MBSS Site Summary for: LOCH-120-S-2003

Site Photos

Field photo showing stream conditions at site LOCH-120-S-2003-651 (Opens in a new window) Field photo showing stream conditions at site LOCH-120-S-2003-652 (Opens in a new window) Field photo showing stream conditions at site LOCH-120-S-2003-653 (Opens in a new window) Field photo showing stream conditions at site LOCH-120-S-2003-872 (Opens in a new window) Field photo showing stream conditions at site LOCH-120-S-2003-873 (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 3/10/2003 and again in the summer on 7/7/2003.

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 - 4.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
(Hint: Screen readers will announce definitions; mouse users can hover over dotted text.)
Catchment area 427 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 2.1 %
Agricultural Land Use 42.9 %
Forested Land Use 54.6 %


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

Physical Stream Habitat
Instream Habitat 18/20 (Optimal)
Epifaunal Substrate 19/20 (Optimal)
Velocity/Depth Diversity 10/20 (Marginal)
Pool Quality
Pool Extent = 33 meters 		10/20 (Marginal)
Riffle Quality
Riffle Extent = 60 meters 		16/20 (Optimal)
Shading 96 %
Embeddedness 16 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 18.1 ° C
Dissolved oxygen (DO) 8.8 mg/L
pH (lab) 7.01
Conductivity 129 µmho/cm
Alkalinity
(acid neutralizing capacity) 		191.9 µeq/L
Dissolved organic carbon (DOC) 1 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
Creek Chub 13
Blacknose Dace 11
Rosyside Dace 10
Brown Trout 1
Longnose Dace 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern Gartersnake
Northern Dusky Salamander
Northern Watersnake

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Japanese Stiltgrass
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Prosimulium Black Fly 88
Ameletus Combmouthed Minnow Mayfly 11
Capniidae Small Winter Stonefly 8
Ephemerella Sulphur Mayfly 7
Tvetenia Non-Biting Midges 7
Prostoia Spring Stonefly 6
Stegopterna Black Fly 3
Corynoneura Non-Biting Midges 2
Sympotthastia Non-Biting Midges 2
Enchytraeidae Aquatic Worm 1
Orthocladius Non-Biting Midges 1
Parametriocnemus Non-Biting Midges 1
Neophylax Caddisfly 1
Tipula Crane Fly 1
Lepidostoma Little Brown Sedge Caddisfly 1
Polycentropus Tube Maker 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.