MBSS Site Summary for: PATL-111-R-2014

Site Photos

Field photo showing stream conditions at site PATL-111-R-2014-1 (Opens in a new window) Field photo showing stream conditions at site PATL-111-R-2014-2 (Opens in a new window)

Located on DEEP RUN UT in the Patapsco River L N Br watershed, 8-digit code: 02130906.
This stream was visited in the spring on 3/6/2014 and again in the summer on 6/9/2014.

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 Poor - 1.7 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 202 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 86.6 %
Agricultural Land Use 0 %
Forested Land Use 13.4 %


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

Physical Stream Habitat
Instream Habitat 7/20 (Marginal)
Epifaunal Substrate 8/20 (Marginal)
Velocity/Depth Diversity 11/20 (Suboptimal)
Pool Quality
Pool Extent = 56 meters 		12/20 (Suboptimal)
Riffle Quality
Riffle Extent = 19 meters 		7/20 (Marginal)
Shading 70 %
Embeddedness 15 %


Stream Water Quality:
pH (lab) 7.43
Alkalinity
(acid neutralizing capacity) 		2013.3 µeq/L
Dissolved organic carbon (DOC) 1.027 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 3 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 171
Creek Chub 77
American Eel 5
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Northern Two-Lined Salamander

Crayfish:
Cambarus diogenes

Exotic Plants:
Bamboo
English Ivy
Garlic Mustard
Japanese Honeysuckle
Mile-A-Minute
Multiflora Rose
Porcelainberry
Wineberry
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Orthocladius Non-Biting Midges 23
Hydrobaenus Midge 20
Tubificidae Aquatic Worm 18
Lumbriculidae Worm 10
Parametriocnemus Non-Biting Midges 6
Physa Air-Breathing Freshwater Snail 5
Cheumatopsyche Net-Spinning Caddisfly 3
Simulium Black Fly 3
Tipula Crane Fly 2
Zavrelimyia Non-Biting Midges 2
Fossaria Air Breathing Freshwater Snail 2
Prosimulium Black Fly 1
Hydropsyche Net-Spinning Caddisfly 1
Ablabesmyia Non-Biting Midge 1
Procladius Non-Biting Midge 1
Musculium Fingernail Clam 1
Phaenopsectra Non-Biting Midges 1
Tvetenia 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.