MBSS Site Summary for: PATL-288-X-2017

Site Photos

Field photo showing stream conditions at site PATL-288-X-2017-MidpointLookingDownstream (Opens in a new window) Field photo showing stream conditions at site PATL-288-X-2017-MidpointLookingUpstream (Opens in a new window)

Located on Deep Run in the Patapsco River L N Br watershed, 8-digit code: 02130906.
This stream was visited in the spring on 3/16/2017 and again in the summer on 8/21/2017.

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 Fair - 3.3 / 5.0
Benthic IBI N R

Land Use

Land use can provide important information for determining stream health.
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Catchment area 1,164 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 72.5 %
Agricultural Land Use 11.2 %
Forested Land Use 14.8 %


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

Physical Stream Habitat
Instream Habitat 8/20 (Marginal)
Epifaunal Substrate 9/20 (Marginal)
Velocity/Depth Diversity 7/20 (Marginal)
Pool Quality
Pool Extent = 25 meters 		4/20 (Poor)
Riffle Quality
Riffle Extent = 50 meters 		12/20 (Suboptimal)
Shading 85 %
Embeddedness 75 %
The embeddedness, a measure of silt on the stream bottom, was 75%. This is relatively high, and may exclude some biota.


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
Blacknose Dace 266
Blue Ridge Sculpin 225
Creek Chub 36
Tessellated Darter 27
Rosyside Dace 25
White Sucker 23
Central Stoneroller 21
Longnose Dace 18
Cutlip Minnow 2
Northern Hogsucker 2
Pumpkinseed 2
American Eel 1
Green Sunfish 1
Swallowtail Shiner 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Northern Green Frog
Northern Two-Lined Salamander

Crayfish:
Orconectes virilis

Exotic Plants:
Japanese Honeysuckle
Lesser Celandine (Fig Buttercup)
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
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.