MBSS Site Summary for: LOGU-103-R-2002

Site Photos

Field photo showing stream conditions at site LOGU-103-R-2002-363 (Opens in a new window) Field photo showing stream conditions at site LOGU-103-R-2002-364 (Opens in a new window) Field photo showing stream conditions at site LOGU-103-R-2002-365 (Opens in a new window) Field photo showing stream conditions at site LOGU-103-R-2002-529 (Opens in a new window)

Located on JENNIFER BR in the Lower Gunpowder Falls watershed, 8-digit code: 02130802.
This stream was visited in the spring on 3/7/2002 and again in the summer on 6/12/2002.

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 Poor - 1.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 661 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 73 %
Agricultural Land Use 7 %
Forested Land Use 19 %


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 17/20 (Optimal)
Velocity/Depth Diversity 15/20 (Suboptimal)
Pool Quality
Pool Extent = 33 meters 		15/20 (Suboptimal)
Riffle Quality
Riffle Extent = 42 meters 		7/20 (Marginal)
Shading 79 %
Embeddedness 45 %


Stream Water Quality:
Water temperature 19.9 ° C
Dissolved oxygen (DO) 5.8 mg/L
pH (lab) 7.72
Conductivity 430 µmho/cm
Alkalinity
(acid neutralizing capacity) 		1784 µeq/L
Dissolved organic carbon (DOC) 2.5 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 7 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 189
Creek Chub 114
Longnose Dace 94
White Sucker 41
American Eel 27
Rosyside Dace 19
Redbreast Sunfish 11
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Dicrotendipes Non-Biting Midges 31
Orthocladius Non-Biting Midges 21
Crangonyx Amphipod 20
Sympotthastia Non-Biting Midges 20
Cricotopus Non-Biting Midges 5
Conchapelopia Non-Biting Midges 4
Orthocladiinae Midge 3
Thienemanniella Non-Biting Midges 3
Calopteryx Damselfly 2
Phaenopsectra Non-Biting Midges 2
Rheosmittia Non-Biting Midges 1
Parametriocnemus Non-Biting Midges 1
Girardia Freshwater Flatworm 1
Cheumatopsyche Net-Spinning Caddisfly 1
Hydropsyche Net-Spinning Caddisfly 1
Brillia Non-Biting Midges 1
Chaetocladius Non-Biting Midges 1
Simulium Black Fly 1
Diamesa Bloodworm 1
Hydropsychidae Common Netspinner Caddisfly 1
Tanytarsus Non-Biting Midges 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.