Diatoms of Low - Alkalinity Lakes in the Northeastern United States. 2000. (Ac. Nat. Sc. Philadelphia, Spec. Publ. 18). 37 plates. 152 p. Hardcover.

Contains photomicrographs and ecological data for diatom taxa found in sediment samples collected from 166 lakes in Adirondack Park,northern New York. Because many of these diatom taxa are relatively widespread, however, the taxonomic and ecological information is applicable to low - alkalinity lakes throughout the northeastern United States and southeastern Canada. There are 37 plates with 887 light and 12 SEM photographs depicting 292 of the 405 taxa found in the samples. Thirteen taxa are described as new in addition to one new combination. Tables present data on lake location, morphometry, and water chemistry characteristics. In addition, for the 207 taxa which occurred in samples from five or more lakes, ecological optima and olerance are presented for pH, acid neutralizing capacity, total aluminium, dissolved organic carbon, and total phosphorus. Provides also taxonomic guidance and ecological data for future studies of low-alkalinity lakes.