. Biology of the seas of the Marine biology -- Soviet Union; Hydrology -- Soviet Union. GENERAL CHARACTERISTICS OF FAR EASTERN SEAS 697 there is ice in the northern part of the Tartary Strait. The ice is carried out into the Ocean through the Kuril Straits and along the Kamchatka coast. Large areas of the Okhotsk and Bering Seas are covered with ice for almost eight months. As for the other seas of the , this phenomenon is found only in those off the Siberian coast. The salinity of the Far Eastern Seas (apart from on their littoral and in the mouths of the rivers) does not exh
. Biology of the seas of the Marine biology -- Soviet Union; Hydrology -- Soviet Union. GENERAL CHARACTERISTICS OF FAR EASTERN SEAS 697 there is ice in the northern part of the Tartary Strait. The ice is carried out into the Ocean through the Kuril Straits and along the Kamchatka coast. Large areas of the Okhotsk and Bering Seas are covered with ice for almost eight months. As for the other seas of the , this phenomenon is found only in those off the Siberian coast. The salinity of the Far Eastern Seas (apart from on their littoral and in the mouths of the rivers) does not exhibit pronounced fluctuations (P. Ushakov, 1953), but varies merely within the limits 31 to 33-5%0 (Fig. 331). The surface waters of the northwestern part of the Sea of Okhotsk (the influence of the. Fig. 335. Mean limit of floe-ice from March to June: 1 March; 2 April; 3 May; 4 June (Ushakov, 1953). Amur) and of the Bay of Anadyr (the Anadyr River) have lost some of their salinity. At a depth of 50 m their salinity varies within the limits 32-5 to 33%0 and at a depth of 200 m within those of 33-25 to 33-50%0 (P. Ushakov, 1953). The salinity of the Sea of Japan is somewhat higher; along the western coast the salinity of the surface waters is below 34%0, along the eastern coast it is above 34%0. With depth this difference disappears and the salinity rises to 34-5%0. Vertical changes of temperature, salinity, and the contents of oxygen, phosphorus and silicon over the 'shallows' of the Kuril-Kamchatka trench are shown in Figs. 332 and 333. The oxygen conditions of the Okhotsk and Bering Seas are practically the same as those of the adjacent parts of the Pacific. This is one of their most characteristic peculiarities as 'inlets' of the Pacific. Their oxygen content decreases gradually with depth, reaching only 10 per cent of saturation in the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and
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