A twelve-month phytoplankton study was conducted in Lake Drummond and Washington and Jericho Ditches from December 1988 to November 1989. Four dominant phytoplankton groups were identified at these sites. These were the Bacillariophyceae, Cyanophyceae, Cryptophyceae and an autotrophic picoplankton component. Over the past 20 years there has been a decrease in the mean pH levels of Lake Drummond and the replacement of one its former major components, the Chlorophyceae, by the Cyanophyceae. Based on water quality analysis results and species diversity indices, Lake Drummond is classified as in an early eutrophic stage of development.
© 1993 Southern Appalachian Botanical Society
Included with the kind written permission of the publishers.
Original Publication Citation
Phillips, C. G., & Marshall, H. G. (1993). Phytoplankton relationships to water quality in Lake Drummond and two drainage ditches. Castanea, 58(1), 18-33. https://www.jstor.org/stable/4033794
Phillips, Christine G. and Marshall, Harold G., "Phytoplankton Relationships to Water Quality in Lake Drummond and Two Drainage Ditches" (1993). Biological Sciences Faculty Publications. 515.