MBSS Site Summary for: PATL-103-R-2000

Site Photos

Field photo showing stream conditions at site PATL-103-R-2000-06_04 (Opens in a new window) Field photo showing stream conditions at site PATL-103-R-2000-06_05 (Opens in a new window) Field photo showing stream conditions at site PATL-103-R-2000-06_06 (Opens in a new window) Field photo showing stream conditions at site PATL-103-R-2000-06_07 (Opens in a new window)

Located on DEEP RUN UT2 in the Patapsco River L N Br watershed, 8-digit code: 02130906.
This stream was visited in the spring on 3/9/2000 and again in the summer on 6/29/2000.

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 Good - 4.0 / 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 2,243 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 27.3 %
Agricultural Land Use 22.3 %
Forested Land Use 45.1 %


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

Physical Stream Habitat
Instream Habitat 11/20 (Suboptimal)
Epifaunal Substrate 12/20 (Suboptimal)
Velocity/Depth Diversity 12/20 (Suboptimal)
Pool Quality
Pool Extent = 38 meters 		12/20 (Suboptimal)
Riffle Quality
Riffle Extent = 55 meters 		14/20 (Suboptimal)
Shading 60 %
Embeddedness 24 %


Stream Water Quality:
Water temperature 21.6 ° C
Dissolved oxygen (DO) 7.3 mg/L
pH (lab) 8.06
Conductivity 330 µmho/cm
Alkalinity
(acid neutralizing capacity) 		1523 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 12 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 91
Central Stoneroller 80
American Eel 45
Rosyside Dace 45
Longnose Dace 39
Tessellated Darter 34
White Sucker 34
Creek Chub 16
Green Sunfish 12
Swallowtail Shiner 5
Golden Shiner 2
Lepomis Hybrid 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

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

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
Cricotopus/Orthocladius Midge 54
Diamesa Bloodworm 11
Thienemanniella Non-Biting Midges 11
Polypedilum Non-Biting Midges 6
Sympotthastia Non-Biting Midges 6
Cricotopus Non-Biting Midges 3
Nanocladius Non-Biting Midges 3
Orthocladiinae A Non-Biting Midges 3
Stilocladius Midge 3
Brillia Non-Biting Midges 2
Naididae Aquatic Worm 2
Simulium Black Fly 2
Parametriocnemus Non-Biting Midges 2
Diamesinae Non-Biting Midges 2
Tvetenia Non-Biting Midges 2
Rheocricotopus Non-Biting Midges 1
Trissopelopia Non-Biting Midges 1
Clinocera Aquatic Dance Fly 1
Conchapelopia Non-Biting Midges 1
Corynoneura Non-Biting Midges 1
Limnophyes 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.