MBSS Site Summary for: PATL-209-X-2015

Site Photos

Field photo showing stream conditions at site PATL-209-X-2015_midpoint-looking-downstream (Opens in a new window) Field photo showing stream conditions at site PATL-209-X-2015_midpoint-looking-upstream (Opens in a new window)

Located on DOGWOOD RUN in the Patapsco River L N Br watershed, 8-digit code: 02130906.
This stream was visited in the spring on 4/1/2015 and again in the summer on 7/7/2015.

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 - 4.3 / 5.0
Benthic IBI Poor - 2.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 4,469 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 40 %
Agricultural Land Use 14.9 %
Forested Land Use 43.3 %


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

Physical Stream Habitat
Instream Habitat 12/20 (Suboptimal)
Epifaunal Substrate 13/20 (Suboptimal)
Velocity/Depth Diversity 14/20 (Suboptimal)
Pool Quality
Pool Extent = 21 meters 		12/20 (Suboptimal)
Riffle Quality
Riffle Extent = 75 meters 		12/20 (Suboptimal)
Shading 70 %
Embeddedness 45 %


Stream Water Quality:
No water quality measurements available for this site.

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 17 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blue Ridge Sculpin 274
Longnose Dace 70
Central Stoneroller 26
Blacknose Dace 19
White Sucker 18
American Eel 15
River Chub 15
Tessellated Darter 11
Creek Chub 10
Cutlip Minnow 6
Rock Bass 4
Bluntnose Minnow 3
Swallowtail Shiner 3
Margined Madtom 2
Redbreast Sunfish 2
Northern Hogsucker 1
Spotfin Shiner 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern Snapping Turtle
Northern Water Snake
Queen Snake

Crayfish:
Cambarus bartonii bartonii
Orconectes virilis

Exotic Plants:
English Ivy
Japanese Honeysuckle
Japanese Hops
Japanese Stiltgrass
Multiflora Rose
Oriental Bittersweet
Privet
Wineberry
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Orthocladius Non-Biting Midges 45
Hydropsyche Net-Spinning Caddisfly 14
Cheumatopsyche Net-Spinning Caddisfly 12
Chimarra Fingernet Caddisfly 8
Antocha Crane Fly 7
Sympotthastia Non-Biting Midges 5
Gammarus Amphipod 2
Diamesa Bloodworm 2
Synorthocladius 1
Clinocera Aquatic Dance Fly 1
Glossosoma Little Black Caddisfly 1
Oulimnius Riffle Beetle 1
Boyeria Spotted Darner Dragonfly 1
Ephemerella Sulphur Mayfly 1
Hemerodromia Tiny Fly 1
Cardiocladius Non-Biting Midge 1
Parametriocnemus Non-Biting Midges 1
Rheotanytarsus 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.