Phytoplankton Water Quality Relationships in U.S. Lakes. Part VI: The Common Phytoplankton Genera From Eastern and Southeastern Lakes

摘要

This report analyzes and compares environmental conditions associated with the 57 most common genera of phytoplankton encountered in the National Eutrophication Survey of 250 lakes in 17 eastern and southeastern States during 1973. Among the findings of this study are: (1) There is an extensive overlap of seasonal preference for most genera, (2) the wide ranges in environmental conditions for most genera effectively eliminate all of the 57 genera as strong, stand-alone indicator organisms, and (3) environmental trends were reflected in mean parameter values in such a way that a nutrient-rich group of genera and a nutrient-poor group of genera resulted. The development of biological water quality indices based on the last finding is discussed.