MBSS Site Summary for: LOCH-209-S-2000

Site Photos

Field photo showing stream conditions at site LOCH-209-S-2000-01 (Opens in a new window) Field photo showing stream conditions at site LOCH-209-S-2000-02 (Opens in a new window)

Located on GREENE BR in the Loch Raven Reservoir watershed, 8-digit code: 02130805.
This stream was visited in the spring on 3/23/2000 and again in the summer on 9/6/2000.

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 Fair - 3.7 / 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 2,553 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 2.4 %
Agricultural Land Use 43.6 %
Forested Land Use 53.9 %


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

Physical Stream Habitat
Instream Habitat 16/20 (Optimal)
Epifaunal Substrate 18/20 (Optimal)
Velocity/Depth Diversity 15/20 (Suboptimal)
Pool Quality
Pool Extent = 20 meters 		14/20 (Suboptimal)
Riffle Quality
Riffle Extent = 70 meters 		17/20 (Optimal)
Shading 80 %
Embeddedness 10 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 16.3 ° C
Dissolved oxygen (DO) 9.2 mg/L
pH (lab) 7.54
Conductivity 240 µmho/cm
Alkalinity
(acid neutralizing capacity) 		614 µeq/L
Dissolved organic carbon (DOC) 1.2 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 14 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Creek Chub 159
Longnose Dace 97
Blacknose Dace 79
Brown Trout 20
Bluegill 14
White Sucker 12
Largemouth Bass 10
Pumpkinseed 9
Brown Bullhead 8
Rosyside Dace 7
Tessellated Darter 3
Central Stoneroller 1
Golden Shiner 1
Northern Hogsucker 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Mile-A-Minute
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Ephemerella Sulphur Mayfly 94
Ameletus Combmouthed Minnow Mayfly 14
Eurylophella Mayfly 4
Serratella Mayfly 2
Cricotopus/Orthocladius Midge 2
Diplectrona Net-Spinning Caddisfly 2
Conchapelopia Non-Biting Midges 2
Antocha Crane Fly 2
Epeorus Mayfly 1
Psephenus Water Penny 1
Prosimulium Black Fly 1
Corynoneura Non-Biting Midges 1
Eukiefferiella Non-Biting Midges 1
Sympotthastia Non-Biting Midges 1
Amphinemura Spring Stonefly 1
Hydropsyche Net-Spinning Caddisfly 1
Paramerina Non-Biting 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.