MBSS Site Summary for: LOCH-102-R-2007

Site Photos

Field photo showing stream conditions at site LOCH-102-R-2007-1 (Opens in a new window) Field photo showing stream conditions at site LOCH-102-R-2007-2 (Opens in a new window)

Located on Councilmans Run UT1 in the Loch Raven Reservoir watershed, 8-digit code: 02130805.
This stream was visited in the spring on 3/20/2007 and again in the summer on 6/11/2007.

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 - 1.0 / 5.0
Benthic IBI Good - 4.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 121 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0.8 %
Agricultural Land Use 14 %
Forested Land Use 84.8 %


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

Physical Stream Habitat
Instream Habitat 9/20 (Marginal)
Epifaunal Substrate 11/20 (Suboptimal)
Velocity/Depth Diversity 6/20 (Marginal)
Pool Quality
Pool Extent = 3 meters 		3/20 (Poor)
Riffle Quality
Riffle Extent = 75 meters 		10/20 (Marginal)
Shading 95 %
Embeddedness 35 %


Stream Water Quality:
Water temperature 15.9 ° C
Dissolved oxygen (DO) 9.2 mg/L
pH (lab) 7.13
Conductivity 210 µmho/cm
Alkalinity
(acid neutralizing capacity) 		270.4 µeq/L
Dissolved organic carbon (DOC) 0.9322 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 1 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
No Fish Observed 0
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern American Toad
Eastern Box Turtle
Eastern Red-Backed Salamander
Fowler's Toad
Northern Dusky Salamander
Northern Two-Lined Salamander
Pickerel Frog

Crayfish:
Cambarus bartonii bartonii

Exotic Plants:
Garlic Mustard
Vinca Vine
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Prosimulium Black Fly 19
Ephemerella Sulphur Mayfly 16
Amphinemura Spring Stonefly 12
Crangonyx Amphipod 12
Stenonema Flatheaded Mayfly 6
Diplectrona Net-Spinning Caddisfly 6
Paraphaenocladius Non-Biting Midges 6
Diamesa Bloodworm 5
Stegopterna Black Fly 4
Leuctridae Rolledwinged Stonefly 4
Eukiefferiella Non-Biting Midges 3
Tipula Crane Fly 2
Parametriocnemus Non-Biting Midges 2
Prostoia Spring Stonefly 1
Molophilus 1
Neophylax Caddisfly 1
Hexatoma Crane Fly 1
Ceratopogon Biting Midge 1
Probezzia Biting Midges 1
Micropsectra Non-Biting Midges 1
Parachaetocladius Non-Biting Midge 1
Baetidae Small Minnow Mayfly 1
Cordulegaster Spiketail Dragonfly 1
Stempellinella Non-Biting Midges 1
Tallaperla Roach-Like Stonefly 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.