MBSS Site Summary for: PATL-B04-X-2011

Site Photos

Field photo showing stream conditions at site PATL-B04-X-2011-1 (Opens in a new window) Field photo showing stream conditions at site PATL-B04-X-2011-2 (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 3/28/2011 and again in the summer on 6/10/2011.

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 No data available Cows standing in a stream at a site with high agricultural land use. Cows survey the sampling procedure at this extreme example of a highly agriculturalized site.
Urban Land Use No data available
Agricultural Land Use No data available
Forested Land Use No data available


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

Physical Stream Habitat
Instream Habitat not sampled
Epifaunal Substrate not sampled
Velocity/Depth Diversity not sampled
Pool Quality not sampled
Riffle Quality not sampled
Shading not sampled
Embeddedness not sampled


Stream Water Quality:
pH (lab) 7.97
Alkalinity
(acid neutralizing capacity) 		871.2 µeq/L
Dissolved organic carbon (DOC) 1.7851 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:
Fish data is unavailable or no fish observed.

Amphibians and Reptiles:
No amphibians and reptiles noted.

Crayfish:
No crayfish noted.

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Orthocladius Non-Biting Midges 39
Hydrobaenus Midge 13
Clinocera Aquatic Dance Fly 7
Stenelmis Beetle 7
Maccaffertium March Brown And Cahill Mayfly 5
Strophopteryx Early Brown Stonefly 4
Gammarus Amphipod 4
Chimarra Fingernet Caddisfly 4
Hydropsyche Net-Spinning Caddisfly 4
Orthocladiinae Midge 3
Cheumatopsyche Net-Spinning Caddisfly 3
Rheotanytarsus Non-Biting Midges 3
Psephenus Water Penny 3
Sympotthastia Non-Biting Midges 2
Microtendipes Non-Biting Midges 2
Tanytarsus Non-Biting Midges 1
Thienemanniella Non-Biting Midges 1
Optioservus Riffle Beetle 1
Hemerodromia Tiny Fly 1
Leptoxis Freshwater Snail 1
Stagnicola Air Breathing Freshwater Snail 1
Robackia European Non-Biting Midge 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.