. Bulletin - United States National Museum. Science. BATHYPELAGIC SQUID BATHYTEUTHIS 123. Figure 31.—Vertical section, 115°W, 55°-70°S; temperature °C, oxygen concentration ml/L. Capture points of Bathyteuthis abyssicola. A huge area of high salinity water, characteristic of the Antarctic Circumpolar Water Mass, lies below the isohaline that tran- sects the 115°W section from 400 m in the south to 2000 m in the north. The large diagonally oriented core of maximum salinity is outlined by the isohaline that encloses two secondary cores of : a small, shallow core to the sou
. Bulletin - United States National Museum. Science. BATHYPELAGIC SQUID BATHYTEUTHIS 123. Figure 31.—Vertical section, 115°W, 55°-70°S; temperature °C, oxygen concentration ml/L. Capture points of Bathyteuthis abyssicola. A huge area of high salinity water, characteristic of the Antarctic Circumpolar Water Mass, lies below the isohaline that tran- sects the 115°W section from 400 m in the south to 2000 m in the north. The large diagonally oriented core of maximum salinity is outlined by the isohaline that encloses two secondary cores of : a small, shallow core to the south and a large, deep core to the north. The plot for density shows that the sigma-t value of very closely parallels the isohaline (fig. 32). The sigma-t= line lies about 500 m below this. Minimum oxygen values of ml/L occur at 400 m at 68°30'S; between ()5°S and 57°S the oxygen minimum values ( ml/L) occur between 900 and 700 m (fig. 31). At 55°S the oxygen minimum drops to ml/L at 1500 m, and there is a broad layer of low oxygen values. Oxygen concentration increases gradually with depth and isopleths slope into deeper water as they pass northward. Nineteen captures are plotted on the 115°W sections. Ten were taken during Cruise 15, six during Cruise 19, and one each from 321-534 O—69 9. 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 United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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