Thesis - Open Access
Master of Science (MS)
Wildlife and Fisheries Science
Phytoplankton populations in Enemy Swim Lake were observed to be quite different. Although these lakes lie within the same geographic area (Coteau des Prairies), major differences in water quality were recorded. The differences in water quality were reflected in the phytoplankton populations and appeared to be influenced by the agricultural practices on the watersheds. Enemy Swim Lake was basically a diatom lake while Lake Herman contained mostly blue-green algae. Genera of algae found in Enemy Swim Lake were: Anabaena, Aphanizomenon, Lyngbya, Pediastrum, Staurastrum, Dinobyron, Asterionella, Fragilaria, Melosira, Stephanodiscus, and Ceratium. All of the above genera occurred in Lake Herman except Lyngbya, Staurastrum, Dinobyron, and Melosira. Surirella was the only genus found exclusively in Lake Herman. Numbers of phytoplankton in Enemy Swim were lower and subject to less variation than those in Lake Herman. The highest total standing crop recorded in Enemy Swim was less than 150,00/liter while Lake Herman had levels over 3,000,000/liter.
Library of Congress Subject Headings
Lake Herman (S.D.)
Enemy Swim Lake (S.D.)
Includes bibliographical references (pages 60-62)
Number of Pages
South Dakota State University
Hauber, Alan B., "Phytoplankton Dynamics of Two Northern Prairie Lakes and Possible Relations to Dissolved Nutrients" (1971). Theses and Dissertations. 125.