MBSS Site Summary for: PATL-515-X-2015

Site Photos

Field photo showing stream conditions at site PATL-515-X-2015_midpoint-at-p-looking-downstream (Opens in a new window) Field photo showing stream conditions at site PATL-515-X-2015_midpoint-at-p-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 3/30/2015 and again in the summer on 9/14/2015.

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 N R
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 193,779 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 37.6 %


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

Physical Stream Habitat
Instream Habitat 0/20 (Poor)
Epifaunal Substrate 0/20 (Poor)
Velocity/Depth Diversity 0/20 (Poor)
Pool Quality
Pool Extent = 0 meters 		0/20 (Poor)
Riffle Quality
Riffle Extent = 0 meters 		0/20 (Poor)
Shading 0 %
Embeddedness 0 %
Several measures of instream habitat were considered 'Poor' 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:
Fish data is unavailable or no fish observed.

Amphibians and Reptiles:
No amphibians and reptiles noted.

Crayfish:
No crayfish noted.

Exotic Plants:
Wavyleaf Basketgrass
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Gammarus Amphipod 74
Tubificidae Aquatic Worm 16
Orthocladius Non-Biting Midges 16
Polycentropus Tube Maker Caddisfly 7
Cheumatopsyche Net-Spinning Caddisfly 3
Triaenodes Long-Horned Caddisfly 3
Synorthocladius 2
Hydropsyche Net-Spinning Caddisfly 2
Sympotthastia Non-Biting Midges 2
Ancyronyx Spider Riffle Beetle 2
Boyeria Spotted Darner Dragonfly 1
Tanypodinae Non-Biting Midges 1
Microcylloepus Riffle Beetle 1
Dicrotendipes Non-Biting Midges 1
Paratanytarsus Non-Biting Midges 1
Polypedilum Non-Biting Midges 1
Sialis Alderfly 1
Crangonyx Amphipod 1
Hydrobaenus Midge 1
Stenelmis Beetle 1
Chimarra Fingernet Caddisfly 1
Lepidostoma Little Brown Sedge Caddisfly 1
Psephenus Water Penny 1
Neureclipsis 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.