. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FATTY ACID U IT ARE 171 stearic and oleic acid, but the total quantity was only about 8% of that in the extract. The fatty acid compositions of sea water extracts "A" and "B" were so similar that the differences were within the range of experimental error and the two extracts were pooled for the analysis reported. z LU o co 14 CO Z O Q- LO CL: o t— U 12 \ 16 I 18:1. 6 9 12 RETENTION TIME MIN. 15 FIGURE 5. Gas-liquid chromatograph on the EGSS-X column of fatty acid methyl esters prepared from sea water ext
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FATTY ACID U IT ARE 171 stearic and oleic acid, but the total quantity was only about 8% of that in the extract. The fatty acid compositions of sea water extracts "A" and "B" were so similar that the differences were within the range of experimental error and the two extracts were pooled for the analysis reported. z LU o co 14 CO Z O Q- LO CL: o t— U 12 \ 16 I 18:1. 6 9 12 RETENTION TIME MIN. 15 FIGURE 5. Gas-liquid chromatograph on the EGSS-X column of fatty acid methyl esters prepared from sea water extracts "A" and "; The sudden shift in the tracing between the 12- and 14-carbon peaks represents a 3 times increase in detector sensitivity. DISCUSSION Thse studies demonstrate accumulation of dissolved free fatty acids by free- living marine invertebrates. Evidence comes from experiments on (1) the time course of uptake. (2) comparison of uptake rates of dead and live animals, (3) assimilation of labelled fatty acids, (4) net loss of unlabeled fatty acids from the incubation medium. Uptake of C14-labeled fatty acids proceeds linearly with time for at least 2 to 3 hours. An initial spurt of rapid uptake of long chain fatty acids is prob- ably due to adsorption on the surface of the animals. Vavrecka, Poledne and. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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