MBSS Site Summary for: PATL-209-X-2014

Site Photos

Field photo showing stream conditions at site PATL-209-X-2014-1 (Opens in a new window) Field photo showing stream conditions at site PATL-209-X-2014-2 (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 3/6/2014 and again in the summer on 6/11/2014.

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 Good - 4.0 / 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 17/20 (Optimal)
Epifaunal Substrate 18/20 (Optimal)
Velocity/Depth Diversity 14/20 (Suboptimal)
Pool Quality
Pool Extent = 9 meters 		12/20 (Suboptimal)
Riffle Quality
Riffle Extent = 71 meters 		17/20 (Optimal)
Shading 60 %
Embeddedness 95 %
The embeddedness, a measure of silt on the stream bottom, was 95%. This is relatively high, and may exclude some biota.
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 14 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blue Ridge Sculpin 151
Longnose Dace 86
Blacknose Dace 34
Bluntnose Minnow 17
Central Stoneroller 17
River Chub 15
American Eel 11
Cutlip Minnow 9
Bluegill 6
Redbreast Sunfish 6
Rosyside Dace 6
Margined Madtom 4
Tessellated Darter 3
Northern Hogsucker 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern Snapping Turtle
Northern Water Snake
Red-Eared Slider

Crayfish:
Orconectes virilis

Exotic Plants:
English Ivy
Japanese Honeysuckle
Japanese Stiltgrass
Lesser Celandine (Fig Buttercup)
Multiflora Rose
Privet
Shrub Honeysuckle
Wineberry
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Cheumatopsyche Net-Spinning Caddisfly 49
Chimarra Fingernet Caddisfly 17
Orthocladius Non-Biting Midges 8
Parametriocnemus Non-Biting Midges 8
Isonychia Slate Drake Mayfly 7
Gammarus Amphipod 7
Hydropsyche Net-Spinning Caddisfly 3
Eukiefferiella Non-Biting Midges 2
Antocha Crane Fly 2
Tipula Crane Fly 2
Macronychus Riffle Beetle 2
Ferrissia Small Air-Breathing Freshwater Limpets 1
Polypedilum Non-Biting Midges 1
Sympotthastia Non-Biting Midges 1
Tvetenia Non-Biting Midges 1
Limonia 1
Microtendipes Non-Biting Midges 1
Dicrotendipes 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.