MBSS Site Summary for: LOCH-120-S-2012

Site Photos

Field photo showing stream conditions at site LOCH-120-S-2012-1 (Opens in a new window) Field photo showing stream conditions at site LOCH-120-S-2012-2 (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 3/5/2012 and again in the summer on 6/26/2012.

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 - 4.3 / 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 17/20 (Optimal)
Epifaunal Substrate 16/20 (Optimal)
Velocity/Depth Diversity 9/20 (Marginal)
Pool Quality
Pool Extent = 40 meters 		10/20 (Marginal)
Riffle Quality
Riffle Extent = 53 meters 		13/20 (Suboptimal)
Shading 75 %
Embeddedness 45 %


Stream Water Quality:
pH (lab) 7.2
Alkalinity
(acid neutralizing capacity) 		212.8 µeq/L
Dissolved organic carbon (DOC) 0.6066 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
Blacknose Dace 56
Creek Chub 55
Rosyside Dace 35
Longnose Dace 8
Brown Trout 2
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog
Northern Water Snake

Crayfish:
Cambarus bartonii bartonii
Orconectes virilis

Exotic Plants:
Japanese Barberry
Mile-A-Minute
Multiflora Rose
Privet
Wineberry
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Ephemerella Sulphur Mayfly 25
Tvetenia Non-Biting Midges 10
Prosimulium Black Fly 9
Diplectrona Net-Spinning Caddisfly 7
Isoperla Stripetail Stonefly 6
PERLODIDAE Perlodid Stonefly 5
Epeorus Mayfly 5
Eukiefferiella Non-Biting Midges 3
Orthocladius Non-Biting Midges 3
Parametriocnemus Non-Biting Midges 2
Diamesa Bloodworm 2
Leuctra  Rolled-Winged Stonefly 2
Ameletus Combmouthed Minnow Mayfly 2
Acroneuria Golden Stoneflies 2
Corynoneura Non-Biting Midges 2
Oulimnius Riffle Beetle 2
LEUCTRIDAE Rolledwinged Stonefly 1
DIPTERA True Fly 1
Taeniopteryx Winter Stonefly 1
Optioservus Riffle Beetle 1
HYDROPSYCHIDAE Common Netspinner Caddisfly 1
Strophopteryx Early Brown Stonefly 1
Musculium Fingernail Clam 1
Rhyacophila Free-Living Caddisfly 1
Clinocera Aquatic Dance Fly 1
Bezzia Biting Midge 1
Paraleptophlebia Blue Quill Mayfly 1
Polypedilum Non-Biting Midges 1
Rheotanytarsus Non-Biting Midges 1
Thienemanniella Non-Biting Midges 1
Stilocladius Midge 1
NEMOURIDAE Nemourid Stonefly 1
Hydropsyche Net-Spinning 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.