MBSS Site Summary for: PATL-516-X-2014

Site Photos

Field photo showing stream conditions at site PATL-516-X-2014-1 (Opens in a new window) Field photo showing stream conditions at site PATL-516-X-2014-2 (Opens in a new window)

Located on PATAPSCO RIVER in the Patapsco River L N Br watershed, 8-digit code: 02130906.
This stream was visited in the spring on 4/19/2014 and again in the summer on 8/22/2014.

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 194,092 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 21.2 %
Agricultural Land Use 37.3 %
Forested Land Use 37.7 %


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

Physical Stream Habitat
Instream Habitat 18/20 (Optimal)
Epifaunal Substrate 15/20 (Suboptimal)
Velocity/Depth Diversity 17/20 (Optimal)
Pool Quality
Pool Extent = 12 meters 		15/20 (Suboptimal)
Riffle Quality
Riffle Extent = 75 meters 		17/20 (Optimal)
Shading 20 %
Embeddedness 30 %
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 27 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
River Chub 425
American Eel 220
Satinfin Shiner 141
White Sucker 74
Spotfin Shiner 71
Redbreast Sunfish 68
Bluegill 34
Swallowtail Shiner 33
Longnose Dace 31
Cutlip Minnow 30
Northern Hogsucker 23
Common Shiner 21
Rosyface Shiner 21
Smallmouth Bass 19
Spottail Shiner 19
Central Stoneroller 18
Green Sunfish 16
Tessellated Darter 16
Blue Ridge Sculpin 5
Rock Bass 5
Margined Madtom 4
Striped Bass 3
Bluntnose Minnow 1
Fallfish 1
Largemouth Bass 1
Lepomis Hybrid 1
White Perch 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
No amphibians and reptiles noted.

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Japanese Stiltgrass
Multiflora Rose
Oriental Bittersweet
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Cheumatopsyche Net-Spinning Caddisfly 30
Orthocladius Non-Biting Midges 25
Hydropsyche Net-Spinning Caddisfly 17
Chimarra Fingernet Caddisfly 8
Gammarus Amphipod 7
Hydrobaenus Midge 6
Tvetenia Non-Biting Midges 6
Strophopteryx Early Brown Stonefly 3
Tanytarsini Non-Biting Midges 3
Glossosoma Little Black Caddisfly 2
Clinocera Aquatic Dance Fly 2
Stenelmis Beetle 2
Antocha Crane Fly 2
Maccaffertium March Brown And Cahill Mayfly 1
Micrasema 1
Optioservus Riffle Beetle 1
Hemerodromia Tiny Fly 1
Taeniopteryx Winter Stonefly 1
Orthocladiinae Midge 1
Nematoda Nematode 1
Eukiefferiella 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.