MBSS Site Summary for: ATKI-102-R-2004

Site Photos

Field photo showing stream conditions at site ATKI-102-R-2004-1 (Opens in a new window) Field photo showing stream conditions at site ATKI-102-R-2004-2 (Opens in a new window)

Located on BEAR CABIN BR in the Atkisson Reservoir watershed, 8-digit code: 02130703.
This stream was visited in the spring on 3/16/2004 and again in the summer on 7/14/2004.

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 Good - 4.7 / 5.0
Benthic IBI Poor - 2.3 / 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 944 acres 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 15 %
Agricultural Land Use 66 %
Forested Land Use 18 %


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

Physical Stream Habitat
Instream Habitat 14/20 (Suboptimal)
Epifaunal Substrate 11/20 (Suboptimal)
Velocity/Depth Diversity 13/20 (Suboptimal)
Pool Quality
Pool Extent = 49 meters 		14/20 (Suboptimal)
Riffle Quality
Riffle Extent = 26 meters 		12/20 (Suboptimal)
Shading 85 %
Embeddedness 33 %


Stream Water Quality:
Water temperature 18.4 ° C
Dissolved oxygen (DO) 9.1 mg/L
pH (lab) 7.02
Conductivity 178 µmho/cm
Alkalinity
(acid neutralizing capacity) 		334.2 µeq/L
Dissolved organic carbon (DOC) 0.8 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 12 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blue Ridge Sculpin 268
Rosyside Dace 173
Blacknose Dace 161
Creek Chub 150
Bluntnose Minnow 128
Least Brook Lamprey 29
White Sucker 29
Tessellated Darter 9
Common Shiner 4
Fallfish 3
Cutlip Minnow 1
Longnose Dace 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog
Northern Red Salamander
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Japanese Stiltgrass
Mile-A-Minute
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Orthocladius Non-Biting Midges 63
Anchytarsus Beetle 16
Thienemannimyia group Non-Biting Midges 13
Sympotthastia Non-Biting Midges 7
Cheumatopsyche Net-Spinning Caddisfly 5
Parametriocnemus Non-Biting Midges 4
Diamesa Bloodworm 4
Antocha Crane Fly 3
Eukiefferiella Non-Biting Midges 3
Orthocladiinae Midge 3
Hydropsyche Net-Spinning Caddisfly 2
Cardiocladius Non-Biting Midge 2
Micropsectra Non-Biting Midges 2
Pycnopsyche Great Autumn Brown Sedge Caddisfly 2
Rheosmittia Non-Biting Midges 2
Tvetenia Non-Biting Midges 2
Perlodidae Perlodid Stonefly 2
Leptophlebiidae Pronggilled Mayfly 2
Ephemerella Sulphur Mayfly 2
Dicranota Hairy-Eyed Cranefly 1
Dolichopodidae Long-Legged Fly 1
Ceratopogon Biting Midge 1
Tipula Crane Fly 1
Stenonema Flatheaded Mayfly 1
Paraphaenocladius Non-Biting Midges 1
Agarodes 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.