. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. SYLVIA HILL ORANGE R. SURVEY I —1 1 r 10° 15° EAST Fig. 81. Distribution of Chaetoceros, survey I, March 1950 (Station numbers are shown in Fig. 1.) 20°-J 25°. O U T H 30: MO WE POINT oosn ios-io6r~i io^io7p io^o8l IVALVIS BAY IO°. OMNGE SURVEY: II EAST Fig. 82. Distribution of Chaetoceros, survey II, September- October 1950. (Station numbers are shown in Fig. 2.) Special distributional features It is hoped that the following figures are fairly illustrative of the main distributional trends, sum
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. SYLVIA HILL ORANGE R. SURVEY I —1 1 r 10° 15° EAST Fig. 81. Distribution of Chaetoceros, survey I, March 1950 (Station numbers are shown in Fig. 1.) 20°-J 25°. O U T H 30: MO WE POINT oosn ios-io6r~i io^io7p io^o8l IVALVIS BAY IO°. OMNGE SURVEY: II EAST Fig. 82. Distribution of Chaetoceros, survey II, September- October 1950. (Station numbers are shown in Fig. 2.) Special distributional features It is hoped that the following figures are fairly illustrative of the main distributional trends, sum- marizing the features described in discussing group distributions, and giving examples of the most marked divergences from typical group pattern shown by certain individual species. Most of them are based upon estimated numbers per net haul, contoured logarithmically. Percentage of total diatoms has been used as the criterion for certain categories whose great relative importance in the scanty offshore plankton could not be shown by consideration of their numbers alone. This need arises from their cosmopolitan tendencies permitting them to attain equal or even greater abundance 16-2. 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 Institute of Oceanographic Sciences (Great Britain); National Institute of Oceanography of Great Britain; Great Britain. Colonial Office. Discovery Committee. London ; New York : Cambridge University Press
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