MBSS Site Summary for: PATL-516-X-2016

Site Photos

Field photo showing stream conditions at site PATL-516-X-2016_midpoint looking downstream (Opens in a new window) Field photo showing stream conditions at site PATL-516-X-2016_midpoint looking upstream (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 3/22/2016 and again in the summer on 7/27/2016.

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 - 2.7 / 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 17/20 (Optimal)
Epifaunal Substrate 16/20 (Optimal)
Velocity/Depth Diversity 17/20 (Optimal)
Pool Quality
Pool Extent = 48 meters 		16/20 (Optimal)
Riffle Quality
Riffle Extent = 40 meters 		18/20 (Optimal)
Shading 40 %
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 299
American Eel 130
Swallowtail Shiner 92
Spottail Shiner 77
Common Shiner 68
White Sucker 62
Redbreast Sunfish 50
Cutlip Minnow 44
Bluntnose Minnow 30
Blue Ridge Sculpin 23
Bluegill 23
Rosyface Shiner 20
Central Stoneroller 18
Longnose Dace 17
Margined Madtom 16
Northern Hogsucker 16
Tessellated Darter 12
Green Sunfish 11
Smallmouth Bass 9
Striped Bass 7
Rock Bass 6
Yellow Bullhead 4
Creek Chub 3
Sea Lamprey 3
Banded Killifish 1
Blacknose Dace 1
Yellow Perch 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Water Snake
Pickerel Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Daylily
Garlic Mustard
Japanese Hops
Japanese Knotweed
Japanese Stiltgrass
Multiflora Rose
Oriental Bittersweet
Wavyleaf Basketgrass
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Gammarus Amphipod 30
Orthocladius Non-Biting Midges 25
Hydropsyche Net-Spinning Caddisfly 19
Orthocladiinae Midge 4
Lepidostoma Little Brown Sedge Caddisfly 4
Maccaffertium March Brown And Cahill Mayfly 3
Chimarra Fingernet Caddisfly 3
Eukiefferiella Non-Biting Midges 3
Cheumatopsyche Net-Spinning Caddisfly 2
Teloganopsis Mayfly 2
Hydrobaenus Midge 2
Corbicula Basket Clam 1
Anchytarsus Beetle 1
Stenelmis Beetle 1
Corydalus Dobsonfly 1
Paratanytarsus Non-Biting Midges 1
Stempellinella Non-Biting Midges 1
Sympotthastia Non-Biting Midges 1
Tanytarsus Non-Biting Midges 1
Thienemannimyia Group Non-Biting Midges 1
Trissopelopia Non-Biting Midges 1
Tvetenia Non-Biting Midges 1
Macronychus Riffle Beetle 1
Polycentropus Tube Maker Caddisfly 1
Brillia 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.