MBSS Site Summary for: PRET-102-R-2000

Site Photos

Field photo showing stream conditions at site PRET-102-R-2000-01 (Opens in a new window) Field photo showing stream conditions at site PRET-102-R-2000-02 (Opens in a new window) Field photo showing stream conditions at site PRET-102-R-2000-03 (Opens in a new window) Field photo showing stream conditions at site PRET-102-R-2000-04 (Opens in a new window)

Located on PRETTYBOY BR UT1 in the Prettyboy Reservoir watershed, 8-digit code: 02130806.
This stream was visited in the spring on 3/3/2000 and again in the summer on 6/13/2000.

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 - 4.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 308 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 0 %
Agricultural Land Use 76.3 %
Forested Land Use 23.4 %


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

Physical Stream Habitat

Instream Habitat 7/20 (Marginal)
Epifaunal Substrate 6/20 (Marginal)
Velocity/Depth Diversity 8/20 (Marginal)
Pool Quality
Pool Extent = 54 meters
8/20 (Marginal)
Riffle Quality
Riffle Extent = 21 meters
11/20 (Suboptimal)
Shading 60 %
Embeddedness 55 %
The embeddedness, a measure of silt on the stream bottom, was 55%. This is relatively high, and may exclude some biota.


Stream Water Quality:

Water temperature 15.6 ° C
Dissolved oxygen (DO) 8.4 mg/L
pH (lab) 7.04
Conductivity 150 µmho/cm
Alkalinity
(acid neutralizing capacity)
253.9 µeq/L
Dissolved organic carbon (DOC) 1.1 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 2 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 424
Creek Chub 165
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:

Eastern Snapping Turtle
Northern Green Frog
Northern Two-Lined Salamander

Crayfish:

No crayfish noted.

Exotic Plants:

Canada Thistle
Japanese Honeysuckle
Mile-A-Minute
Multiflora Rose
 

Benthic Macroinvertebrates:

Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Ephemerella Sulphur Mayfly 18
Tvetenia Non-Biting Midges 11
Conchapelopia Non-Biting Midges 8
Cricotopus/Orthocladius Midge 7
Corynoneura Non-Biting Midges 6
Trissopelopia Non-Biting Midges 6
Eurylophella Mayfly 5
Paraleptophlebia Blue Quill Mayfly 4
Baetidae Small Minnow Mayfly 4
Amphinemura Spring Stonefly 4
Prosimulium Black Fly 3
Pseudolimnophila Crane Fly 3
Heptageniidae Flathead Mayfly 2
Epeorus Mayfly 2
Ptilostomis Giant Casemaker Caddisfly 2
Ceratopogon Biting Midge 2
Ameletus Combmouthed Minnow Mayfly 2
Prostoia Spring Stonefly 2
Oulimnius Riffle Beetle 2
Diplectrona Net-Spinning Caddisfly 2
Hydropsyche Net-Spinning Caddisfly 2
Cheumatopsyche Net-Spinning Caddisfly 1
Tanytarsini Non-Biting Midges 1
Thienemanniella Non-Biting Midges 1
Polycentropodidae Trupetnet And Tubemaking Caddisfly 1
Antocha Crane Fly 1
Hexatoma Crane Fly 1
Neophylax Caddisfly 1
Culicoides 1
Stenelmis Beetle 1
Chloroperlidae Green Stonefly 1
Girardia Freshwater Flatworm 1
Tipula Crane Fly 1
Heleniella European Non-Biting Midge 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.