MBSS Site Summary for: PATL-205-X-2009

Site Photos

Located on Tiber Run in the Patapsco River L N Br watershed, 8-digit code: 02130906.
This stream was visited in the spring on 8/18/2009 and again in the summer on 8/18/2009.

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 14/20 (Suboptimal)
Epifaunal Substrate 13/20 (Suboptimal)
Velocity/Depth Diversity 9/20 (Marginal)
Pool Quality
Pool Extent = 62 meters 		7/20 (Marginal)
Riffle Quality
Riffle Extent = 35 meters 		14/20 (Suboptimal)
Shading 95 %
Embeddedness 5 %


Stream Water Quality:
Water temperature 21.3 ° C
Dissolved oxygen (DO) 8.2 mg/L
Conductivity 918 µmho/cm

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 42
American Eel 21
Blue Ridge Sculpin 21
Longnose Dace 12
Redbreast Sunfish 12
Rock Bass 7
Northern Hogsucker 6
White Sucker 5
Common Shiner 2
Bluegill 1
Bluntnose Minnow 1
Creek Chub 1
River Chub 1
Smallmouth Bass 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Northern Two-Lined Salamander

Crayfish:
Orconectes virilis

Exotic Plants:
English Ivy
Garlic Mustard
Japanese Honeysuckle
Japanese Knotweed
Japanese Stiltgrass
Multiflora Rose
Norway Maple
Oriental Bittersweet
Privet
Tree Of Heaven
 

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.