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. 1968 Mar 29;159(3822):1463-4.
doi: 10.1126/science.159.3822.1463.

Amino acid flux in an estuary

J E Hobbie, C C Crawford, K L Webb

Amino acid flux in an estuary

J E Hobbie et al. Science. .

Abstract

Dissolved organic matter in York River estuary included 38 micrograms of free amino acids per liter. The highest concentrations were of glycine, serine, and ornithine. Of the 14 amino acids studied for uptake by planktonic bacteria, glycine, methionine, and serine had the greatest flux rates. The total amino acid flux represented from 1 to 10 percent of the daily photosynthetic carbon fixation.

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