MBSS Site Summary for: PATL-213-X-2013

Site Photos

Field photo showing stream conditions at site PATL-213-X-2013-1 (Opens in a new window) Field photo showing stream conditions at site PATL-213-X-2013-2 (Opens in a new window)

Located on BRICE RUN in the Patapsco River L N Br watershed, 8-digit code: 02130906.
This stream was visited in the spring on 3/5/2013 and again in the summer on 6/17/2013.

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 - 4.7 / 5.0
Benthic IBI Fair - 3.7 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 6,356 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 15.7 %
Agricultural Land Use 33.7 %
Forested Land Use 48.5 %


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 17/20 (Optimal)
Velocity/Depth Diversity 17/20 (Optimal)
Pool Quality
Pool Extent = 30 meters 		15/20 (Suboptimal)
Riffle Quality
Riffle Extent = 60 meters 		19/20 (Optimal)
Shading 75 %
Embeddedness 0 %
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 18 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blue Ridge Sculpin 139
Rosyside Dace 115
Longnose Dace 104
Blacknose Dace 83
Bluntnose Minnow 80
White Sucker 62
American Eel 44
Central Stoneroller 29
Rock Bass 25
Cutlip Minnow 22
Green Sunfish 15
Tessellated Darter 14
Redbreast Sunfish 10
Yellow Bullhead 7
Bluegill 5
Creek Chub 1
Fallfish 1
Swallowtail Shiner 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Eastern Gartersnake
Northern Green Frog
Pickerel Frog

Crayfish:
Orconectes virilis

Exotic Plants:
Japanese Honeysuckle
Japanese Stiltgrass
Mile-A-Minute
Multiflora Rose
Oriental Bittersweet
Wineberry
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Crangonyx Amphipod 25
Ephemerella Sulphur Mayfly 13
Orthocladius Non-Biting Midges 11
Parametriocnemus Non-Biting Midges 8
Clinocera Aquatic Dance Fly 8
Prostoia Spring Stonefly 8
Strophopteryx Early Brown Stonefly 7
Hydrobaenus Midge 7
Diamesa Bloodworm 6
Gammarus Amphipod 5
Sympotthastia Non-Biting Midges 3
Isonychia Slate Drake Mayfly 2
PERLIDAE Common Stonefly 2
Hydropsyche Net-Spinning Caddisfly 2
Rheocricotopus Non-Biting Midges 2
Maccaffertium March Brown And Cahill Mayfly 2
Eurylophella Mayfly 1
Ablabesmyia Non-Biting Midge 1
Corynoneura Non-Biting Midges 1
Micropsectra Non-Biting Midges 1
Parakiefferiella European Non-Biting Midge 1
Helichus Beetle 1
Centroptilum Small Minnow Mayfly 1
Ancyronyx Spider Riffle Beetle 1
Thienemanniella Non-Biting Midges 1
Oulimnius Riffle Beetle 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.