MBSS Site Summary for: LOGU-211-R-2002

Site Photos

Field photo showing stream conditions at site LOGU-211-R-2002-372 (Opens in a new window) Field photo showing stream conditions at site LOGU-211-R-2002-373 (Opens in a new window) Field photo showing stream conditions at site LOGU-211-R-2002-374 (Opens in a new window) Field photo showing stream conditions at site LOGU-211-R-2002-533 (Opens in a new window) Field photo showing stream conditions at site LOGU-211-R-2002-534 (Opens in a new window)

Located on LONG GREEN CR 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 6/13/2002.

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 Fair - 3.0 / 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 1,113 acres Cows standing in a stream at a site with high agricultural land use. Cows survey the sampling procedure at this extreme example of a highly agriculturalized site.
Urban Land Use 2 %
Agricultural Land Use 77 %
Forested Land Use 20 %


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 15/20 (Suboptimal)
Velocity/Depth Diversity 7/20 (Marginal)
Pool Quality
Pool Extent = 75 meters 		17/20 (Optimal)
Riffle Quality
Riffle Extent = 0 meters 		0/20 (Poor)
Shading 70 %
Embeddedness 25 %


Stream Water Quality:
Water temperature 13.7 ° C
Dissolved oxygen (DO) 6.1 mg/L
pH (lab) 7.81
Conductivity 340 µmho/cm
Alkalinity
(acid neutralizing capacity) 		2192 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 9 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
American Eel 34
Blacknose Dace 31
Tessellated Darter 23
White Sucker 23
Largemouth Bass 22
Creek Chub 20
Bluegill 4
Brown Trout 2
Longnose Dace 2
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

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

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Girardia Freshwater Flatworm 50
Conchapelopia Non-Biting Midges 13
Orthocladius Non-Biting Midges 13
Optioservus Riffle Beetle 13
Simulium Black Fly 5
Micropsectra Non-Biting Midges 4
Lumbriculidae Worm 3
Rheosmittia Non-Biting Midges 3
Stenelmis Beetle 3
Caecidotea Isopod 2
Dicrotendipes Non-Biting Midges 2
Hydropsyche Net-Spinning Caddisfly 1
Chironomidae Non-Biting Midge 1
Tubificidae Aquatic Worm 1
Cricotopus 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.