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

Site Date Time
Channel Channel Riparian Vegetation Location Crown In-Stream
Width Depth of Riparian Closure Vegetation
(m) (m) Vegetation (%)
70
48th Street east ditch, 20 meters south of 28th Avenue
Wednesday, February 21, 2001 1015 2.5 0.5 thick grasses and shrubs north
of 28th; thick grasses on the
east and thick shrubs on the
west, south of 28th.
Tuesday, May 15, 2001 1035 2.5 0.5 thick grasses and shrubs north
of 28th; thick grasses on the
east and thick shrubs on the
west, south of 28th.
Tuesday, August 21, 2001 935 4.0 1.0 thick grasses and shrubs north
of 28th; thick grasses on the
east and thick shrubs on the
west, south of 28th.
Y 0% ceratophylum
Y 0% ceratophylum
Y 10% ceratophylum and a
thick cover of duckweed
71
27B Avenue north ditch (at ~47th Street R/W), as it curves north to become 28th Avenue
Wednesday, February 21, 2001 1000 3.0 0.4 thick grasses and scirpus on
both banks
Tuesday, May 15, 2001 1045 3.0 0.4 thick grasses and scirpus on
both banks
Tuesday, August 21, 2001 1000 3.5 0.4 thick grasses and scirpus on
both banks
Y 0% potomogeton
Y 5% potomogeton
Y 10% potomogeton and some
duckweed
72
41B Street west ditch, at dyke
Wednesday, February 21, 2001 940 3.0 0.5 thick grasses on both banks,
thick shrub and blackberry on
the south side
Thursday, May 17, 2001 930 3.0 0.5 thick grasses on both banks,
thick shrub and blackberry on
the south side
Tuesday, August 21, 2001 1020 3.0 0.5 thick grasses on both banks,
thick shrub and blackberry on
the south side
Y 0% none
Y 10% none
Y 20% filamentous algae and
some duckweed
73
Chillukthan Slough/46A Street west ditch at gate on south end of 46A Street
Wednesday, February 21, 2001 1040 2.0 0.6 thick grasses on both banks Y 0% some emergent grasses
Tuesday, May 15, 2001 1100 2.0 0.6 thick grasses on both banks Y 40% some emergent grasses
Tuesday, August 21, 2001 830 2.5 1.0 thick grasses on both banks Y 80% some emergent grasses
and a thick cover of
duckweed
Riparian Vegetation = plant species comprising riparian vegetation
Crown Cover = % of wetted channel covered by vegetation
In-Stream Vegetation = emergent and submergent plant species
Location of Riparian Vegetation:
Y= major growth located on critical west or south banks
N= no vegetation or major growth located on east or north banks
Wednesday, June 25, 2003 Page 18 of 27