Provorse Hollow

July 23, 1998; 10:45 a.m.; Sunny, 75 F

Tests

Dissolved Oxygen7 mg/L
Nitrate.176 mg/L
pH7.7
Turbidity8 NTU
Velocity.045 m/sec
Temperature24 C

Habitat Assessment

Descriptionforested downstream, forested on left bank upstream; farm house on right (lawn borders riparian zone); muddy bottom.
Width3.2 meters
Water AppearanceClear
Odornone
Attachment Sites 13/20Riffle is as wide as stream but length is less than 2 times width; cobble less abundant; boulders and gravel common.
Embeddedness8/20Fine sediment surrounds and fills in 50-75% of the living spaces around and in between the gravel, cobble, and boulders.
Shelter For Fish9/20Snags, submerged logs, undercut banks, cobble and large rocks, or other stable habitat are found in 10-30% of the site.
Channel Alteration14/20Some stream straightening, dredging, artificial embankments or dams present, usually in areas of bridge abutments; no evidence of recent channel alteration activity.
Sediment Deposition12/20Some new increase in bar formation, mostly from coarse gravel; 5-30% of the bottom affected; slight deposition in pools.
Channel Flow Status13/20Water fills greater than 75% of the available channel; less than 25% is 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:6/10 Moderately stable; infrequent, small areas of erosion mostly healed over.
Riparian Vegetative Zone WidthLEFT:7/10; RIGHT:7/10Width of Riparian Zone is 35-50 feet.

Macroinvertebrate Count

order

Sample One

Sample Two

Sample Three

Total
Hirudinea174277
Decapoda1427
Hemiptera2406
Pelecypoda1124
Gastropoda103013
Trichoptera106465
Diptera3306
Coleoptera0404
Odonata2226
Megaloptera4004
Ephemeroptera431118
Isopoda6129
Amphipoda0101

TOTAL

3110085220


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