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Delta Fish and Amphibian Study 2000-2003_ DATA ...

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Site Date Time<br />

Channel Channel Riparian Vegetation Location Crown In-Stream<br />

Width Depth of Riparian Closure Vegetation<br />

(m) (m) Vegetation (%)<br />

109<br />

Tilbury Slough south channel, west side of Hopcott Road (72nd Street)<br />

Tuesday, March 26, 2002 1300 20.0 1.0 Weeping willow, Himalayan<br />

blackberry <strong>and</strong> low brush on<br />

slough edge<br />

Wednesday, August 07, 2002 935 10.0 0.3 Weeping willow on both banks,<br />

Himalayan blackberry <strong>and</strong> willow<br />

on north slough edge<br />

Tuesday, February 25, <strong>2003</strong> 940 20.0 0.4 Weeping willow on both banks,<br />

Himalayan blackberry <strong>and</strong> willow<br />

on north slough edge<br />

Y 0% very thick Typha <strong>and</strong><br />

scirpus growth<br />

Y 0% Thick Typha, grasses<br />

<strong>and</strong> P. Loosestrife;<br />

duckweed &<br />

Ceratophyllum<br />

Y 0% very thick Typha <strong>and</strong><br />

scirpus growth<br />

110<br />

Tilbury Slough, west side of Ross Road (76th Street)<br />

Tuesday, March 26, 2002 1350 40.0 2.0 Some large trees, low shrub,<br />

Himalayan blackberry <strong>and</strong> thick<br />

grasses on slough edge<br />

Y 0% very thick Typha growth,<br />

some emergent grasses,<br />

microcystis mats<br />

Wednesday, August 07, 2002 1000 40.0 1.5 Cottonwood <strong>and</strong> alder both sides Y 0% Thick Typha <strong>and</strong><br />

arrowhead, some P.<br />

Loosestrife; thick elodea<br />

& some duckweed<br />

Tuesday, February 25, <strong>2003</strong> 1000 40.0 2.0 Some large trees, low shrub,<br />

Himalayan blackberry <strong>and</strong> thick<br />

grasses on slough edge<br />

Y 0% very thick Typha growth,<br />

some emergent grasses,<br />

111<br />

Tilbury Slough, east side of Ross Road (76th Street)<br />

Tuesday, March 26, 2002 1407 30.0 1.5 Some low shrub <strong>and</strong> Himalayan<br />

blackberry<br />

Wednesday, August 07, 2002 1020 40.0 2.0 Some low shrub <strong>and</strong> trees at SW<br />

corner, Himalayan blackberry,<br />

snowberry, scirpus & grasses<br />

Tuesday, February 25, <strong>2003</strong> 1020 40.0 2.0 Some low shrub <strong>and</strong> Himalayan<br />

blackberry<br />

N 0% very thick Typha growth,<br />

microcystis mats<br />

N 0% Thick Typha<br />

N 0% very thick Typha growth,<br />

Riparian Vegetation = plant species comprising riparian vegetation<br />

Crown Cover = % of wetted channel covered by vegetation<br />

In-Stream Vegetation = emergent <strong>and</strong> submergent plant species<br />

Location of Riparian Vegetation:<br />

Y= major growth located on critical west or south banks<br />

N= no vegetation or major growth located on east or north banks<br />

Wednesday, June 25, <strong>2003</strong> Page 2 of 13

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