. Biology of the seas of the Marine biology -- Soviet Union; Hydrology -- Soviet Union. THE KARA SEA 237 {Calanus finmarchicus, ? hyperboreus, Pseudocalanus elongatus, Microcalanus parvus, Oithona similis) and some salps (Fritillaria borealis and Oikopleura vanhoeffeni and others). The cold-water forms are characteristic of the deep water of the Kara Sea (below the 50 to 100 m layer)—Calanus hyperboreus, Euchaeta glacialis, Metridia longa, Conchaecia borealis, Parathemistq oblivia, Euthemisto libellula, Diphyes arctica and Clione limacina. Of the upper layer of water the following are
. Biology of the seas of the Marine biology -- Soviet Union; Hydrology -- Soviet Union. THE KARA SEA 237 {Calanus finmarchicus, ? hyperboreus, Pseudocalanus elongatus, Microcalanus parvus, Oithona similis) and some salps (Fritillaria borealis and Oikopleura vanhoeffeni and others). The cold-water forms are characteristic of the deep water of the Kara Sea (below the 50 to 100 m layer)—Calanus hyperboreus, Euchaeta glacialis, Metridia longa, Conchaecia borealis, Parathemistq oblivia, Euthemisto libellula, Diphyes arctica and Clione limacina. Of the upper layer of water the following are characteristic: Pseudocalanus elongatus, Oithona similis, Centropages hamatus, Thysanoessa neglecta, Temora longicornis, Acartia longiremis, Oithona plumifera var. atlantica, Microsetella. Fig. 103. Distribution of plankton forms which have penetrated from the north and forms from inland discharge in the Kara Sea (Virketis). norvegica, Oikopleura labradoriensis; among the sea-weeds Halosphaera viridis is the most typical. Most of these forms have arrived from the west. The quantittaively richest form, Calanus finmarchicus, in its mature state, lives in the deepest layers of water, but while young is adapted to the upper zones. The forms of western origin come into the Kara Sea from the Barents Sea, either skirting Novaya Zemlya from the north or through the southern passages. At times only a few penetrate into the Kara Sea (Fig. 103); some- times, however, they go far to the eastward, as far as the passages into the Laptev Sea. The ciliates Salpingella acuminata, Acanthostomella norvegica, Evadne nord- manni, Podon leuckarti, meduse—Rathkea octopunctata, Crustacea—Evadne nordmanni, Podon leuckarti, Centropages hamatus, C. typicus, Temora longi- cornis and Oithona atlantica are included in this group of forms. The third group of cold-water Polar forms, penetrating from the north, is. Please note that these images are extracted from scanned page images that may have been d
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