. Biology of the seas of the Marine biology -- Soviet Union; Hydrology -- Soviet Union. GENERAL CHARACTERISTICS OF FAR EASTERN SEAS 739. Fig. 363a. Fishing regions abundant in commercial pelagic fish of the north- western part of the Pacific Ocean (Rass). 1 Tuna and Cololabis (outlines); 2 Salmon; 3 Herring; 4 Scomber. The catch of Kamchatka crab and marine mammals has increased consider- ably in the last ten years {Table 299). Three biological groups may be distinguished among the commercial fish: transitional, marine pelagic (Salmonidae in their marine period) and the marine bottom-
. Biology of the seas of the Marine biology -- Soviet Union; Hydrology -- Soviet Union. GENERAL CHARACTERISTICS OF FAR EASTERN SEAS 739. Fig. 363a. Fishing regions abundant in commercial pelagic fish of the north- western part of the Pacific Ocean (Rass). 1 Tuna and Cololabis (outlines); 2 Salmon; 3 Herring; 4 Scomber. The catch of Kamchatka crab and marine mammals has increased consider- ably in the last ten years {Table 299). Three biological groups may be distinguished among the commercial fish: transitional, marine pelagic (Salmonidae in their marine period) and the marine bottom-living fish. Far Eastern salmon belongs to the first group; herring, Table 299. Yield of Soviet marine industry in Far Eastern Seas, 10z centners (L. Berdi- chevsky, 1957) Year 1913 1930 1940 1950 1953 1954 Salmonidae 954 1,556 1,148 1,102 2,114 1,250 Herring 67 338 500 1,563 2,003 1,246 Gadidae — 142 112 318 360 440 Pleuronectiformes — — 35 326 484 — Crabs — 242 158 223 290 393 Whales — — 114 530 768 755 Other marine mammals — 13 11 47 38 65 Total 1,072 3,186 3,093 4,752 2,433 5,240. 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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