MBSS Site Summary for: PATL-118-R-2000


Located on PATAPSCO R UT3 in the Patapsco River L N Br watershed, 8-digit code: 02130906.
This stream was visited in the spring on 3/7/2000 and again in the summer on 7/12/2000.

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 Fair - 3.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 29 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 13.3 %
Agricultural Land Use 26.7 %
Forested Land Use 60 %


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) 6.81
Alkalinity
(acid neutralizing capacity) 		681.7 µeq/L
Dissolved organic carbon (DOC) 2.4 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
Stegopterna Black Fly 65
Paraphaenocladius Non-Biting Midges 12
Corynoneura Non-Biting Midges 9
Amphinemura Spring Stonefly 8
Prostoia Spring Stonefly 6
Orthocladiinae Midge 6
Cricotopus/Orthocladius Midge 4
Nemouridae Nemourid Stonefly 3
Prosimulium Black Fly 2
Zavrelimyia Non-Biting Midges 2
Parametriocnemus Non-Biting Midges 1
Rheocricotopus Non-Biting Midges 1
Sympotthastia Non-Biting Midges 1
Tanypodinae Non-Biting Midges 1
Zavrelia 1
Neophylax Caddisfly 1
Ameletus Combmouthed Minnow Mayfly 1
Tipulidae Cranefly 1
Chloroperlidae Green Stonefly 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.