. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. ~W|i074 WSI073 WSI07 2 WSKD7I. â ⢠TOTAL DIATOMS . « CHAETOCERACEAE , , PENNATAE" ..âââ,.â BIEXXJLPHIINEAE o- o DISCINEAE SOLENIINEAE SO IOO SEA MILES FROM LAND Fig. 78. Estimated total diatoms and diatom group totals, survey II. A. Walvis Bay line, 29 September-2 October 1950. B. Middle Intermediate line, 28 September 1950. high at the second station seawards, with coastal chaetocerids and ' Pennatae' still strongly dominant. While the neritic Biddulphiineae were observed at the inshore
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. ~W|i074 WSI073 WSI07 2 WSKD7I. â ⢠TOTAL DIATOMS . « CHAETOCERACEAE , , PENNATAE" ..âââ,.â BIEXXJLPHIINEAE o- o DISCINEAE SOLENIINEAE SO IOO SEA MILES FROM LAND Fig. 78. Estimated total diatoms and diatom group totals, survey II. A. Walvis Bay line, 29 September-2 October 1950. B. Middle Intermediate line, 28 September 1950. high at the second station seawards, with coastal chaetocerids and ' Pennatae' still strongly dominant. While the neritic Biddulphiineae were observed at the inshore station only, as was to be expected, members of the other two groups persisted right to the outer end of this comparatively short line, and it was only at the outermost station that the oceanic solenoids became equally important. This distribution resembled that seen on the mid-intermediate line (that next to the N. in the series) during the first survey. On the southern intermediate line, the falling-off in quantity from the exceptionally rich inshore station was steep, but the succeeding stations seawards were still quite rich and showed a typical coastal flora extending fully 50 sea-miles from the coast. It seems probable that here again the inshore stations were characteristic of the active upwelling shown on the Sylvia Hill line. The sharp fall in abundance from station WS 1060 to station WS 1059, and the persistence at the latter station and those towards the seaward end of the line of a scanty oceanic type of plankton, was correlated with the pronounced intrusion of oceanic water to the north of the Orange river line, illustrated by the surface- temperature pattern (Fig. 76). The detailed figures for the southern intermediate line in spring show some minor anomalies at group level that require comment. At the outer oceanic station Discineae and 'Pennatae', both 16. Please note that these images are extracted from scanned page images that may have been digitally
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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
