. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. 00 04 08 12 16 20 00 04 08. 00 04 08 12 16 20 00 04 08 PRIMN0 MACR0PA T V ? 2-0 10 00 04 08 12 16 20 00 04 06 Fig. 20. Diurnal variations of macroplankton species (see legend to Fig. 18). missible to refer here and there to the results of St. 461 in so far as they apply to the results shown in the table on p. 95. There is also a line of stations (618-25) at which the net was hauled twice a day at about 10 and 10 through a region of uniform plankton, and these constitute a useful piece
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. 00 04 08 12 16 20 00 04 08. 00 04 08 12 16 20 00 04 08 PRIMN0 MACR0PA T V ? 2-0 10 00 04 08 12 16 20 00 04 06 Fig. 20. Diurnal variations of macroplankton species (see legend to Fig. 18). missible to refer here and there to the results of St. 461 in so far as they apply to the results shown in the table on p. 95. There is also a line of stations (618-25) at which the net was hauled twice a day at about 10 and 10 through a region of uniform plankton, and these constitute a useful piece of independent evidence. Diphyes antarctica (Fig. 20). The material is limited, but it is enough to show that there is no significant variation. Specimens taken at St. 461 show no apparent vertical migration. Dimophyes arctica (Fig. 20). The curve for this species is unreliable, not so much be- cause the species is uncommon north of 6o° S as because it occurs in sharply fluctuating numbers. Thus the peak at 0400 is due to only two stations at which the species appeared in larger numbers than usual. The instances of its occurrence are quite evenly distributed. 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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