Misty Valley Creek

July 16, 1998; 2:45 p.m.; Sunny, 90 F

Tests

Dissolved Oxygen5 mg/L
Nitrate.22 mg/L
pH7.7
Turbidity2 NTU
Velocity2.7 m/sec
Temperature19.5 C

Habitat Assessment

DescriptionFields planted with corn surround the stream. Small riparian zone consisting of grasses and a few trees.
Width.9 meters
Water AppearanceClear
Odornone
Attachment Sites 14/20Riffle is as wide as stream but length is less than 2 times width; cobble less abundant; boulders and gravel common.
Embeddedness19/20Fine sediment surrounds and fills in 0-25% of the living spaces around and in between the gravel, cobble, and boulders.
Shelter For Fish8/20Snags, submerged logs, undercut banks, cobble and large rocks, or other stable habitat are found in over 10-30% of the site.
Channel Alteration20/20Stream straightening, dredging, artificial embankments, dams or bridge abutments absent or minimal; stream with meandering pattern.
Sediment Deposition18/20Little or no enlargement of islands or point bars and less than 5% of the bottom affected by sediment deposition.
Channel Flow Status19/20Water reaches bases of both lower banks and minimal amount of channel substrate is exposed.
Bank Vegetative ProtectionLEFT:10/10; RIGHT:10/10More than 90% of the streambank surfaces covered by natural vegetation, including trees, shrubs, or other plants; vegetative disruption, through grazing or mowing, minimal or not evident; almost all plants allowed to grow naturally.
Condition of BanksLEFT:5/10; RIGHT:5/10Moderately unstable; up to 60% of banks in site have areas of erosion; high erosion potential during floods.
Riparian Vegetative Zone WidthLEFT:2/10; RIGHT:2/10LEFT:Width of riparian zone less than 20 feet.

Macroinvertebrate Count

order

Sample One

Sample Two

Sample Three

Total
Trichoptera4433885
Diptera1020737
Coleoptera8182551
Odonata3003
Pelecypoda1001
Hemiptera1001
Oligochaeta74213
Ephemeroptera9241144
Plecoptera1001
Gastropoda1001
Hirudinea0202

TOTAL

4511183239


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