MBSS Site Summary for: ATKI-121-R-2023

Site Photos

Field photo showing stream conditions at site ATKI-121-R-2023_Midpoint_facing_downstream (Opens in a new window) Field photo showing stream conditions at site ATKI-121-R-2023_Midpoint_facing_upstream (Opens in a new window)

Located on UNNAMED TRIBUTARY TO EAST BRANCH WINTERS RUN in the Atkisson Reservoir watershed, 8-digit code: 02130703.
This stream was visited in the spring on 3/15/2023 and again in the summer on 6/6/2023.

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 Poor - 2.3 / 5.0
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 1.5 %
Agricultural Land Use 69 %
Forested Land Use 29.6 %


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

Physical Stream Habitat
Instream Habitat 13/20 (Suboptimal)
Epifaunal Substrate 14/20 (Suboptimal)
Velocity/Depth Diversity 8/20 (Marginal)
Pool Quality
Pool Extent = 50 meters 		9/20 (Marginal)
Riffle Quality
Riffle Extent = 25 meters 		11/20 (Suboptimal)
Shading 70 %
Embeddedness 30 %


Stream Water Quality:
Water temperature 15.5 ° C
Dissolved oxygen (DO) 7.28 mg/L
pH (lab) 7.44
Alkalinity
(acid neutralizing capacity) 		482.8 µeq/L
Dissolved organic carbon (DOC) 1.164 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:
The following 4 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 104
Creek Chub 102
Rosyside Dace 41
Bluegill 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Gray Treefrog
Northern Green Frog

Crayfish:
Faxonius virilis

Exotic Plants:
Japanese Barberry
Japanese Honeysuckle
Japanese Stiltgrass
Multiflora Rose
Oriental Bittersweet
Wineberry
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
STENONEMA Flatheaded Mayfly 13
THIENEMANNIMYIA GROUP Non-Biting Midges 13
ORTHOCLADIUS Non-Biting Midges 13
CHIMARRA Fingernet Caddisfly 9
CHEUMATOPSYCHE Net-Spinning Caddisfly 8
CRICOTOPUS Non-Biting Midges 6
SYMPOTTHASTIA Non-Biting Midges 6
TRISSOPELOPIA Non-Biting Midges 6
PARAMETRIOCNEMUS Non-Biting Midges 5
ANTOCHA Crane Fly 4
STEGOPTERNA Black Fly 4
DIAMESA Bloodworm 4
PROSIMULIUM Black Fly 3
DIPLECTRONA Net-Spinning Caddisfly 3
ZAVRELIMYIA Non-Biting Midges 3
HYDROPSYCHE Net-Spinning Caddisfly 2
PSILOTRETA Mortarjoint Casemaker Caddisfly 2
PSEUDOLIMNOPHILA Crane Fly 2
TIPULA Crane Fly 1
HEPTAGENIIDAE Flathead Mayfly 1
SIMULIUM Black Fly 1
BAETIS Blue-Winged Olive Mayfly 1
LYPE Net Tube Caddisfly 1
PTERONARCYS Giant Stonefly 1
EURYLOPHELLA Mayfly 1
STENELMIS Beetle 1
OULIMNIUS Riffle Beetle 1
ISOTOMIDAE Springtail 1
LUMBRICULIDAE Worm 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.