. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 0 2 3 TIME (sec) K 3. Synchronous recordings of blood pressure in Gnathophausia iuc/ciis in the infra- branchial sinus (upper trace) and the heart (lower trace). These are tracings of the original records which were made on an oscillograph and could not be reproduced properly for publication. minimum diastolic pressure (post-branchial). This value averages about 2 cm HjO pulse pressure. Blood pressure measurements were also made on animals under sustained con- ditions of low oxygen such as occur in the oxygen minimum layer ;


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 0 2 3 TIME (sec) K 3. Synchronous recordings of blood pressure in Gnathophausia iuc/ciis in the infra- branchial sinus (upper trace) and the heart (lower trace). These are tracings of the original records which were made on an oscillograph and could not be reproduced properly for publication. minimum diastolic pressure (post-branchial). This value averages about 2 cm HjO pulse pressure. Blood pressure measurements were also made on animals under sustained con- ditions of low oxygen such as occur in the oxygen minimum layer ; e. g., ml Os/l. Systolic and diastolic heart pressures, averaged for four animals (^.8, , 32 O 24 CM X I E 16- UJ tr en UJ cr 8- 0. X - X - ^ 0 60 120 I8O 240 300 TIME (mm.) 360 420 FIGURE 4. Summary of blood pressure changes occuring in four Gnathophausia ingcns during exposure to low oxygen. Pressures measured in the heart are shown by triangles; upper line. iic; lower line, diastolic. Diamonds show pressure measured in the infrabranchial sinus of two animals. The oxygen concentration during the experiment is shown by the svmhol 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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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology