MBSS Site Summary for: STCL-112-R-2002

Site Photos

Field photo showing stream conditions at site STCL-112-R-2002-401 (Opens in a new window) Field photo showing stream conditions at site STCL-112-R-2002-402 (Opens in a new window) Field photo showing stream conditions at site STCL-112-R-2002-403 (Opens in a new window)

Located on TOMAKOKIN CR UT in the St. Clements Bay watershed, 8-digit code: 02140105.
This stream was visited in the spring on 3/13/2002 and again in the summer on 6/26/2002.

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 - 2.0 / 5.0
Benthic IBI Good - 5.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 99 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0 %
Agricultural Land Use 21 %
Forested Land Use 78 %


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 15/20 (Suboptimal)
Velocity/Depth Diversity 5/20 (Poor)
Pool Quality
Pool Extent = 59 meters 		10/20 (Marginal)
Riffle Quality
Riffle Extent = 16 meters 		6/20 (Marginal)
Shading 98 %
Embeddedness 40 %


Stream Water Quality:
Water temperature 21.1 ° C
Dissolved oxygen (DO) 5.4 mg/L
pH (lab) 6.31
Conductivity 40 µmho/cm
Alkalinity
(acid neutralizing capacity) 		87.8 µeq/L
Dissolved organic carbon (DOC) 4.8 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 3 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 83
Eastern Mudminnow 50
American Eel 3
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern American Toad
Fowler's Toad
Gray Treefrog
Northern Green Frog
Northern Spring Peeper
Northern Two-Lined Salamander
Pickerel Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Stiltgrass
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Acerpenna Tiny Blue-Winged Olive Mayflies 16
Oulimnius Riffle Beetle 9
Diplectrona Net-Spinning Caddisfly 9
Leuctra  Rolled-Winged Stonefly 8
Chimarra Fingernet Caddisfly 6
Tanytarsus Non-Biting Midges 6
Psephenus Water Penny 4
Simulium Black Fly 4
Chloroperlidae Green Stonefly 4
Conchapelopia Non-Biting Midges 4
Anchytarsus Beetle 3
Polypedilum Non-Biting Midges 3
Trissopelopia Non-Biting Midges 2
Leptophlebiidae Pronggilled Mayfly 2
Probezzia Biting Midges 2
Heptageniidae Flathead Mayfly 1
Tabanus Biting Horsefly 1
Crangonyx Amphipod 1
Synurella Amphipod 1
Corynoneura Non-Biting Midges 1
Eukiefferiella Non-Biting Midges 1
Parametriocnemus Non-Biting Midges 1
Clioperla Green-Winged Stonefly 1
Eurylophella Mayfly 1
Dolophilodes Medium Evening Sedge Caddisfly 1
Nigronia Megaloptera (Dark Fishfly) 1
Hydropsyche Net-Spinning Caddisfly 1
Eccoptura Yellow Stone Stonefly 1
Cordulegaster Spiketail Dragonfly 1
Ephemerella Sulphur Mayfly 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.