIDAE Common Stonefly 6
LEUCTRIDAE Rolledwinged Stonefly 4
EPHEMERELLIDAE Spiny Crawler Mayfly 4
AMPHINEMURA Spring Stonefly 4
DIPLECTRONA Net-Spinning Caddisfly 3
NEOPHYLAX Caddisfly 3
HEPTAGENIIDAE Flathead Mayfly 2
PTERONARCYS Giant Stonefly 2
CHLOROPERLIDAE Green Stonefly 2
ELMIDAE Riffle Beetle 2
ISOPERLA Stripetail Stonefly 2
NEMOURIDAE Nemourid Stonefly 2
CHEUMATOPSYCHE Net-Spinning Caddisfly 1
CORYNONEURA Non-Biting Midges 1
DIAMESINAE Non-Biting Midges 1
ORTHOCLADIUS Non-Biting Midges 1
PARAMETRIOCNEMUS Non-Biting Midges 1
THIENEMANNIMYIA GROUP Non-Biting Midges 1
OPTIOSERVUS Riffle Beetle 1
LEPIDOSTOMA Little Brown Sedge Caddisfly 1
MACCAFFERTIUM March Brown And Cahill Mayfly 1
TELOGANOPSIS Mayfly 1
ORTHOCLADIINAE Midge 1
STILOCLADIUS Midge 1
RHYACOPHILA Free-Living Caddisfly 1
TIPULA Crane Fly 1
AMELETUS Combmouthed Minnow Mayfly 1
CLINOCERA Aquatic Dance Fly 1
ANCHYTARSUS Beetle 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.