"Phytoplankton distribution and water quality indices for Lake Mead (Co" by Robert D. Staker, Robert W. Hoshaw et al.
 

Document Type

Article

Publication Date

1974

Publication Title

Journal of Phycology

Volume

10

First page number:

323

Last page number:

331

Abstract

Phytoplankton samples were collected in Lake Mend 6 times from September 1910 to June 1971 for 8 stations at depths of 0. 3, 5, 10, 20, and 30 m. These samples were processed through a Millipore filter apparatus and 79 planktonic algae were identified. Algal divisions represented were Bacillariophyta, 42 species; Chlorophyta, 18 ; Cyanophyta, 9; Chrysophyta, 3; Cryptophyta, 3; Pyrrophyta, 2; and Euglenophyta, 2. Blue-green algae were dominant in late summer and fall; green algae, diatoms, and, cryptomonads in winter; and green algae in spring. The early summer flora was best represented by the Chlorophyta, Cryptophyta, and Chrysophyta. Palmer's pollution-tolerant algae indices and Nygaard's indices were calculated from phytoplankton data. These indices suggest eutropic conditions in Lake Mead, especially for Boulder Basin.

Keywords

Algae; Hydrobiology; Lake Mead (Ariz. and Nev.); Phytoplankton; Water quality

Disciplines

Biochemistry | Environmental Indicators and Impact Assessment | Environmental Microbiology and Microbial Ecology | Environmental Monitoring | Fresh Water Studies | Terrestrial and Aquatic Ecology

Language

English


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