Delta Fish and Amphibian Study 2000-2003_ DATA ...
Delta Fish and Amphibian Study 2000-2003_ DATA ...
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 />
63<br />
34B Avenue south ditch at Hwy 17 overpass<br />
Thursday, February 15, 2001 1030 2.0 0.3 grasses <strong>and</strong> Typha on both<br />
banks<br />
Thursday, May 10, 2001 955 2.0 0.2 grasses <strong>and</strong> Typha on both<br />
banks<br />
Friday, August 10, 2001 935 2.0 0.0 grasses <strong>and</strong> Typha on both<br />
banks<br />
Y 10% Typha<br />
Y 20% Typha<br />
Y 60% Typha <strong>and</strong> a thick cover<br />
of duckweed<br />
64<br />
57B Street east ditch, half way between <strong>Delta</strong>port Way <strong>and</strong> 34B Avenue<br />
Tuesday, February 20, 2001 920 1.5 0.3 sparse grasses on both banks,<br />
some shrub on the east side<br />
Thursday, May 10, 2001 935 1.5 0.3 sparse grasses on both banks,<br />
some shrub on the east side<br />
Thursday, August 09, 2001 835 1.5 0.3 sparse grasses on both banks,<br />
some shrub on the east side<br />
Y 30% Potomogeton<br />
Y 30% Potomogeton<br />
Y 30% Potomogeton, duckweed<br />
<strong>and</strong> mats of microcystis<br />
65<br />
28th Avenue north ditch, 80 meters west of 57B Street<br />
Tuesday, February 20, 2001 935 2.5 0.6 cropped grass on the south<br />
bank, thick shrub <strong>and</strong> trees on<br />
the north side<br />
Thursday, May 10, 2001 1030 2.5 0.6 cropped grass on the south<br />
bank, thick shrub <strong>and</strong> trees on<br />
the north side<br />
Thursday, August 09, 2001 850 2.5 0.6 cropped grass on the south<br />
bank, thick shrub <strong>and</strong> trees on<br />
the north side<br />
Y 20% some emergent grasses<br />
Y 30% some emergent grasses<br />
Y 50% some emergent grasses,<br />
potomogeton <strong>and</strong> an<br />
extensive cover of<br />
duckweed<br />
66<br />
28th Avenue north ditch, 10 meters west of 56th Street<br />
Tuesday, February 20, 2001 950 1.5 0.3 thick grasses on both banks,<br />
some shrubs on the north side<br />
Thursday, May 10, 2001 1045 1.5 0.4 thick grasses on both banks,<br />
some shrubs on the north side<br />
Thursday, August 09, 2001 905 1.5 0.4 thick grasses on both banks,<br />
some shrubs on the north side<br />
Y 0% some emergent grasses<br />
Y 0% some emergent grasses<br />
Y 10% some emergent grasses,<br />
potomogeton, waterstarwort,<br />
duckweed,<br />
filamentous algae <strong>and</strong><br />
thick mats of microcystis<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 16 of 27