Abstract

Seasonal variations and quantities of amino acids were determined in nine species of aquatic plants in two eutrophic-alkalitrophic lakes in central Minnesota--Clear Lake and Blue Lake, and relationship of amino acids in the accumulating sediments was studied. Alanine is fairly stable and abundant; cystine, valine, and glutamic acid fairly stable and moderately abundant; arginine and aspartic acid moderately stable and moderately abundant; threonine moderately stable but not abundant; lysine, serine, and histidine fairly unstable but moderately abundant; phenylalanine and tyrosine fairly unstable and not abundant. Amino acids show downward concentration in sediments at shallow depths.

First Page Preview

First page PDF preview
You do not currently have access to this article.