MBSS Site Summary for: PATL-209-X-2016

Site Photos

Field photo showing stream conditions at site PATL-209-X-2016_midpoint looking downstream (Opens in a new window) Field photo showing stream conditions at site PATL-209-X-2016_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 3/9/2016 and again in the summer on 8/22/2016.

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 Fair - 3.3 / 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 17/20 (Optimal)
Epifaunal Substrate 18/20 (Optimal)
Velocity/Depth Diversity 17/20 (Optimal)
Pool Quality
Pool Extent = 7 meters 		11/20 (Suboptimal)
Riffle Quality
Riffle Extent = 68 meters 		14/20 (Suboptimal)
Shading 85 %
Embeddedness 15 %
Several measures of instream habitat were considered 'Optimal' at this location.


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
Longnose Dace 88
Blue Ridge Sculpin 67
River Chub 35
American Eel 12
Blacknose Dace 11
Cutlip Minnow 9
Tessellated Darter 6
Creek Chub 5
Yellow Bullhead 5
Central Stoneroller 4
Common Shiner 4
Bluntnose Minnow 3
Rock Bass 3
Margined Madtom 2
Redbreast Sunfish 2
White Sucker 2
Rosyside Dace 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Japanese Stiltgrass
Multiflora Rose
Privet
Wavyleaf Basketgrass
Wineberry
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Orthocladius Non-Biting Midges 25
Cheumatopsyche Net-Spinning Caddisfly 22
Hydropsyche Net-Spinning Caddisfly 9
Gammarus Amphipod 8
Polycentropus Tube Maker Caddisfly 8
Sympotthastia Non-Biting Midges 7
Thienemanniella Non-Biting Midges 5
Parametriocnemus Non-Biting Midges 5
Orthocladiinae Midge 5
Chimarra Fingernet Caddisfly 5
Ephemerella Sulphur Mayfly 5
Corynoneura Non-Biting Midges 4
Clinocera Aquatic Dance Fly 2
Ameletus Combmouthed Minnow Mayfly 2
Rheotanytarsus Non-Biting Midges 2
Zavrelimyia Non-Biting Midges 2
Ancyronyx Spider Riffle Beetle 1
Boyeria Spotted Darner Dragonfly 1
Acerpenna Tiny Blue-Winged Olive Mayflies 1
Paratanytarsus Non-Biting Midges 1
Thienemannimyia Group Non-Biting Midges 1
Tanytarsus Non-Biting Midges 1
Antocha Crane Fly 1
Calopteryx Damselfly 1
Corydalus Dobsonfly 1
Ptilostomis Giant Casemaker Caddisfly 1
Oecetis Long-Horned Caddisfly 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.