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

Table 26A.-The concentration of phytoplankton and zooplankton (>505-µm size-fraction) at Davis Dam for
phase 1 (Jan. 1987 to June 1987).
Phytoplankton Taxa
Bacillariophyta (diatoms)
Chlorophyta (green algae)
Cyanophyta (blue-green algae)
Pyrrhophyta (dinoflagellates)
Rhodophyta (red algae)
Macrophyta
1/5 2/10 3/17 4/20
p a c va
a p p va
c p
p va
5/18 6/22
a
a
c p
c
p = present (1-100 No./L)
c = common (101-1000 No./L)
a = abundant (1001-6000 No./L)
va = very abundant (>6001 No. /L)
Zooplankton Taxa 1/5 2/10 3/17 4/20 5/18 6/22
Nauplius
Diaptomus spp. p p c
Bosmina sp.
Daphnia spp. va va va va va va
Daphnia eggs va va va c a va
Leptodora kindtii p
Animal Fragments a
p = present (1-5 individuals/L)
c = common (6-15 individuals/L)
a = abundant (16-25 individuals/L)
va = very abundant (>25 individuals/L)
60