8132

• UCREFRP Catalog Number: 8132
• Author: Lieberman, D. and T. Burke.
• Title: Limnology and Drift of Particulate Organic Matter Through the Lower Colorado River.
• USFW Year: 1991.
• USFW - Doc Type: Denver, CO.
• Copyright Material: NO

CONTENTS - Continued
Table Page
29A The concentration of phytoplankton and zooplankton (>505-µm size-fraction) at Headgate
for phases 1 and 2 (Jan. 1987 to June 1987) .......................................... 63
30A The concentration of phytoplankton and zooplankton (>505-µm size-fraction) at Pal Verde
Diversion Dam for phases 1 and 2 (Jan. 1987 to June 1987) ............................ 64
31A The concentration of phytoplankton and zooplankton (>505-µm size-fraction) at Cibola
for phases 1 and 2 (Jan. 1987 to June 1987) .......................................... 65
32A The concentration of phytoplankton and zooplankton (>505-µm size-fraction) at Imperial
Dam for phases 1 and 2 (Jan. 1987 to June 1987) ..................................... 66
33A The concentration of phytoplankton and zooplankton (>505-µm size-fraction) at Yuma
for phases 1 and 2 (Jan. 1987 to June 1987) .......................................... 67
34A Concentration of zooplankton at Davis Dam for phases 1 and 2 (Oct. 1986 to Aug. 1988) ..... 68
35A Concentration of zooplankton at Park Moabi for phases 1 and 2 (.Oct. 1986 to Aug. 1988) .... 68
36A Concentration of zooplankton at Parker Dam for phases 1 and 2 (Oct. 1986 to Aug. 1988) .... 69
37A Concentration of zooplankton at Headgate Rock Dam for phase 1 (Oct. 1986 to Aug. 1988) ... 69
38A Concentration of zooplankton at Palo Verde Diversion Dam for phases 1 and 2 (Oct. 1986
to Aug. 1988) ....................................................................... 70
39A Concentration of zooplankton at Cibola for phases 1 and 2 (Oct. 1986 to Aug. 1988) ......... 70
40A Concentration of zooplankton at Imperial Dam for phases 1 and 2 (Oct. 1986 to Aug. 1988)... 71
41 A Concentration of zooplankton at Yuma for phases 1 and 2 (Oct. 1986 to Aug. 1988) ......... 71
42A Concentration of POM for >505-µm size-fraction (g/m3) for all stations duirng phase 1 ...... 72
43A Dry weight for >505-µm size-fraction (g/m3) for all stations during phase 1 ................. 72
44A The >25-µm size-fraction of dry weight (g/m3) for all stations during phases 1 and 2 ........ 73
45A The >25-µm size-fraction of POM (g/m3) for all stations during phases 1 and 2 .............. 74
46A The <25-µm size-fraction of dry weight (g/m3) for all stations during phases 1 and 2 ........ 75
47A The <25-µm size-fraction of POM (g/m3) for all stations during phases 1 and 2 ............. 76
48A Total POM (g/m3) for all stations during phases 1 and 2 ................................... 77
49A Toatl dry weight (g/m3) for all stations during phases 1 and 2 .............................. 78
50A Total dry weight (g/m3), total ash weight (g/m3), and total POM (g/m3) for all stations
during phases 1 and 2 ................................................................ 79
FIGURES
Figure
1 Lower Colorado River divided into 10 operational divisions; all stations are included for
phases 1 and 2 ....................................................................... 2
2 Mean weekly river flows at Davis Dam, Parker Dam, Palo Verde Diversion Dam, Imperial
Dam, and Yuma for phases 1 and 2 (Oct. 1986 to Aug. 1988) ............................ 5
3 Total chlorophyll a concentrations at Davis Dam, Palo Verde Diversion Dam,
Imperial Dam, and Yuma during phase 1 (Oct. 1986 to June 1987) ........................ 8
4 The <25-µm, 25- to 505-µm, and >505-µm size-fractions of POM during phase 1 at all
sampling stations (Oct. 1986 to June 1987) ............................................ 12
5 Composition of dry weight during phase 1 at all sampling stations .......................... 16
6 Composition of dry weight during phase 2 at all sampling stations .......................... 16
7 Percent POM in total particulate matter during phase 2 at all sampling stations .............. 17
8 Concentration of POM during phase 2 at all sampling stations .............................. 17
9 Concentration of total inorganic matter below reservoirs during phase 2 (Jan. to Aug. 1988) 17
10 Concentration of total POM below reservoirs during phase 2 (Jan. to Aug. 1988) ............ 17
11 Concentration of total inorganic matter above and below backwater complexes during
phase 2(Jan.to Aug. 1988) .......................................................... 19
12 Concentration of total POM above and below backwater complexes during phase•2 (Jan.

13 to Aug. 1988) .......................................................................
Concentration of chlorophyll a above and below backwater complexes during phase 2 19
(Jan. to Aug. 1988) .................................................................. 19
14 Number of zooplankton taxa collected in each major group during phase 2 (Jan. through

15 Aug. 1988) .........................................................................
Concentration of POM at Cibola, in Palo Verde Irrigation Drain, and at DR3 during phase 2 20
(Jan. through Aug. 1988) ............................................................. 21