. Biology of the seas of the Marine biology -- Soviet Union; Hydrology -- Soviet Union. Fig. 328a. Diagram of continuous surface currents (summer) (Dobro- volsky, 1948). phenomena. In 1933 this limit passed close to the Kuril Islands; in subse- quent years it moved farther and farther southeast, and in 1953 it had moved away between 200 and 500 miles from its position of twenty years Fig. 328b. Diagram of continuous surface currents (winter) (Dobrovolsky). The Ivasi catastrophe may have been connected, either directly or indirectly, with these fluctuations. A clear picture o
. Biology of the seas of the Marine biology -- Soviet Union; Hydrology -- Soviet Union. Fig. 328a. Diagram of continuous surface currents (summer) (Dobro- volsky, 1948). phenomena. In 1933 this limit passed close to the Kuril Islands; in subse- quent years it moved farther and farther southeast, and in 1953 it had moved away between 200 and 500 miles from its position of twenty years Fig. 328b. Diagram of continuous surface currents (winter) (Dobrovolsky). The Ivasi catastrophe may have been connected, either directly or indirectly, with these fluctuations. A clear picture of the changes of temperature, salinity, oxygen, phosphorus and silica content is given in Figs. 330, 331, 332 and 333. The amplitude of temperature fluctuations becomes less with depth. In the Kuroshio region the amplitude is 13-5° (10-5° to 24°) on the surface; at a depth of 200 m it is 2-5° (9° to 11-5°); at 500 m barely one degree; while at 2x. 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 Zenkevich, L. A. (Lev Aleksandrovich), 1889-1970. New York, Interscience Publishers
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