Pan Hollow

July 16, 1998; 10:30 a.m.; Sunny, 85 F

Tests

Dissolved Oxygen7 mg/L
Nitrate.44 mg/L
pH7.3
Turbidity13 NTU
Velocity.086 m/sec
Temperature21 C

Habitat Assessment

DescriptionMuch vegetation; many rocks and exposed bedrock; narrow downstream, wider upstream; Wooded upstream, surrounded by praire-like grasses downstream.
Width4.6 meters upstream, .8 meters downstream
Water AppearanceClear
Odornone
Attachment Sites 10/20Run area may be lacking; riffle not as wide as stream and its length is less than 2 times the stream width; gravel or large boulders and bedrock prevalent; some cobble present.
Embeddedness19/20Fine sediment surrounds and fills in 0-25% of the living spaces around and in between the gravel, cobble, and boulders.
Shelter For Fish14/20Snags, submerged logs, undercut banks, cobble and large rocks, or other stable habitat are found in over 30-50% of the site.
Channel Alteration16/20Stream 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 Status14/20Water fills more than 75% of the available channel; less than 25% 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:7/10; RIGHT:7/10Moderately stable; infrequent, small areas of erosion mostly healed over.
Riparian Vegetative Zone WidthLEFT:7/10; RIGHT:7/10LEFT:Width of riparian zone 35-50 feet.

Macroinvertebrate Count

order

Sample One

Sample Two

Sample Three

Total
Trichoptera11553096
Diptera27241263
Coleoptera34512
Odanta1001
Hemiptera1001
Oligochaeta0011
Ephemeroptera26513
Megaloptera0202
Plecoptera2024

TOTAL

479155193


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