MBSS Site Summary for: PATL-205-X-2010

Site Photos

Field photo showing stream conditions at site PATL-205-X-2010-1 (Opens in a new window) Field photo showing stream conditions at site PATL-205-X-2010-2 (Opens in a new window)

Located on Tiber Run in the Patapsco River L N Br watershed, 8-digit code: 02130906.
This stream was visited in the spring on 3/10/2010 and again in the summer on 6/8/2010.

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 N R

Land Use

Land use can provide important information for determining stream health.
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Catchment area 2,442 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 42.1 %
Agricultural Land Use 26.6 %
Forested Land Use 31 %


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

Physical Stream Habitat
Instream Habitat 10/20 (Marginal)
Epifaunal Substrate 10/20 (Marginal)
Velocity/Depth Diversity 12/20 (Suboptimal)
Pool Quality
Pool Extent = 64 meters 		11/20 (Suboptimal)
Riffle Quality
Riffle Extent = 40 meters 		11/20 (Suboptimal)
Shading 98 %
Embeddedness 45 %


Stream Water Quality:
pH (lab) 8.14
Alkalinity
(acid neutralizing capacity) 		2108.1 µeq/L
Dissolved organic carbon (DOC) 0.716 mg/L

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 9 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blue Ridge Sculpin 45
Blacknose Dace 30
American Eel 28
Longnose Dace 18
White Sucker 13
Redbreast Sunfish 5
Green Sunfish 4
Northern Hogsucker 3
Creek Chub 2
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Two-Lined Salamander

Crayfish:
Orconectes virilis

Exotic Plants:
English Ivy
Garlic Mustard
Japanese Knotweed
Japanese Stiltgrass
Mile-A-Minute
Multiflora Rose
Norway Maple
Privet
Tree Of Heaven
Wineberry
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Benthic data unavailable.
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.