MBSS Site Summary for: LIGU-217-X-2023

Site Photos

Field photo showing stream conditions at site LIGU-217-X-2023_Midpoint_facing_downstream (Opens in a new window) Field photo showing stream conditions at site LIGU-217-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 Poor - 1.7 / 5.0

Land Use

Land use can provide important information for determining stream health.
(Hint: Screen readers will announce definitions; mouse users can hover over dotted text.)
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 8 %
Agricultural Land Use 57.8 %
Forested Land Use 32.9 %


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) 7.73
Alkalinity
(acid neutralizing capacity) 		582.8 µeq/L
Dissolved organic carbon (DOC) 2.42 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:
Northern Green Frog
Northern Two-Lined Salamander

Crayfish:
None observed

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
PARAMETRIOCNEMUS Non-Biting Midges 15
STICTOCHIRONOMUS Non-Biting Midge 10
CRICOTOPUS Non-Biting Midges 8
DICROTENDIPES Non-Biting Midges 8
TANYTARSUS Non-Biting Midges 8
ORTHOCLADIUS Non-Biting Midges 7
CHIRONOMUS Non-Biting Midges 7
PARAKIEFFERIELLA European Non-Biting Midge 6
HYDROBAENUS Midge 6
ORTHOCLADIINAE Midge 5
MICROPSECTRA Non-Biting Midges 4
POLYPEDILUM Non-Biting Midges 4
PSECTROCLADIUS Non-Biting Midge 3
CLADOTANYTARSUS Non-Biting Midge 3
SIMULIUM Black Fly 2
HYDROPTILA Microcaddisfly 2
RHEOCRICOTOPUS Non-Biting Midges 2
DIPTERA True Fly 2
THIENEMANNIELLA Non-Biting Midges 1
AGABUS Predatory Aquatic Beetle 1
CORYNONEURA Non-Biting Midges 1
NANOCLADIUS Non-Biting Midges 1
TRICHOCLINOCERA 1
SMITTIA European Non-Biting Midge 1
EURYLOPHELLA Mayfly 1
PROCLADIUS Non-Biting Midge 1
PSYCHODIDAE Moth Fly 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.