. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. 2i6 DISCOVERY REPORTS period of poor standing crop in these latitudes. It is interesting in this respect, however, to note that King & Hida (1954, p. 49) remark upon similar latitudinal variations in range of data from the Pacific. As previously stated, it has been necessary to combine results from all sectors of the Southern Ocean in order to get sufficient observations in all latitudes. The hydrology of the area is such that WINTER (MAY-OCTOBER) IOOO-0 M. 29 O 26S TEMPERATURE GROUP Fig. 12
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. 2i6 DISCOVERY REPORTS period of poor standing crop in these latitudes. It is interesting in this respect, however, to note that King & Hida (1954, p. 49) remark upon similar latitudinal variations in range of data from the Pacific. As previously stated, it has been necessary to combine results from all sectors of the Southern Ocean in order to get sufficient observations in all latitudes. The hydrology of the area is such that WINTER (MAY-OCTOBER) IOOO-0 M. 29 O 26S TEMPERATURE GROUP Fig. 12. Comparison of the mean quantities of zooplankton between arbitrary temperature limits in winter and summer. Results are given for the 100-0 m. horizon and for the whole water column sampled (1000-0 m). The temperature is the mean at each station for the 100-0 m. horizon. Numbers of observations are given in Table 6. latitude is not a very realistic scale on which to compare volumes, since the position of the Antarctic Convergence—which is for many planktonic species a major influence upon their distribution— varies in such a manner that two stations in the same latitude but in different longitudes may be in quite different water masses or temperature zones. Thus in the meridian of 8o° W St. 989 is 6o° 38-6' S, while in the meridian of o° St. 2320 is 61° io-6' S; both are in the same approximate latitude, but the former is sub-Antarctic with a surface temperature of 3-43° C, while the latter is Antarctic with. 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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