MBSS Site Summary for: LIGU-201-X-2023

Site Photos

Field photo showing stream conditions at site LIGU-201-X-2023_Midpoint_facing_downstream (Opens in a new window) Field photo showing stream conditions at site LIGU-201-X-2023_Midpoint_facing_upstream (Opens in a new window)

Located on LITTLE GUNPOWDER FALLS in the Little Gunpowder Falls watershed, 8-digit code: 02130804.
This stream was visited in the spring on 4/24/2023.

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 Good - 4.0 / 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 11.1 %
Agricultural Land Use 87.2 %
Forested Land Use 1.7 %


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) 7.78
Alkalinity
(acid neutralizing capacity) 		637.1 µeq/L
Dissolved organic carbon (DOC) 2.811 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:
Faxonius virilis

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
CRICOTOPUS Non-Biting Midges 22
PARAMETRIOCNEMUS Non-Biting Midges 19
STENONEMA Flatheaded Mayfly 12
HEMERODROMIA Tiny Fly 10
ISONYCHIA Slate Drake Mayfly 7
TVETENIA Non-Biting Midges 5
RHEOTANYTARSUS Non-Biting Midges 5
DICROTENDIPES Non-Biting Midges 5
ORTHOCLADIUS Non-Biting Midges 5
SIMULIUM Black Fly 5
CLADOTANYTARSUS Non-Biting Midge 4
POTTHASTIA Non-Biting Midges 4
NAIDIDAE Aquatic Worm 3
STICTOCHIRONOMUS Non-Biting Midge 2
ANTOCHA Crane Fly 2
CORYDALUS Dobsonfly 2
EPHEMERELLA Sulphur Mayfly 2
CARDIOCLADIUS Non-Biting Midge 2
TANYTARSUS Non-Biting Midges 2
THIENEMANNIMYIA GROUP Non-Biting Midges 1
POLYPEDILUM Non-Biting Midges 1
NANOCLADIUS Non-Biting Midges 1
PSEPHENUS Water Penny 1
TAENIOPTERYX Winter Stonefly 1
OPTIOSERVUS Riffle Beetle 1
BOYERIA Spotted Darner Dragonfly 1
CHIRONOMUS Non-Biting Midges 1
EURYLOPHELLA Mayfly 1
TELOGANOPSIS Mayfly 1
HYDROPTILIDAE Micro Caddisfly 1
CHEUMATOPSYCHE Net-Spinning Caddisfly 1
HYDROPSYCHE Net-Spinning Caddisfly 1
STENELMIS Beetle 1
DRUNELLA Blue-Winged Olive Mayfly 1
HYDROPSYCHIDAE Common Netspinner Caddisfly 1
DANNELLA 1
FAXONIUS 1
LEUCTRA  Rolled-Winged Stonefly 1
STYGOBROMUS Amphipod 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.