Pine Hollow

July 9, 1998; 1:15 p.m.; Partly Sunny, 85 F

Tests

Dissolved Oxygen5 mg/L
Nitrate2.2 mg/L
pH7.2
Turbidity3 NTU
Velocity2.2 m/sec
Temperature18 C

Habitat Assessment

DescriptionVery densly vegetated; wooded upstream and downstream; channel altered by iron tube.
Width1.0 meters
Water AppearanceClear
OdorNone
Attachment Sites 13/20Riffle is as wide as stream but length is less than two times the width; cobble less abundant; boulders and gravel common.
Embeddedness5/20Fine sediment surrounds and fills more than 75% of the living spaces around and in between the gravel, cobble, and boulders.
Shelter For Fish10/20Snags, submerged logs, undercut banks, cobble and large rocks, or other stable habitat are found in over 10-30% of the site.
Channel Alteration8/20Artificial embankments present to some extent on both banks; and 40 to 80% of stream site straightened, dredged, or otherwise altered.
Sediment Deposition5/20Heavy deposits of fine material, increased bar development; more than 50% of the bottom affected; pools almost absent due to substantial sediment deposition.
Channel Flow Status10/20Water fills 25-75% of the available stream channel and/or riffle substrates are mostly exposed.
Bank Vegetative ProtectionLEFT:9/10; RIGHT:9/10More 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:6/10; RIGHT:6/10Moderately stable; infrequent, small areas of erosion mostly healed over.
Riparian Vegetative Zone WidthLEFT:4/10; RIGHT:5/10Width of Riparian Zone 20-35 feet.

Macroinvertebrate Count

order

Sample One

Sample Two

Sample Three

Total
Trichoptera1362948
Gastropoda3003
Amphipoda132015
Ephemeroptera3003
Diptera621624
Coleoptera1045
Hirurdinearae0112
Oligochaeta4329
Odanta3003
Hemiptera1203

TOTAL

471652115


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