. Biology of the seas of the Marine biology -- Soviet Union; Hydrology -- Soviet Union. 828 BIOLOGY OF THE SEAS OF THE Table 325. Two types of distribution of nutrient salts in the northern shallows of the Bering Sea (V. Mokievskaya, 1956) First type (Kamchatk i coast) Second type (Bay of Anady r in summer) Depth, Phosphorus Depth Phosphorus m mg/m3 Si02, mg/m3 m mg/m3 Si02, mg/m3 0 19-2 530 0 8-0 305 10 18-0 530 10 7-1 275 25 18-8 500 24 8-3 305 51 18-8 460 34 660 1,950 62 18-8 420 38 680 2,070 48 700 2,430 71 76-0 2,700 Plankton One hundred and sixty-three phytoplankton form
. Biology of the seas of the Marine biology -- Soviet Union; Hydrology -- Soviet Union. 828 BIOLOGY OF THE SEAS OF THE Table 325. Two types of distribution of nutrient salts in the northern shallows of the Bering Sea (V. Mokievskaya, 1956) First type (Kamchatk i coast) Second type (Bay of Anady r in summer) Depth, Phosphorus Depth Phosphorus m mg/m3 Si02, mg/m3 m mg/m3 Si02, mg/m3 0 19-2 530 0 8-0 305 10 18-0 530 10 7-1 275 25 18-8 500 24 8-3 305 51 18-8 460 34 660 1,950 62 18-8 420 38 680 2,070 48 700 2,430 71 76-0 2,700 Plankton One hundred and sixty-three phytoplankton forms have been recorded in the northern part of the Bering Sea and in the Chukotsk Sea: Flagellata 2, Peri- dinea 55, Diatomaceae 104, Chlorophyceae 2 (I. Kisselev, 1937). Boreal peridineans are predominant even in the Bay of Anadyr in summer (Peri- dinium thorianum, P. pallidum, P. depressum, P. ovatum, P. pellucidum, P. granii, Dinophvsis acuta, Ceratium pentagonum and others). Only a few dia- toms develop in large numbers {Chaetoceros concavicomis, Ch. debilis, Ch. radicans, Rhizosolenia hebetata and others). At a depth of 20 to 30 m the. Fig. 419. Limit of zones of cold water (/) and thermophilic fauna (//) in northern part of the Bering 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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