. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. MICROPLANKTON 245 absence of further serial observations to the southward, we can but speculate as to the reasons for this reversal of a feature that remained clear throughout the eleven other series of both surveys. We have seen from the hydrological sections that active upwelling was very pronounced on this line of stations. The stations on the continental shelf lay within the very recently upwelled water, perhaps too recent for extensive plankton production to have got under weigh. The two ri
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. MICROPLANKTON 245 absence of further serial observations to the southward, we can but speculate as to the reasons for this reversal of a feature that remained clear throughout the eleven other series of both surveys. We have seen from the hydrological sections that active upwelling was very pronounced on this line of stations. The stations on the continental shelf lay within the very recently upwelled water, perhaps too recent for extensive plankton production to have got under weigh. The two rich stations were beyond the edge, and may be comparable with those showing secondary offshore increase in phytoplankton on the more northerly series of observations. 20- 25°H S 1 o u T _ H 3d- N \ I0° H'ALIIS BAY. 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°. 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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