MBSS Site Summary for: LOCH-120-S-2013

Site Photos

Field photo showing stream conditions at site LOCH-120-S-2013-1 (Opens in a new window) Field photo showing stream conditions at site LOCH-120-S-2013-2 (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 3/4/2013 and again in the summer on 6/26/2013.

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 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 15/20 (Suboptimal)
Epifaunal Substrate 17/20 (Optimal)
Velocity/Depth Diversity 12/20 (Suboptimal)
Pool Quality
Pool Extent = 46 meters 		12/20 (Suboptimal)
Riffle Quality
Riffle Extent = 42 meters 		16/20 (Optimal)
Shading 85 %
Embeddedness 25 %


Stream Water Quality:
pH (lab) 7.13
Alkalinity
(acid neutralizing capacity) 		209.7 µeq/L
Dissolved organic carbon (DOC) 0.2399 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 50
Creek Chub 44
Rosyside Dace 28
Brown Trout 10
Longnose Dace 10
Largemouth Bass 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog

Crayfish:
Cambarus bartonii bartonii
Orconectes virilis

Exotic Plants:
Japanese Barberry
Japanese Stiltgrass
Mile-A-Minute
Multiflora Rose
Oriental Bittersweet
Wineberry
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Ephemerella Sulphur Mayfly 60
Isoperla Stripetail Stonefly 10
Epeorus Mayfly 8
Ameletus Combmouthed Minnow Mayfly 6
PERLIDAE Common Stonefly 5
Clinocera Aquatic Dance Fly 4
Corynoneura Non-Biting Midges 4
PERLODIDAE Perlodid Stonefly 4
Orthocladius Non-Biting Midges 3
Parametriocnemus Non-Biting Midges 3
Rhyacophila Free-Living Caddisfly 3
Hydrobaenus Midge 2
Cheumatopsyche Net-Spinning Caddisfly 2
NAIDIDAE Aquatic Worm 2
Prosimulium Black Fly 2
LEUCTRIDAE Rolledwinged Stonefly 2
Neophylax Caddisfly 2
Eukiefferiella Non-Biting Midges 2
Zavrelimyia Non-Biting Midges 2
Polycentropus Tube Maker Caddisfly 1
Ectopria Water Penny Beetle 1
Rheotanytarsus Non-Biting Midges 1
Thienemannimyia Group Non-Biting Midges 1
Paraleptophlebia Blue Quill Mayfly 1
Stenelmis Beetle 1
Strophopteryx Early Brown Stonefly 1
HEPTAGENIIDAE Flathead Mayfly 1
DIAMESINAE Non-Biting Midges 1
Pteronarcys Giant Stonefly 1
Glossosoma Little Black Caddisfly 1
Dolophilodes Medium Evening Sedge Caddisfly 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.